JE Pistons Standard 23 Domed Forged Piston Set - SB Chevy - 434 C.I. - 4.155" Bore Size - 4.000" Stroke - 6.000" Rod Length AA0710AG3S54 M6049 B351

M6049 B351

8-foot single eyelet on one end/threaded on the other

1987 Chevrolet R20 CID 400

Dual 2-1/2 in Outlet

JE Pistons Standard 23 Domed Forged Piston Set - SB Chevy - 434 C.I. - 4.155" Bore Size - 4.000" Stroke - 6.000" Rod Length AA0710AG3S54 M6049 B351These 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