350/400 Tour Series Gas Ported

Similar to the Ultra Light GP, this piston has undergone engineering changes to handle higher horsepower 4-barrel applications (approximately 650 hp) and angle milled heads. Both 350 and 400 series accept oversize valves (intake pocket is 2.255" and the exhaust pocket is 1.870") and long duration, tight lobe separation cams. The ring grooves are precision machined for .043, .043, 3mm back cut rings with lateral gas ports for superior ring seal.

Includes:

  • Lateral Gas Ports
  • Contact Reduction Grooves
  • Double Spiro Locks #927-042-CS
  • Double Pin Oilers
Part # Bore Stroke Rod Deck Head CC Comp. Ratio Comp. Height Crown Vol. Ring Set Head Type Series Stock Action
170697 4.030 3.750 6.000 9.000 58.0 11.9 1.125 -4.10 J71408-4030-5 Flat Top JE Pistons In stock
170697 4.030 3.750 6.000 9.000 64.0 11.1 1.125 -4.10 J71408-4030-5 Flat Top JE Pistons In stock
170697 4.030 3.500 6.125 9.000 64.0 10.3 1.125 -4.10 J71408-4030-5 Flat Top JE Pistons In stock
170697 4.030 3.500 6.125 9.000 76.0 9.1 1.125 -4.10 J71408-4030-5 Flat Top JE Pistons In stock
170697 4.030 3.500 6.125 9.000 58.0 11.2 1.125 -4.10 J71408-4030-5 Flat Top JE Pistons In stock
170697 4.030 3.750 6.000 9.000 76.0 9.7 1.125 -4.10 J71408-4030-5 Flat Top JE Pistons In stock
170691 4.060 3.500 5.700 9.000 64.0 10.3 1.550 -4.10 J71408-4060-5 Flat Top JE Pistons Back Order
170691 4.060 3.500 5.700 9.000 76.0 9.1 1.550 -4.10 J71408-4060-5 Flat Top JE Pistons Back Order
170691 4.060 3.500 5.700 9.000 58.0 11.2 1.550 -4.10 J71408-4060-5 Flat Top JE Pistons Back Order
170695 4.030 3.500 6.250 9.000 64.0 10.3 1.000 -4.10 J71408-4030-5 Flat Top JE Pistons Back Order
170695 4.030 3.500 6.250 9.000 58.0 11.2 1.000 -4.10 J71408-4030-5 Flat Top JE Pistons Back Order
170695 4.030 3.500 6.250 9.000 76.0 9.1 1.000 -4.10 J71408-4030-5 Flat Top JE Pistons Back Order
170690 4.040 3.500 5.700 9.000 64.0 10.3 1.550 -4.10 J71408-4040-5 Flat Top JE Pistons In stock
170690 4.040 3.500 5.700 9.000 76.0 9.1 1.550 -4.10 J71408-4040-5 Flat Top JE Pistons In stock
170690 4.040 3.500 5.700 9.000 58.0 11.2 1.550 -4.10 J71408-4040-5 Flat Top JE Pistons In stock
170694 4.060 3.500 6.000 9.000 76.0 9.1 1.250 -4.10 J71408-4060-5 Flat Top JE Pistons In stock
170694 4.060 3.500 6.000 9.000 58.0 11.2 1.250 -4.10 J71408-4060-5 Flat Top JE Pistons In stock
170694 4.060 3.500 6.000 9.000 64.0 10.3 1.250 -4.10 J71408-4060-5 Flat Top JE Pistons In stock
170693 4.040 3.500 6.000 9.000 76.0 9.1 1.250 -4.10 J71408-4040-5 Flat Top JE Pistons In stock
170693 4.040 3.500 6.000 9.000 58.0 11.2 1.250 -4.10 J71408-4040-5 Flat Top JE Pistons In stock
170693 4.040 3.500 6.000 9.000 64.0 10.3 1.250 -4.10 J71408-4040-5 Flat Top JE Pistons In stock
170689 4.030 3.500 5.700 9.000 64.0 10.3 1.550 -4.10 J71408-4030-5 Flat Top JE Pistons Back Order
170689 4.030 3.500 5.700 9.000 76.0 9.1 1.550 -4.10 J71408-4030-5 Flat Top JE Pistons Back Order
170689 4.030 3.500 5.700 9.000 58.0 11.2 1.550 -4.10 J71408-4030-5 Flat Top JE Pistons Back Order
181933 4.155 3.750 6.000 9.000 76.0 10.2 1.125 -5.00 J71408-4155-5 Flat Top JE Pistons In stock
181933 4.155 3.750 6.000 9.000 64.0 11.6 1.125 -5.00 J71408-4155-5 Flat Top JE Pistons In stock
181933 4.155 3.500 6.125 9.000 58.0 11.7 1.125 -5.00 J71408-4155-5 Flat Top JE Pistons In stock
181933 4.155 3.500 6.125 9.000 64.0 10.9 1.125 -5.00 J71408-4155-5 Flat Top JE Pistons In stock
181933 4.155 3.750 6.000 9.000 58.0 12.5 1.125 -5.00 J71408-4155-5 Flat Top JE Pistons In stock
181933 4.155 3.500 6.125 9.000 76.0 9.6 1.125 -5.00 J71408-4155-5 Flat Top JE Pistons In stock
170698 4.040 3.750 6.000 9.000 58.0 11.9 1.125 -4.10 J71408-4040-5 Flat Top JE Pistons Back Order
170698 4.040 3.750 6.000 9.000 64.0 11.1 1.125 -4.10 J71408-4040-5 Flat Top JE Pistons Back Order
170698 4.040 3.500 6.125 9.000 64.0 10.3 1.125 -4.10 J71408-4040-5 Flat Top JE Pistons Back Order
170698 4.040 3.500 6.125 9.000 76.0 9.1 1.125 -4.10 J71408-4040-5 Flat Top JE Pistons Back Order
170698 4.040 3.500 6.125 9.000 58.0 11.2 1.125 -4.10 J71408-4040-5 Flat Top JE Pistons Back Order
170698 4.040 3.750 6.000 9.000 76.0 9.7 1.125 -4.10 J71408-4040-5 Flat Top JE Pistons Back Order
170692 4.030 3.500 6.000 9.000 76.0 9.1 1.250 -4.10 J71408-4030-5 Flat Top JE Pistons In stock
170692 4.030 3.500 6.000 9.000 58.0 11.2 1.250 -4.10 J71408-4030-5 Flat Top JE Pistons In stock
170692 4.030 3.500 6.000 9.000 64.0 10.3 1.250 -4.10 J71408-4030-5 Flat Top JE Pistons In stock
170696 4.040 3.500 6.250 9.000 64.0 10.3 1.000 -4.10 J71408-4040-5 Flat Top JE Pistons Back Order
170696 4.040 3.500 6.250 9.000 58.0 11.2 1.000 -4.10 J71408-4040-5 Flat Top JE Pistons Back Order
170696 4.040 3.500 6.250 9.000 76.0 9.1 1.000 -4.10 J71408-4040-5 Flat Top JE Pistons Back Order