KB Hypereutectic SB Chevy Dished Piston Set - 4.155" Bore - 3.750" Stroke - 5.700" Rod Length Eaton Torque Control the new piece makes efficient

the new piece makes efficient use of space and materials

12V Remote Control

Helps Eliminate Downshifting While Towing

Stainless Steel Mounting Hardware

1966-1972 Chevrolet Bel Air

KB Hypereutectic SB Chevy Dished Piston Set - 4.155" Bore - 3.750" Stroke - 5.700" Rod Length Eaton Torque Control the new piece makes efficientModern 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