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JE Pistons forged piston set for GM LS applications—4.130" bore, 1.115" compression height, 12.40cc dish, set of eight—is built from 2618 forged aluminum in the USA. JE applies its FSR forging, accumulator groove and optional skirt coatings to reduce friction and improve ring seal and durability; these pistons are tailored by application for racing and high-demand engines.
JE Pistons GM LS 4.130in Bore 1.115 CD -12.40cc Dish/Inverted Dome - Set of 8
