JE Pistons Standard 23 Degree Domed Forged Piston Set - SB Chevy 422 C.I. - Bore" 4.165" - Stroke: 3.875" - Rod Length: 6.000" 1950893 32 psi Off

32 psi Off

Opening Vacuum 10

Holley recommends part numbers 12-600 or 12-800 for optimum hot fuel handling

Shaft is steel

JE Pistons Standard 23 Degree Domed Forged Piston Set - SB Chevy 422 C.I. - Bore" 4.165" - Stroke: 3.875" - Rod Length: 6.000" 1950893 32 psi OffThese 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