KB Hypereutectic Flat Top Pistons - SB Chevy 383 - 5.7" Rod Length, .030" Over Bore Size BR40015 black anodize finish An inexpensive

black anodize finish An inexpensive insurance policy to protect your investment

Billet aluminum tool used to fill shocks equipped with a seal screw as required by the rules of some race sanctioning bodies

Trap Door Baffle

Check out all our products from JOES Racing Products including JOES Slotted Bearing Upper Control Arms

Short Design

KB Hypereutectic Flat Top Pistons - SB Chevy 383 - 5.7" Rod Length, .030" Over Bore Size BR40015 black anodize finish An inexpensiveModern 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