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 Fits custom models from 1964

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

the Street Wideband provides the most important functions necessary to make sure you're extracting the most power possible

200 in Rectangle Port

Factory length for '64-'86 Chrysler 273-360 V8 with hydraulic cams and adjustable rockers

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 Fits custom models from 1964These 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