AUTO TEC SMALL BLOCK CHEVY 4.000 BORE INVERTED DOME PISTONS
CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. Pistons are Manufactured on 4032 High Silicone material forgings that are excellent for street and strip applications. CNC Precision machined ring grooves for 1.5, 1.5, 3.0 rings. Top ring land gas distribution grrove to enhance performance and improve ring seal. 927-2700-51-15C wrist pins (130 Grams), pin fit, wire locks, broached pin oilers, and accumulator groove are included. Diamond turned skirts. Forged side relief with external lightening cavities where available. American made. Cubic Inch Bore Size Over Size Stroke Rod Length Comp. Height 64cc 66cc 72cc Dome Volume Gram Weight Foot Notes Piston Part Number Street Ring Set 350 4.000 STD 3.480 5.700 1.560 10.2 9.5 8.9 -11.0 -- S 1000127 AT 4000 353 4.020 0.020 3.480 5.700 1.560 10.1 9.5 8.9 -11.9 -- S 1000128 AT 4020 355 4.030 0.030 3.480 5.700 1.560 10.1 9.5 8.9 -12.3 -- S 1000129 AT 4030 357 4.040 0.040 3.480 5.700 1.560 10.1 9.5 8.9 -12.7 -- S 1000130 AT 4040 360 4.060 0.060 3.480 5.700 1.560 10.1 9.5 8.9 -13.6 -- S 1000131 AT 4060 353 4.020 0.020 3.480 6.000 1.260 10.1 9.5 8.9 -11.9 -- S,R 1000132 AT 4020 355 4.030 0.030 3.480 6.000 1.260 10.1 9.5 8.9 -12.3 -- S,R 1000133 AT 4030 356 4.035 0.035 3.480 6.000 1.260 10.1 9.5 8.9 -12.5 -- S,R 1000134 AT 4035 357 4.040 0.040 3.480 6.000 1.260 10.1 9.5 8.9 -12.7 -- S,R 1000135 AT 4040 360 4.060 0.060 3.480 6.000 1.260 10.1 9.5 8.9 -13.6 -- S,R 1000136 AT 4060 352 4.000 STD 3.500 6.125 1.125 10.1 9.5 8.9 -11.5 -- S,R 1000137 AT 4000 355 4.020 0.020 3.500 6.125 1.125 10.1 9.5 8.9 -12.4 -- S,R 1000138 AT 4020 357 4.030 0.030 3.500 6.125 1.125 10.1 9.5 8.9 -12.8 -- S,R 1000139 AT 4030 358 4.035 0.035 3.500 6.125 1.125 10.1 9.5 8.9 -13.0 -- S,R 1000140 AT 4035 359 4.040 0.040 3.500 6.125 1.125 10.1 9.5 9.0 -13.2 -- S,R 1000141 AT 4040 362 4.060 0.060 3.500 6.125 1.125 10.1 9.5 9.0 -14.1 -- S,R 1000142 AT 4060 377 4.000 STD 3.750 5.565 1.560 10.1 9.5 9.0 -17.6 -- -- 1000127 AT 4000 381 4.020 0.020 3.750 5.565 1.560 10.1 9.5 9.0 -18.5 -- -- 1000128 AT 4020 383 4.030 0.030 3.750 5.565 1.560 10.1 9.5 9.0 -18.9 -- -- 1000129 AT 4030 385 4.040 0.040 3.750 5.565 1.560 10.1 9.5 9.0 -19.4 -- -- 1000130 AT 4040 388 4.060 0.060 3.750 5.565 1.560 10.1 9.5 9.0 -20.3 -- -- 1000131 AT 4060 377 4.000 STD 3.750 5.700 1.425 10.1 9.5 9.0 -17.6 -- -- 1000143 AT 4000 381 4.020 0.020 3.750 5.700 1.425 10.1 9.5 9.0 -18.5 -- -- 1000144 AT 4020 383 4.030 0.030 3.750 5.700 1.425 10.1 9.5 9.0 -18.9 -- -- 1000145 AT 4030 384 4.035 0.035 3.750 5.700 1.425 10.1 9.5 9.0 -19.2 -- -- 1000146 AT 4035 385 4.040 0.040 3.750 5.700 1.425 10.1 9.5 9.0 -19.4 -- -- 1000147 AT 4040 388 4.060 0.060 3.750 5.700 1.425 10.1 9.5 9.0 -20.3 -- -- 1000148 AT 4060 377 4.000 STD 3.750 5.850 1.285 10.1 9.5 9.0 -17.6 -- -- 1000149 AT 4000 383 4.030 0.030 3.750 5.850 1.285 10.1 9.5 9.0 -18.9 -- -- 1000150 AT 4030 385 4.040 0.040 3.750 5.850 1.285 10.1 9.5 9.0 -19.4 -- -- 1000151 AT 4040 377 4.000 STD 3.750 6.000 1.125 10.1 9.5 9.0 -17.6 -- R 1000137 AT 4000 381 4.020 0.020 3.750 6.000 1.125 10.1 9.5 9.0 -18.5 -- R 1000138 AT 4020 383 4.030 0.030 3.750 6.000 1.125 10.1 9.5 9.0 -18.9 -- R 1000139 AT 4030 384 4.035 0.035 3.750 6.000 1.125 10.1 9.5 9.0 -19.2 -- R 1000140 AT 4035 385 4.040 0.040 3.750 6.000 1.125 10.1 9.5 9.0 -19.4 -- R 1000141 AT 4040 388 4.060 0.060 3.750 6.000 1.125 10.1 9.5 9.0 -20.3 -- R 1000142 AT 4060 395 4.030 0.030 3.875 6.000 1.060 10.1 9.5 9.0 -22.0 -- R 1000152 AT 4030 397 4.040 0.040 3.875 6.000 1.060 10.1 9.5 9.0 -22.5 -- R 1000153 AT 4040 Lightweight Tight running clearance WILL SHIP ANYWHERE IN THE LOWER 48 STATES FOR $25.75 WE CAN BEAT ANY PRICE ON AUTO TEC WE HANDLE THE COMPLETE AUTO TEC LINE. WE ALSO HAVE CRANKS AND RODS AVAILABLE ALONG WITH THE PREMIUM AKERLY AND CHILDS, HASTINGS, AND TOTAL SEAL PISTON RING LINES THAT WE USE IN ALL OUR RACING ENGINES. CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. CONTACT US THE PRICE IS NEGOTIABLE BEST OFFER Warning: May cause cancer and reproductive harm.