JE Piston
JE Pistons LS Asymmetric DOME Set of 8 Pistons - 312103 GM LSX LS7 FSR 4.155 BORE
Regular price
$978.02
Shipping calculated at checkout.
Part #: jep312103
JE Pistons new GM LS Inverted dome 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, JE pistons are machined for 1.2mm, 1.5mm, 3.0mm rings. Combination 12° & 15° Valve Pockets
Includes:Accumulator Grooves
Double Pin Oilers
Offset Wrist Pin
Pin #927-2250-15-51C (106g)
Round Wire Locks # 927-073-MW
Compression Ratio:
64cc 13.2:1
68cc 12.5:1
70cc 12.2:1
Includes:
Compression Ratio:
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