JE Pistons Standard 23 Domed Forged Piston Set - SB Chevy 359 C.I. - Bore" 4.040" - Stroke: 3.500" - Rod Length: 6.000" - Block Height: 9.000" H770001 Factory style twist-in oil fill

Factory style twist-in oil fill cap

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JE Pistons Standard 23 Domed Forged Piston Set - SB Chevy 359 C.I. - Bore" 4.040" - Stroke: 3.500" - Rod Length: 6.000" - Block Height: 9.000" H770001 Factory style twist-in oil fillThese 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