350/400 FSR Hollow Dome

23º 350 & 400 F.S.R. HOLLOW DOME GP (GAS PORTED) New FSR version of our popular 23º domed pistons are ideal for circle track and drag racing. Up to 70 grams lighter than traditional full round (including wrist pin and rings), but stronger and more durable due to modern FEA-designed forging. Deeper valve pockets to accommodate higher lift cams and milled cylinder heads. Accepts low friction .043/.043/3.0mm ring package.

Includes:

  • Accumulator Groove
  • Contact Reduction Grooves
  • Double Pin Oilers
  • Lateral gas ports
  • Pin #927-2250-15-51C (106g)
  • Wire Locks #927-073-MW
Part # Bore Stroke Rod Deck Head CC Comp. Ratio Comp. Height Crown Vol. Ring Set Head Type Series Stock Action
301429 4.165 4.000 6.000 9.000 76.0 12.9 1.000 10.80 J71408-4165-5 Dome JE Pistons In stock
301429 4.165 4.000 6.000 9.000 64.0 15.2 1.000 10.80 J71408-4165-5 Dome JE Pistons In stock
301429 4.165 4.000 6.000 9.000 58.0 16.8 1.000 10.80 J71408-4165-5 Dome JE Pistons In stock
322538 4.035 3.750 6.000 9.000 64.0 13.7 1.125 11.00 J714F8-4030-5 Dome JE Pistons Back Order
322538 4.035 3.750 6.000 9.000 76.0 11.6 1.125 11.00 J714F8-4030-5 Dome JE Pistons Back Order
322538 4.035 3.750 6.000 9.000 58.0 15.0 1.125 11.00 J714F8-4030-5 Dome JE Pistons Back Order
322539 4.040 3.750 6.000 9.000 64.0 13.7 1.125 11.00 J714F8-4040-5 Dome JE Pistons Back Order
322539 4.040 3.750 6.000 9.000 76.0 11.6 1.125 11.00 J714F8-4040-5 Dome JE Pistons Back Order
322539 4.040 3.750 6.000 9.000 58.0 15.1 1.125 11.00 J714F8-4040-5 Dome JE Pistons Back Order
322537 4.030 3.750 6.000 9.000 64.0 13.6 1.125 11.00 J714F8-4030-5 Dome JE Pistons In stock
322537 4.030 3.750 6.000 9.000 76.0 11.6 1.125 11.00 J714F8-4030-5 Dome JE Pistons In stock
322537 4.030 3.750 6.000 9.000 58.0 15.0 1.125 11.00 J714F8-4030-5 Dome JE Pistons In stock
322540 4.060 3.750 6.000 9.000 64.0 13.8 1.125 11.00 J714F8-4060-5 Dome JE Pistons Back Order
322540 4.060 3.750 6.000 9.000 76.0 11.7 1.125 11.00 J714F8-4060-5 Dome JE Pistons Back Order
322540 4.060 3.750 6.000 9.000 58.0 15.2 1.125 11.00 J714F8-4060-5 Dome JE Pistons Back Order
322561 4.125 3.750 6.000 9.000 58.0 16.1 1.125 13.00 JG7708-4125-5 Dome JE Pistons Back Order
322561 4.125 3.750 6.000 9.000 64.0 14.6 1.125 13.00 JG7708-4125-5 Dome JE Pistons Back Order
322561 4.125 3.750 6.000 9.000 76.0 12.3 1.125 13.00 JG7708-4125-5 Dome JE Pistons Back Order
322536 4.020 3.750 6.000 9.000 58.0 14.9 1.125 11.00 J71408-4020-5 Dome JE Pistons Back Order
322536 4.020 3.750 6.000 9.000 64.0 13.6 1.125 11.00 J71408-4020-5 Dome JE Pistons Back Order
322536 4.020 3.750 6.000 9.000 76.0 11.6 1.125 11.00 J71408-4020-5 Dome JE Pistons Back Order
322562 4.130 3.750 6.000 9.000 58.0 16.1 1.125 13.00 JG7708-4130-5 Dome JE Pistons Back Order
322562 4.130 3.750 6.000 9.000 64.0 14.6 1.125 13.00 JG7708-4130-5 Dome JE Pistons Back Order
322562 4.130 3.750 6.000 9.000 76.0 12.4 1.125 13.00 JG7708-4130-5 Dome JE Pistons Back Order
301478 4.155 3.750 6.000 9.000 58.0 15.7 1.125 10.80 J71408-4155-5 Dome JE Pistons In stock
301478 4.155 3.750 6.000 9.000 64.0 14.3 1.125 10.80 J71408-4155-5 Dome JE Pistons In stock
301478 4.155 3.750 6.000 9.000 76.0 12.2 1.125 10.80 J71408-4155-5 Dome JE Pistons In stock
301450 4.155 3.875 6.000 9.000 76.0 12.5 1.062 10.80 J71408-4155-5 Dome JE Pistons In stock
301450 4.155 3.875 6.000 9.000 64.0 14.7 1.062 10.80 J71408-4155-5 Dome JE Pistons In stock
301450 4.155 3.875 6.000 9.000 58.0 16.1 1.062 10.80 J71408-4155-5 Dome JE Pistons In stock
301448 4.145 3.875 6.000 9.000 76.0 12.5 1.062 10.80 J71408-4145-5 Dome JE Pistons In stock
301448 4.145 3.875 6.000 9.000 64.0 14.7 1.062 10.80 J71408-4145-5 Dome JE Pistons In stock
301448 4.145 3.875 6.000 9.000 58.0 16.1 1.062 10.80 J71408-4145-5 Dome JE Pistons In stock
322535 4.000 3.750 6.000 9.000 64.0 13.5 1.125 11.00 J71408-4000-5 Dome JE Pistons Back Order
322535 4.000 3.750 6.000 9.000 76.0 11.5 1.125 11.00 J71408-4000-5 Dome JE Pistons Back Order
322535 4.000 3.750 6.000 9.000 58.0 14.8 1.125 11.00 J71408-4000-5 Dome JE Pistons Back Order
301458 4.185 4.000 6.000 9.000 76.0 13.0 1.000 10.80 J71408-4185-5 Dome JE Pistons Back Order
301458 4.185 4.000 6.000 9.000 64.0 15.3 1.000 10.80 J71408-4185-5 Dome JE Pistons Back Order
301458 4.185 4.000 6.000 9.000 58.0 16.9 1.000 10.80 J71408-4185-5 Dome JE Pistons Back Order
322563 4.145 3.750 6.000 9.000 76.0 12.4 1.125 13.00 JG7708-4145-5 Dome JE Pistons Back Order
322563 4.145 3.750 6.000 9.000 58.0 16.2 1.125 13.00 JG7708-4145-5 Dome JE Pistons Back Order
322563 4.145 3.750 6.000 9.000 64.0 14.7 1.125 13.00 JG7708-4145-5 Dome JE Pistons Back Order
301427 4.145 4.000 6.000 9.000 76.0 12.8 1.000 10.80 J71408-4145-5 Dome JE Pistons Back Order
301427 4.145 4.000 6.000 9.000 58.0 16.6 1.000 10.80 J71408-4145-5 Dome JE Pistons Back Order
301427 4.145 4.000 6.000 9.000 64.0 15.1 1.000 10.80 J71408-4145-5 Dome JE Pistons Back Order
301428 4.155 4.000 6.000 9.000 58.0 16.7 1.000 10.80 J71408-4155-5 Dome JE Pistons In stock
301428 4.155 4.000 6.000 9.000 76.0 12.9 1.000 10.80 J71408-4155-5 Dome JE Pistons In stock
301428 4.155 4.000 6.000 9.000 64.0 15.2 1.000 10.80 J71408-4155-5 Dome JE Pistons In stock
322564 4.155 3.750 6.000 9.000 64.0 14.8 1.125 13.00 JG7708-4155-5 Dome JE Pistons Back Order
322564 4.155 3.750 6.000 9.000 58.0 16.3 1.125 13.00 JG7708-4155-5 Dome JE Pistons Back Order
322564 4.155 3.750 6.000 9.000 76.0 12.5 1.125 13.00 JG7708-4155-5 Dome JE Pistons Back Order
301451 4.165 3.875 6.000 9.000 58.0 16.2 1.062 10.80 J71408-4165-5 Dome JE Pistons Back Order
301451 4.165 3.875 6.000 9.000 64.0 14.8 1.062 10.80 J71408-4165-5 Dome JE Pistons Back Order
301451 4.165 3.875 6.000 9.000 76.0 12.6 1.062 10.80 J71408-4165-5 Dome JE Pistons Back Order
301447 4.130 3.875 6.000 9.000 76.0 12.4 1.062 10.80 J71408-4130-5 Dome JE Pistons In stock
301447 4.130 3.875 6.000 9.000 58.0 16.0 1.062 10.80 J71408-4130-5 Dome JE Pistons In stock
301447 4.130 3.875 6.000 9.000 64.0 14.6 1.062 10.80 J71408-4130-5 Dome JE Pistons In stock
301464 4.145 3.800 6.000 9.000 58.0 15.8 1.100 10.80 J71408-4145-5 Dome JE Pistons Back Order
301464 4.145 3.800 6.000 9.000 76.0 12.3 1.100 10.80 J71408-4145-5 Dome JE Pistons Back Order
301464 4.145 3.800 6.000 9.000 64.0 14.4 1.100 10.80 J71408-4145-5 Dome JE Pistons Back Order
322532 4.035 3.500 6.000 9.000 76.0 11.3 1.250 10.80 J714F8-4030-5 Dome JE Pistons Back Order
322532 4.035 3.500 6.000 9.000 64.0 13.4 1.250 10.80 J714F8-4030-5 Dome JE Pistons Back Order
322532 4.035 3.500 6.000 9.000 58.0 14.7 1.250 10.80 J714F8-4030-5 Dome JE Pistons Back Order
322565 4.165 3.750 6.000 9.000 64.0 14.8 1.125 13.00 JG7708-4165-5 Dome JE Pistons Back Order
322565 4.165 3.750 6.000 9.000 58.0 16.3 1.125 13.00 JG7708-4165-5 Dome JE Pistons Back Order
322565 4.165 3.750 6.000 9.000 76.0 12.5 1.125 13.00 JG7708-4165-5 Dome JE Pistons Back Order
301445 4.125 3.875 6.000 9.000 76.0 12.4 1.062 10.80 J71408-4125-5 Dome JE Pistons Back Order
301445 4.125 3.875 6.000 9.000 58.0 16.0 1.062 10.80 J71408-4125-5 Dome JE Pistons Back Order
301445 4.125 3.875 6.000 9.000 64.0 14.6 1.062 10.80 J71408-4125-5 Dome JE Pistons Back Order
301476 4.130 3.750 6.000 9.000 76.0 12.0 1.125 10.80 J70108-4130-5 Dome JE Pistons Back Order
301476 4.130 3.750 6.000 9.000 64.0 14.1 1.125 10.80 J70108-4130-5 Dome JE Pistons Back Order
301476 4.130 3.750 6.000 9.000 58.0 15.5 1.125 10.80 J70108-4130-5 Dome JE Pistons Back Order
301465 4.155 3.800 6.000 9.000 76.0 12.4 1.100 10.80 J71408-4155-5 Dome JE Pistons Back Order
301465 4.155 3.800 6.000 9.000 64.0 14.5 1.100 10.80 J71408-4155-5 Dome JE Pistons Back Order
301465 4.155 3.800 6.000 9.000 58.0 15.9 1.100 10.80 J71408-4155-5 Dome JE Pistons Back Order
322533 4.040 3.500 6.000 9.000 76.0 11.3 1.250 13.50 J714F8-4040-5 Dome JE Pistons Back Order
322533 4.040 3.500 6.000 9.000 64.0 13.4 1.250 13.50 J714F8-4040-5 Dome JE Pistons Back Order
322533 4.040 3.500 6.000 9.000 58.0 14.8 1.250 13.50 J714F8-4040-5 Dome JE Pistons Back Order
301475 4.125 3.750 6.000 9.000 76.0 12.0 1.125 10.80 J71408-4125-5 Dome JE Pistons In stock
301475 4.125 3.750 6.000 9.000 64.0 14.1 1.125 10.80 J71408-4125-5 Dome JE Pistons In stock
301475 4.125 3.750 6.000 9.000 58.0 15.5 1.125 10.80 J71408-4125-5 Dome JE Pistons In stock
301463 4.125 3.800 6.000 9.000 64.0 14.3 1.100 10.80 J71408-4125-5 Dome JE Pistons Back Order
301463 4.125 3.800 6.000 9.000 58.0 15.7 1.100 10.80 J71408-4125-5 Dome JE Pistons Back Order
301463 4.125 3.800 6.000 9.000 76.0 12.2 1.100 10.80 J71408-4125-5 Dome JE Pistons Back Order
301479 4.165 3.750 6.000 9.000 58.0 15.7 1.125 10.80 J71408-4165-5 Dome JE Pistons Back Order
301479 4.165 3.750 6.000 9.000 64.0 14.3 1.125 10.80 J71408-4165-5 Dome JE Pistons Back Order
301479 4.165 3.750 6.000 9.000 76.0 12.2 1.125 10.80 J71408-4165-5 Dome JE Pistons Back Order
322534 4.060 3.500 6.000 9.000 64.0 13.5 1.250 13.50 J714F8-4060-5 Dome JE Pistons Back Order
322534 4.060 3.500 6.000 9.000 58.0 14.9 1.250 13.50 J714F8-4060-5 Dome JE Pistons Back Order
322534 4.060 3.500 6.000 9.000 76.0 11.4 1.250 13.50 J714F8-4060-5 Dome JE Pistons Back Order
301453 4.185 3.875 6.000 9.000 76.0 12.7 1.062 10.80 J71408-4185-5 Dome JE Pistons Back Order
301453 4.185 3.875 6.000 9.000 64.0 14.9 1.062 10.80 J71408-4185-5 Dome JE Pistons Back Order
301453 4.185 3.875 6.000 9.000 58.0 16.3 1.062 10.80 J71408-4185-5 Dome JE Pistons Back Order
301466 4.165 3.800 6.000 9.000 76.0 12.5 1.100 10.80 J71408-4165-5 Dome JE Pistons Back Order
301466 4.165 3.800 6.000 9.000 58.0 16.0 1.100 10.80 J71408-4165-5 Dome JE Pistons Back Order
301466 4.165 3.800 6.000 9.000 64.0 14.6 1.100 10.80 J71408-4165-5 Dome JE Pistons Back Order
301477 4.145 3.750 6.000 9.000 76.0 12.1 1.125 10.80 J71408-4145-5 Dome JE Pistons In stock
301477 4.145 3.750 6.000 9.000 58.0 15.6 1.125 10.80 J71408-4145-5 Dome JE Pistons In stock
301477 4.145 3.750 6.000 9.000 64.0 14.2 1.125 10.80 J71408-4145-5 Dome JE Pistons In stock
322530 4.020 3.500 6.000 9.000 58.0 14.6 1.250 13.50 J71408-4020-5 Dome JE Pistons Back Order
322530 4.020 3.500 6.000 9.000 76.0 11.2 1.250 13.50 J71408-4020-5 Dome JE Pistons Back Order
322530 4.020 3.500 6.000 9.000 64.0 13.2 1.250 13.50 J71408-4020-5 Dome JE Pistons Back Order
322531 4.030 3.500 6.000 9.000 76.0 11.3 1.250 13.50 J714F8-4030-5 Dome JE Pistons Back Order
322531 4.030 3.500 6.000 9.000 58.0 14.7 1.250 13.50 J714F8-4030-5 Dome JE Pistons Back Order
322531 4.030 3.500 6.000 9.000 64.0 13.3 1.250 13.50 J714F8-4030-5 Dome JE Pistons Back Order
322529 4.000 3.500 6.000 9.000 64.0 13.1 1.250 13.50 JG7708-4000-5 Dome JE Pistons Back Order
322529 4.000 3.500 6.000 9.000 76.0 11.1 1.250 13.50 JG7708-4000-5 Dome JE Pistons Back Order
322529 4.000 3.500 6.000 9.000 58.0 14.5 1.250 13.50 JG7708-4000-5 Dome JE Pistons Back Order
301426 4.125 4.000 6.000 9.000 76.0 12.7 1.000 10.80 J71408-4125-5 Dome JE Pistons Back Order
301426 4.125 4.000 6.000 9.000 58.0 16.5 1.000 10.80 J71408-4125-5 Dome JE Pistons Back Order
301426 4.125 4.000 6.000 9.000 64.0 15.0 1.000 10.80 J71408-4125-5 Dome JE Pistons Back Order