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You are here: Home > Pistons > Autotec Forged Pistons > Chevrolet > Chevrolet - Big Block > Dome Top
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Small Open Chamber Dome Large Open Chamber Dome Closed Chamber Dome

Autotec dome 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.


Please select your piston from the list below, or select from the categories listed above.
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Autotec Forged Pistons
Autotec_Chevrolet 396_Closed Chamber Dome_1.765 C/H_3.760 Stroke_6.135 Rod_4.125 through 4.155 Bore_25.5cc_.990 Pin_Standard Head

P/N: ATK-1000762_Base
  • V/R for Standard BB Chevrolet Head
  • 1.765 Compression Height
  • 3.760 Stroke
  • 6.135 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs
Available Bore Sizes: 4.125, 4.155
Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec_Chevrolet 427_Closed Chamber Dome_1.765 C/H_3.760 Stroke_6.135 Rod_4.250 through 4.280 Bore_20.0cc_.990 Pin_Standard Head

P/N: ATK-1000764_Base
  • V/R for Standard BB Chevrolet Head
  • 1.765 Compression Height
  • 3.760 Stroke
  • 6.135 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs
Available Bore Sizes: 4.250, 4.280
Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec_Chevrolet 454_Large Dome_1.120 C/H_4.250 Stroke_6.535 Rod_4.280 through 4.350 Bore_39.8cc_.990 Pin_Standard Head

P/N: ATK-1000685_Base
  • V/R for Standard BB Chevrolet Head
  • 1.120 Compression Height
  • 4.250 Stroke
  • 6.535 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs
Available Bore Sizes: 4.280, 4.310, 4.320, 4.350
Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec_Chevrolet 454_Large Dome_1.245 C/H_4.000 Stroke_6.535 Rod_4.280 through 4.350 Bore_45.0cc_.990 Pin_Standard Head

P/N: ATK-1000546_Base
  • V/R for Standard BB Chevrolet Head
  • 1.245 Compression Height
  • 4.000 Stroke
  • 6.535 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs
Available Bore Sizes: 4.280, 4.310, 4.320, 4.350
Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec_Chevrolet 454_Large Dome_1.270 C/H_4.250 Stroke_6.385 Rod_4.280 through 4.350 Bore_39.8cc_.990 Pin_Standard Head

P/N: ATK-1000675_Base
  • V/R for Standard BB Chevrolet Head
  • 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
Available Bore Sizes: 4.280, 4.310, 4.320, 4.350
Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec_Chevrolet 454_Large Dome_1.395 C/H_4.000 Stroke_6.385 Rod_4.280 through 4.350 Bore_45.0cc_.990 Pin_Standard Head

P/N: ATK-1000324_Base
  • V/R for Standard BB Chevrolet Head
  • 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
Available Bore Sizes: 4.280, 4.310, 4.320, 4.350
Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec_Chevrolet 454_Large Dome_1.520 C/H_4.250 Stroke_6.135 Rod_4.280 through 4.350 Bore_39.8cc_.990 Pin_Standard Head

P/N: ATK-1000665_Base
  • V/R for Standard BB Chevrolet Head
  • 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
Available Bore Sizes: 4.280, 4.310, 4.320, 4.350
Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec_Chevrolet 454_Large Dome_1.645 C/H_4.000 Stroke_6.135 Rod_4.280 through 4.350 Bore_45.0cc_.990 Pin_Standard Head

P/N: ATK-1000316_Base
  • V/R for Standard BB Chevrolet Head
  • 1.645 Compression Height
  • 4.000 Stroke
  • 6.135 Rod Length
  • .990 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 150 H/P
  • Forced Induction - 10 lbs
Available Bore Sizes: 4.280, 4.310, 4.320, 4.350
Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec_Chevrolet 454_Small Dome_1.270 C/H_4.250 Stroke_6.385 Rod_4.280 through 4.350 Bore_21.2cc_.990 Pin_Standard Head

P/N: ATK-1000307_Base
  • V/R for Standard BB Chevrolet Head
  • 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
Available Bore Sizes: 4.280, 4.310, 4.320, 4.350
Price includes pistons, pins, locks and oil rail spacers (as required).
more info
Autotec Forged Pistons
Autotec_Chevrolet 454_Small Dome_1.395 C/H_4.000 Stroke_6.385 Rod_4.280 through 4.350 Bore_27.5cc_.990 Pin_Standard Head

P/N: ATK-1000295_Base
  • V/R for Standard BB Chevrolet Head
  • 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
Available Bore Sizes: 4.280, 4.310, 4.320, 4.350
Price includes pistons, pins, locks and oil rail spacers (as required).
more info