KB Hypereutectic Flat Top Pistons - SB Chevy 383 - 5.7" Rod Length, .040" Over Bore Size 1969993 For Small Block Ford 289-302

For Small Block Ford 289-302 and 351 Windsor

tube design provides excellent exhaust flow to let your Chrysler 361-440 (wedge-style) engine breathe deep to produce maximum horsepower and torque

1982-1992 GMC C2500 Suburban

Hedman Hedders 3" Stainless Steel Collector Ball Flange Kit

KB Hypereutectic Flat Top Pistons - SB Chevy 383 - 5.7" Rod Length, .040" Over Bore Size 1969993 For Small Block Ford 289-302Modern 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