JE Pistons Standard 23 Domed Forged Piston Set - SB Chevy - 434 C.I. - 4.155" Bore Size - 4.000" Stroke - 6.000" Rod Length 8001000 Black Anodized Plate

Black Anodized Plate

13 x 4 x 5 in

320 in OD Valve Seat

Dramatically reduces toe rod flex

JE Pistons Standard 23 Domed Forged Piston Set - SB Chevy - 434 C.I. - 4.155" Bore Size - 4.000" Stroke - 6.000" Rod Length 8001000 Black Anodized PlateThese high compression pistons are compatible with most aftermarket 23? heads and are ideal for drag racing and circle track applications. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams. Precision CNC ring grooves are designed for 1 16, 1 16, 3 16 rings. Will not fit Pro Topline or Brodix 11X cylinder heads. Includes: Pin #927 2750 15 51S (130g) Double Spiro locks #927 042 CS Contact reduction grooves