All

Valve Guide,Intake Cast Iron .003 Size, 80" Shovel 78/83 20-2053C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.003 Size O.D.
Fits Shovelhead 80ci 1978/1983 .6245 STD O.D.

Valve Guide,Intake Cast Iron .003 Size, Evo 84/99, Tc 99/04 XL 86/03, 20-4323C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibllewhite
Cast Iron intake valve guide
.003 Size O.D.
Fits Big Twin Evolution 1984/1999 .562 STD O.D. with .420 O.D. valve seal area
Twin Cam 1999/2004
Sportster Evolution 1986/2003

Valve Guide,Intake Cast Iron .004 Size, 80" Shovel 78/83 20-2054C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.004 Size O.D.
Fits Shovelhead 80ci 1978/1983 .6245 STD O.D.

Valve Guide,Intake Cast Iron .004 Size, Evo 84/99, Tc 99/04 XL 86/03, 20-4324C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.004 Size O.D.
Fits Big Twin Evolution 1984/1999 .562 STD O.D. with .420 O.D. valve seal area
Twin Cam 1999/2004
Sportster Evolution 1986/2003

Valve Guide,Intake Cast Iron .005 Size, 80" Shovel 78/83 20-2055C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.005 Size O.D.
Fits Shovelhead 80ci 1978/1983 .6245 STD O.D.

Valve Guide,Intake Cast Iron .006 Size, 74" Shovel 66/77 20-2026C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.006 Size O.D.
Fits Big Twin 61 ci & 74 ci 1948/1977 .5655 STD O.D.

Valve Guide,Intake Cast Iron .006 Size, 80" Shovel 78/83 20-2056C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.006 Size O.D.
Fits Shovelhead 80ci 1978/1983 .6245 STD O.D.

Valve Guide,Intake Cast Iron .008 Size, 74" Shovel 66/77 20-2028C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.008 Size O.D.
Fits Big Twin 61 ci & 74 ci 1948/1977 .5655 STD O.D.

Valve Guide,Intake Cast Iron .008 Size, 80" Shovel 78/83 20-2058C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.008 Size O.D.
Fits Shovelhead 80ci 1978/1983 .6245 STD O.D.

Valve Guide,Intake Cast Iron .010 Size, 74" Shovel 66/77 20-2029C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.010 Size O.D.
Fits Big Twin 61 ci & 74 ci 1948/1977 .5655 STD O.D.

Valve Guide,Intake Cast Iron .010 Size, 80" Shovel 78/83 20-2059C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.010 Size O.D.
Fits Shovelhead 80ci 1978/1983 .6245 STD O.D.

Valve Guide,Intake Cast Iron .010 Size, Evo 84/99, Tc 99/04 XL 86/03, 20-4329C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.010 Size O.D.
Fits Big Twin Evolution 1984/1999 .562 STD O.D. with .420 O.D. valve seal area
Twin Cam 1999/2004
Sportster Evolution 1986/2003

Valve Guide,Intake Cast Iron Std Size, 74" Shovel 66/77 20-2020C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
Standard Size O.D.
Fits Big Twin 61ci & 74ci 1948/1977 (.5655 STD O.D.)

Valve Guide,Intake Cast Iron Std Size, 80" Shovel 78/83 20-2050C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
Standard Size O.D.
Fits Shovelhead 80ci 1978/1983 .6245 STD O.D.

Valve Guide,Intake Cast Iron Std Size,Evo 84/99,Tc 99/04, XL 86/03 20-4320C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
Standard Size O.D.
Fits Big Twin Evolution 1984/1999 .562 STD O.D. with .420 O.D. valve seal area
Twin Cam 1999/2004
Sportster Evolution 1986/2003

Valve Guide,Intake Cast Iron. .004 Size, 74" Shovel 66/77 20-2024C
C630 Nickel/Bronze
C630 is a blend of copper, nickel, and aluminum. The high copper content gives excellent thermal qualities, the nickel makes the guides tough and wear resistant, and the aluminum brings work hardening characteristics. This bonze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior control. The expansion qualities of C630 bronze make it especially compatible with aluminum cylinder heads.

Cast Iron
KPMI R&D has produced a proprietary cast iron blend that thrives in the tough operating conditions of today's engine. KPMI's certified cast iron provides excellent wear resistance and a superior guide bore finish that is easy on valve stems.

Manganese
These Engine Builder valve guides have been designed with the price conscious builder in mind. Expect the same exacting KPMI tolerances, but with a reduced toughness/wear-ability when compared to the premium C360 Nickel Aluminum Bronze valve guides. The softer manganese guides are easily reamed and then can be delicately finished with our high quality ball tones. Now, with any battery operated or electric drill you can ream and hone manganese valve guides in less time and in the absence of expensive honing equipment required to properly size tough C360 guides.

Superior Airflow
Guide profiles are designed to have as little effect on the airstream as possible while maintaining critical cross sectional thickness in high temperature areas. Promoting both high performance and endurance.

Tight Tolerances
High concentricity tolerances are held to insure the best possible geometry between the seat and guide is maintained when the guides are replaced. This means minimal material removal from the seat, time savings, and consistent chamber volumes when valve jobs are performed.Kibblewhite
Cast Iron intake valve guide
.004 Size O.D.
Fits Big Twin 61 ci & 74 ci 1948/1977 .5655 STD O.D.