KB Hypereutectic Flat Top Pistons - SB Chevy 350 - 5.7" Rod Length, .060" Over Bore Size Swivel Fittings The kits are available for

The kits are available for our most popular Holley carburetor models and can be installed with common hand tools that you already have in your shop

5/8 in and 3/4 in Shaft

Black Zinc

10 AN Male to 10 AN Male Bulkhead

As the military surplus market dried up

KB Hypereutectic Flat Top Pistons - SB Chevy 350 - 5.7" Rod Length, .060" Over Bore Size Swivel Fittings The kits are available forModern 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