AUTOTEC 4032 FORGED FLAT TOP PISTONS PONTIAC 400/406/408/428/433/435/455/463/468

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. Pistons are manufactured on 4032 low expansion, high silicon material excellent for street or strip applications. CNC Precision machined ring grooves for 1.5, 1.5, 3.0 mm rings unless otherwise indicated. Top ring land gas distribution groove to enhance performance and improve ring seal. 980-2700-51-15C wrist pin (145 grams), pin fitting, wire locks, broached pin oilers and accumulator grooves are included. Diamond turned skirts. Forged side relief with external lightening cavities. American made. Cubic Inch Bore Size Over Size Stroke Rod Length Comp. Height 72cc 80cc 87cc Dome Volume Gram Weight Foot Notes Piston Part Number Street Ring Set 400 Flattop. Standard Bore = 4.120, Standard Stroke = 3.750 1/16, 1/16, 3/16 Ring Package 406 4.150 0.030 3.750 6.625 1.700 10.8 9.9 9.3 -3.8 CALL 1000578 408 4.160 0.040 3.750 6.625 1.700 10.8 10.0 9.3 -3.8 CALL 1000579 428 Flattop. Standard Bore = 4.120, Standard Stroke = 4.000 1/16