GM PISTONS & RINGS

GM Performance Parts pistons are top quality and are ready for the rigors of high-performance street and competition applications. They’re factory tested, so you know you’re getting the right parts for your LS Series engine. Pistons are sold individually unless otherwise specified.

GM LS SERIES RINGS

Part Number Bore Size Oversize Ring Thicknesses Description
12499234 3.898" — 1.5, 1.5, 2.5mm Set of 8 ring packs, standard size for LS1 & LS6
12499236 4.000" — 1.5, 1.5, 2.5mm Set of 8 ring packs, standard size for 1999-2005 LQ4 & LQ9
12499235 3.780" — 1.5, 1.5, 2.5mm Set of 8 ring packs, standard size for 1999-2005 5.3L engines
89017484 4.000" — 1.2, 1.5, 2.5mm Production ring pack for '05-'06 LS2, '06 L76
88894243 4.000" — 1.5, 1.5, 2.5mm Production ring pack for '05-'06 LQ9
89017776 4.125" — 1.2, 1.2, 2.0mm Production ring pack for '06 LS7
89017777 4.125" +.020" 1.2, 1.2, 2.0mm Oversize LS7 ring pack

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