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


Small Open Chamber Dome


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Autotec Forged Pistons
Autotec Forged Pistons_Chevrolet 454_Small Dome_1.270 C/H_4.250 Stroke_6.385 Rod_4.280 Bore_22.7cc_.990 Pin_Open Chamber Head
Price $821.00

P/N: ATK-1000307
  • 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_Small Dome_1.270 C/H_4.250 Stroke_6.385 Rod_4.310 Bore_21.2cc_.990 Pin_Open Chamber Head
Price $821.00

P/N: ATK-1000308
  • 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_Small Dome_1.270 C/H_4.250 Stroke_6.385 Rod_4.320 Bore_20.7cc_.990 Pin_Open Chamber Head
Price $821.00

P/N: ATK-1000309
  • 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_Small Dome_1.270 C/H_4.250 Stroke_6.385 Rod_4.350 Bore_19.2cc_.990 Pin_Open Chamber Head
Price $821.00

P/N: ATK-1000310
  • 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_Small Dome_1.395 C/H_4.000 Stroke_6.385 Rod_4.280 Bore_28.9cc_.990 Pin_Open Chamber Head
Price $821.00

P/N: ATK-1000295
  • 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_Small Dome_1.395 C/H_4.000 Stroke_6.385 Rod_4.310 Bore_27.5cc_.990 Pin_Open Chamber Head
Price $821.00

P/N: ATK-1000296
  • 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_Small Dome_1.395 C/H_4.000 Stroke_6.385 Rod_4.320 Bore_27.0cc_.990 Pin_Open Chamber Head
Price $821.00

P/N: ATK-1000297
  • 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_Small Dome_1.395 C/H_4.000 Stroke_6.385 Rod_4.350 Bore_25.6cc_.990 Pin_Open Chamber Head
Price $821.00

P/N: ATK-1000298
  • 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_Small Dome_1.520 C/H_4.250 Stroke_6.135 Rod_4.280 Bore_22.7cc_.990 Pin_Open Chamber Head
Price $821.00

P/N: ATK-1000301
  • 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_Small Dome_1.520 C/H_4.250 Stroke_6.135 Rod_4.310 Bore_21.2cc_.990 Pin_Open Chamber Head
Price $821.00

P/N: ATK-1000302
  • 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