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JE 311979L Piston Single FSR (4.030 in. Bore, 1.115 in. CH, -5.00 CC) for GM LS Engine ymm_31 Cylinder Head: GM LS1 15 ymm_23
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Description
JE 311979L Piston Single FSR (4.030 in. Bore, 1.115 in. CH, 5.00 CC) for GM LS Engine ymm_31 Cylinder Head: GM LS1 15 ymm_23 Cylinder Head: GM LS1 15 DEG Description JE 990 2500 15 TSC Wrist Pin (0 Wrist Pin Retainer Included: Yes Proprietary Forged Side Relief design minimizes friction and power loss while reducing skirt width
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