Speed Pro Premium Piston Rings 4.030" Bore 1.50 x 1.50 x 4.00 mm Thick Standard Tension - Moly YA0640 5000 lb/in Spring Rate

5000 lb/in Spring Rate

1967-1986 Pontiac Bonneville

NOTE: Drilling of the cam timing gear is required for installation

The KYB Excel-G is a nitrogen gas-charged

Another great tuning kit from Holley

Speed Pro Premium Piston Rings 4.030" Bore 1.50 x 1.50 x 4.00 mm Thick Standard Tension - Moly YA0640 5000 lb/in Spring RateProduct Description: Piston Rings Performance 4. 030 in Bore Drop In 1. 5 x 1. 5 x 4. 0 mm Thick Standard Tension Steel Moly 8 Cylinder From pistons to engine bearing components, Speed Pro offers an array of performance engine parts. You can rely on Speed Pro for industry leading performance engine technologies, from cutting edge Digital Diamond Profiled pistons to A Series bearings. They are engine components performance enthusiasts and racers can