Mahle MS Piston Set Chevy SB 389ci 4.135in Bore 3.625/3.75 Stroke 6.125/6 Rod .927 HD Pin 9cc 13.5CR

SMALL BLOCK CHEVY 23? DOME Gasported / Asymmetrical Valve Pockets PowerPak Plus 389cid 4.135 x 1.062RCH, 3.625stroke,6.125rod,0.927pin,9.0cc,445g,13.5CR, 2618.