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AutoTec Products
  Small Block Chevy
  LS1 LS2 LS6 Flattop
  LS1 LS2 LS6 Inverted Dome
  4.000 Bore SBC Flattop
  4.000 Bore Inverted Dome
  SBC 4.000 Bore Dome Top
  4.125 Bore Flattop
  4.125 Bore Inverted Dome
  4.125 Bore Dome Top
  Big Block Chevy
  Big Block Chevrolet Flat Top
  Big Block Chevrolet
Inverted Dome
  Big Block Chevrolet
Small Dome
  Small Block Ford
  302 Flat Top
  302 Inverted Dome
  302 FT & INV Dome Twisted Wedge
  302 4000 Dome
  351 Windsor
  351 Windsor Inverted Dome
  351 Windsor Dome
  351 Cleveland Flat Top & Inv Dome
  Big Block Ford
  460 Ford Flat Top &
Inverted Dom
  Small Block Chrysler
  340 & 360 Flat Top
  340 & 360 Inv Dome
  Big Block Chrysler
  440 Flat Top
  Pontiac
  Small Block Pontiac Flattop
  Oldsmobile
  455 Oldsmobile Flattop

Small Block Ford 302 Inverted Dome
  • Pistons are manufactured on 4032 low expansion, high silicon material excellent for moderate turbocharge or supercharge use.
  • CNC Precision machined ring grooves for 1.5, 1.5, 3.0 Rings.
  • Top ring land gas distribution groove to enhance performance and improve ring seal.
  • 912-2700-51-15C wrist pins (120 grams) or 927-270-51-15C (130 grams), pin fitting, wire locks, broached pin oilers and accumulator grooves are included.
  • Diamond turned skirts.
  • Forged side relief with external lightening cavities.
Cubic Inch Bore Size Over Size Stroke Rod Length Comp. Height 54cc 60cc 64cc Dome Volume Gram Weight Foot Notes Piston Number Street Ring Set
302 4.000 STD 3.000 5.090 1.600 9.7 9.0 8.6 -8.3 CALL P 1000375 AT 4000
304 4.020 0.020 3.000 5.090 1.600 9.7 9.0 8.6 -9.1 CALL P 1000376 AT 4020
306 4.030 0.030 3.000 5.090 1.600 9.7 9.0 8.6 -9.5 CALL P 1000377 AT 4030
307 4.040 0.040 3.000 5.090 1.600 9.7 9.0 8.6 -9.9 CALL P 1000378 AT 4040
310 4.060 0.060 3.000 5.090 1.600 9.7 9.0 8.6 -10.7 CALL P 1000379 AT 4060
8.2000 Block Deck Height 302 Stroker Combinations with .927 Wrist Pin Diameter
326 4.000 STD 3.250 5.400 1.165 9.6 9.0 8.6 -14.8 CALL 1000380 AT 4000
330 4.020 0.020 3.250 5.400 1.165 9.6 9.0 8.6 -15.6 CALL 1000381 AT 4020
331 4.030 0.030 3.250 5.400 1.165 9.6 9.0 8.6 -16.0 CALL 1000382 AT 4030
333 4.040 0.040 3.250 5.400 1.165 9.6 9.0 8.6 -16.5 CALL 1000383 AT 4040
336 4.060 0.060 3.250 5.400 1.165 9.6 9.0 8.6 -17.3 CALL 1000384 AT 4060
347 4.125 0.125 3.250 5.400 1.165 9.6 9.0 8.6 -19.7 CALL 1000385 AT 4125
351 4.145 0.145 3.250 5.400 1.165 9.6 9.0 8.6 -20.6 CALL 1000386 AT 4145
353 4.155 0.155 3.250 5.400 1.165 9.6 9.0 8.6 -21.0 CALL 1000387 AT 4155
342 4.000 STD 3.400 5.400 1.100 9.6 9.0 8.6 -18.6 CALL R 1000388 AT 4000
345 4.020 0.020 3.400 5.400 1.100 9.6 9.0 8.6 -19.5 CALL R 1000389 AT 4020
347 4.030 0.030 3.400 5.400 1.100 9.6 9.0 8.6 -20.0 CALL R 1000390 AT 4030
349 4.040 0.040 3.400 5.400 1.100 9.6 9.0 8.6 -20.4 CALL R 1000391 AT 4040
352 4.060 0.060 3.400 5.400 1.100 9.6 9.0 8.6 -21.3 CALL R 1000392 AT 4060
363 4.125 0.125 3.400 5.400 1.100 9.6 9.0 8.6 -23.8 CALL R 1000393 AT 4125
367 4.145 0.145 3.400 5.400 1.100 9.6 9.0 8.6 -24.8 CALL R 1000394 AT 4145
369 4.155 0.155 3.400 5.400 1.100 9.6 9.0 8.6 -25.2 CALL R 1000395 AT 4155
354 4.030 0.030 3.470 5.400 1.065 9.6 9.0 8.6 -21.8 CALL R 1000396 AT 4030
356 4.040 0.040 3.470 5.400 1.065 9.6 9.0 8.6 -22.2 CALL R 1000397 AT 4040


 

 

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