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 Shaft is steel

Shaft is steel

7-1/2 in to 8-3/4 in Length

If the distributor will not go all the way down

Plug and Play with 558-314

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

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 Shaft is steelThese 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