KB Hypereutectic Flat Top Pistons - SB Chevy 350 - 5.7" Rod Length, .040" Over Bore Size Hastings 1959-1986 Pontiac Parisienne

1959-1986 Pontiac Parisienne

Pontiac GTO 1968-72

It steadies the head and helmet in bumps and jolts over rought terrain

Will fit ALL models without a fifth-wheel hitch and will also fit most side mount fifth-wheel hitch applications

Bust Panel Kits

KB Hypereutectic Flat Top Pistons - SB Chevy 350 - 5.7" Rod Length, .040" Over Bore Size Hastings 1959-1986 Pontiac ParisienneModern 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