KPMI, exhaust valve guide. C630. STD - 79-84 80" (1340cc) Shovelhead (NU) 989045 This system is a way

This system is a way to vent the oil tank to help reduce pressure build-up and reduce power robbing pressures and stops dipstick blow-out

elasticized cuff and waist

The installation kit for this kit is separately available as 531268 and compatible with gear drive models only

Dependable and proven automotive technology

KPMI, exhaust valve guide. C630. STD - 79-84 80" (1340cc) Shovelhead (NU) 989045 This system is a wayC630 bearing bronze. Standard size: 0. 6250" O. D. (15. 88mm); 0. 3745" ID (9. 51mm); 1. 91" OAL (48. 51mm). C630 bearing bronze is a tough nickel aluminum bronze alloy typically used in high performance and racing applications where rapid heat transfer from the valve to head is important.