KB Hypereutectic Flat Top Pistons - SB Chevy 350 - 5.7" Rod Length, .040" Over Bore Size Shift Light Tach Performance Handling

Performance Handling

The adjusters on these belts have improved mechanisms built in to provide a tight lock when tightened down which means no need to tighten your belts while driving anymore

takes the guess work out of tuning your base fuel table

1986-1993 Ford E-350 Econoline Club Wagon

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

KB Hypereutectic Flat Top Pistons - SB Chevy 350 - 5.7" Rod Length, .040" Over Bore Size Shift Light Tach Performance HandlingModern 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