KB Hypereutectic SB Chevy Dished Piston Set - 4.155" Bore - 3.750" Stroke - 5.700" Rod Length BR10032 (25) 56 Series Terminal (female)

(25) 56 Series Terminal (female)

Cloyes Timing Chain Sets

2500 / 6600 RPM

000 in Rotor Bolt Pattern

500 in Backspace

KB Hypereutectic SB Chevy Dished Piston Set - 4.155" Bore - 3.750" Stroke - 5.700" Rod Length BR10032 (25) 56 Series Terminal (female)Modern 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