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You are here: Home > Pistons > Autotec Forged Pistons > Chevrolet > Chevrolet - Big Block > Flat Top

Autotec flat top pistons are manufactured on forged side relief, 4032 low expansion, high silicon material excellent for street or strip applications, fitting most 23 heads. They feature:
  • CNC precision machined ring grooves for 1.5 1.5 3.0mm low friction rings.
  • Top ring land gas distribution grooves serve to enhance performance and improve ring seal.
  • .990 diameter, 2.800 long, 51 series steel wrist pins with pin fit, wire locks, broached pin oilers, and gas accumulator grooves included at no extra charge.
  • Diamond turned skirts.





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Autotec Forged Pistons
Autotec Forged Pistons_Chevrolet 454_Dome_1.270 C/H_4.250 Stroke_6.385 Rod_4.280 Bore_-3.0cc_.990 Pin_Open Chamber Head
Price $736.00

P/N: ATK-1000260
  • V/R for 23 Heads
  • 4.280 Bore
  • 1.270 Compression Height
  • 4.250 Stroke
  • 6.385 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs

Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec Forged Pistons_Chevrolet 454_Dome_1.270 C/H_4.250 Stroke_6.385 Rod_4.310 Bore_-3.0cc_.990 Pin_Open Chamber Head
Price $736.00

P/N: ATK-1000261
  • V/R for 23 Heads
  • 4.310 Bore
  • 1.270 Compression Height
  • 4.250 Stroke
  • 6.385 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs

Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec Forged Pistons_Chevrolet 454_Dome_1.270 C/H_4.250 Stroke_6.385 Rod_4.320 Bore_-3.0cc_.990 Pin_Open Chamber Head
Price $736.00

P/N: ATK-1000262
  • V/R for 23 Heads
  • 4.320 Bore
  • 1.270 Compression Height
  • 4.250 Stroke
  • 6.385 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs

Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec Forged Pistons_Chevrolet 454_Dome_1.270 C/H_4.250 Stroke_6.385 Rod_4.350 Bore_-3.0cc_.990 Pin_Open Chamber Head
Price $736.00

P/N: ATK-1000263
  • V/R for 23 Heads
  • 4.350 Bore
  • 1.270 Compression Height
  • 4.250 Stroke
  • 6.385 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs

Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec Forged Pistons_Chevrolet 454_Dome_1.395 C/H_4.000 Stroke_6.385 Rod_4.280 Bore_-3.0cc_.990 Pin_Open Chamber Head
Price $736.00

P/N: ATK-1000248
  • V/R for 23 Heads
  • 4.280 Bore
  • 1.395 Compression Height
  • 4.000 Stroke
  • 6.385 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs

Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec Forged Pistons_Chevrolet 454_Dome_1.395 C/H_4.000 Stroke_6.385 Rod_4.310 Bore_-3.0cc_.990 Pin_Open Chamber Head
Price $736.00

P/N: ATK-1000249
  • V/R for 23 Heads
  • 4.310 Bore
  • 1.395 Compression Height
  • 4.000 Stroke
  • 6.385 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs

Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec Forged Pistons_Chevrolet 454_Dome_1.395 C/H_4.000 Stroke_6.385 Rod_4.320 Bore_-3.0cc_.990 Pin_Open Chamber Head
Price $736.00

P/N: ATK-1000250
  • V/R for 23 Heads
  • 4.320 Bore
  • 1.395 Compression Height
  • 4.000 Stroke
  • 6.385 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs

Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec Forged Pistons_Chevrolet 454_Dome_1.395 C/H_4.000 Stroke_6.385 Rod_4.350 Bore_-3.0cc_.990 Pin_Open Chamber Head
Price $736.00

P/N: ATK-1000251
  • V/R for 23 Heads
  • 4.350 Bore
  • 1.395 Compression Height
  • 4.000 Stroke
  • 6.385 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs

Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec Forged Pistons_Chevrolet 454_Dome_1.520 C/H_4.250 Stroke_6.135 Rod_4.280 Bore_-3.0cc_.990 Pin_Open Chamber Head
Price $736.00

P/N: ATK-1000254
  • V/R for 23 Heads
  • 4.280 Bore
  • 1.520 Compression Height
  • 4.250 Stroke
  • 6.135 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs

Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec Forged Pistons_Chevrolet 454_Dome_1.520 C/H_4.250 Stroke_6.135 Rod_4.310 Bore_-3.0cc_.990 Pin_Open Chamber Head
Price $736.00

P/N: ATK-1000255
  • V/R for 23 Heads
  • 4.310 Bore
  • 1.520 Compression Height
  • 4.250 Stroke
  • 6.135 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs

Price includes pistons, pins, locks and oil rail spacers (as required).
more info