Item Package Dimension: 22.5" L x 10.28" W x 5.25" H
Item Package Weight: 18.39 lb
Sealed power Domed head .340" high (30cc) w/2-valve reliefs. DurOshield skirt coated piston set of (8 for 1970-76 Car (USA). Pistons ONLY, NO Rings! These fit Chevrolet 454 bore +.030" or 4.280" bore (at +.030"). 1.640" compression distance. Approx. Compression (w/.030" bore): w/106.9cc heads 11.46:1, w/116.9cc 10.41:1, w/119cc 10.22:1. 5/64" 5/64" 3/16" ring grooves .989" pin diam. - pins included. For stock length 6.135" rods, Press-fit or floating Stock 4.000" stroke