Gen V LT4

GM LT Asymmetrical FSR

Our Asymmetrical FSR (Forged Side Relief) forging design allows for the use of the most popular stroke and rod combinations while eliminating reluctor wheel clearance problems. Asymmetrical forging design maintains a larger skirt on the heavily stressed major thrust side, while reducing friction with a smaller skirt on the minor thrust side. The result is a high strength, lightweight piston that significantly reduces friction in your engine. Lightweight and extremely durable, these pistons are machined for 1.2mm, 1.5mm, 3.0mm rings.

Features:

  • Accumulator Grooves
  • Double Pin Oilers
  • Offset Wrist Pin

Includes:

  • Pin #927-2250 Pin for use with 6.125” Rod Length
  • Round Wire Locks # 927-073-MW

*Rings Sold Separately*

Part # Bore Stroke Rod Deck Head CC Comp. Ratio Comp. Height Crown Vol. Ring Set Head Type Series Stock Action
353916 4.075 4.000 6.125 9.240 65.5 10.0 1.105 -15.70 JG3108-4075-5 Inv Dome/Dish JE Pistons Back Order
360791 4.065 3.622 6.125 9.240 65.5 10.0 1.295 -6.30 JG31F8-4070-0 Inv Dome/Dish JE Ultra Series In stock
353913 4.075 3.622 6.125 9.240 65.5 10.0 1.295 JG3108-4075-5 Inv Dome/Dish JE Pistons Back Order
353915 4.070 4.000 6.125 9.240 65.5 10.0 1.105 JG31F8-4070-0 Inv Dome/Dish JE Pistons Back Order
353910 4.075 3.622 6.098 9.240 65.5 10.0 1.320 JG3108-4075-5 Inv Dome/Dish JE Pistons Back Order
353912 4.070 3.622 6.125 9.240 65.5 10.0 1.295 JG31F8-4070-0 Inv Dome/Dish JE Pistons Back Order
360793 4.075 3.622 6.125 9.240 65.5 10.0 1.295 JG3108-4075-5 Inv Dome/Dish JE Ultra Series Back Order
353909 4.070 3.622 6.098 9.240 65.5 10.0 1.320 -6.50 JG31F8-4070-0 Inv Dome/Dish JE Pistons Back Order
353911 4.065 3.622 6.125 9.240 65.5 10.0 1.295 -6.30 JG31F8-4070-0 Inv Dome/Dish JE Pistons Back Order
353914 4.065 4.000 6.125 9.240 65.5 10.0 1.105 -15.30 JG31F8-4070-0 Inv Dome/Dish JE Pistons Back Order
360795 4.065 4.000 6.125 9.240 65.5 10.0 1.105 -15.30 JG31F8-4070-0 Inv Dome/Dish JE Ultra Series Back Order
360792 4.070 3.622 6.125 9.240 65.5 10.0 1.295 -6.50 JG31F8-4070-0 Inv Dome/Dish JE Ultra Series In stock
360797 4.075 4.000 6.125 9.240 65.5 10.0 1.105 JG3108-4075-5 Inv Dome/Dish JE Ultra Series Back Order
360796 4.070 4.000 6.125 9.240 65.5 10.0 1.105 -15.50 JG31F8-4070-0 Inv Dome/Dish JE Ultra Series Back Order
353908 4.065 3.622 6.098 9.240 65.5 10.0 1.320 -6.30 JG31F8-4070-0 Inv Dome/Dish JE Pistons Back Order