JE LS ASYM -5cc Flat Top Pistons (3.622 Stroke, 4.005 bore, 6.125 rods) 311962

Product Code: 311962
Availability: In Stock
$952.34 $1,007.77

Available Options

GM LS Flat Top Our brand new 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.

Accumulator Grooves
Double Pin Oilers
Offset Wrist Pin
Pin #927-2250 For use with 6.125” Rod Length
Round Wire Locks # 927-073-MW

Rings Sold Separately - Option to add JG3108-4000-7 +$150  (4.000+7 Bore, File Fit, 1.2, 1.5, 3mm Ring Pak, Low Tension Oil Rings) 

*** LSA & LS9 Engines require oil squirter location modification for clearance. ***

Bore Size
Crankshaft Stroke
Rod Length
Piston Type
-5cc Flat Top 
Compression Height
Piston Material
2618 Forged 
Piston Ring Size

1.2mm, 1.5mm, 3mm Rings (NOT Included) 

Wrist Pin Size
.927 Pins
Valve Pocket Combination 12 degree (LS7 only) and 15 degree Valve Pockets

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