KB Hypereutectic Flat Top Pistons - SB Chevy 350 - 5.7" Rod Length, .040" Over Bore Size Shift Light Tach 2001-2006 GMC Sierra 2500 HD

2001-2006 GMC Sierra 2500 HD 78

resulting in better fit and less material bunching when holding the wheel

1986-1993 Ford E-350 Econoline Club Wagon

Screw-On Cap

KB Hypereutectic Flat Top Pistons - SB Chevy 350 - 5.7" Rod Length, .040" Over Bore Size Shift Light Tach 2001-2006 GMC Sierra 2500 HDModern 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