JE Pistons Standard 23 Degree Domed Forged Piston Set - SB Chevy - 422 C.I. - 4.165" Bore Size - 3.875" Stroke - 6.000" Rod Length WM1405250T1500 1" tall spacer fits most

1" tall spacer fits most Chevy V8’s

Breathers are 1" tall and 1-3/8" in diameter

supports up to 1300 HP EFI

Calibrated For 60MPH At 1000 Cable RPMAuto Meter Gauges are the number one choice of professional racers worldwide

Holds Any Autometer 3-3/8" In-Dash Tachometers Or Speedometers

JE Pistons Standard 23 Degree Domed Forged Piston Set - SB Chevy - 422 C.I. - 4.165" Bore Size - 3.875" Stroke - 6.000" Rod Length WM1405250T1500 1" tall spacer fits mostThese 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