JE Pistons Standard 23 Degree Domed Forged Piston Set - SB Chevy - 436 C.I. - 4.165" Bore Size - 4.000" Stroke - 6.000" Rod Length Ear Buds & Helmet Speakers this to add a finish

this to add a finish to complement your preference of helmet paintwork

Fits custom models from 1964 to 1972 including Chevrolet Chevelle and wagon

2009-2012 Dodge Challenger

200 in Rectangle Port

JE Pistons Standard 23 Degree Domed Forged Piston Set - SB Chevy - 436 C.I. - 4.165" Bore Size - 4.000" Stroke - 6.000" Rod Length Ear Buds & Helmet Speakers this to add a finishThese 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