KB Hypereutectic SB Chevy Flat Top Piston Set - 4.030" Bore - 3.750" Stroke - 6.000" Rod Length 815005 Self Adjusting

Self Adjusting

1973-1993 Buick Regal

This inner portion of the valve stem is often damaged or leaking

shirts and hoods) All of this means that it will look great and keep you safe for a long long time

252 in Thick

KB Hypereutectic SB Chevy Flat Top Piston Set - 4.030" Bore - 3.750" Stroke - 6.000" Rod Length 815005 Self AdjustingModern piston design locates the top ring higher for improved performance. a high top ring operates at higher temperatures and requires a larger top ring end gap. To find the proper ring end gap, multiply your bore size by the ring end gap factor listed on the chart (i. e. , Street Normally Aspirated 4. 000" bore x . 0065" gap factor = . 026" total top ring end gap). Your hypereutectic performance piston will expand less than typical cast or forged