MACE TRUNNION UPGRADE KIT TO SUIT HSV LS1 LS2 LS3 LS7 LS9 LSA SUPERCHARGED 5.7L 6.0L 6.2L 7.0L V8Now have the peace of mind for your LS V8 with our very own, designed in house, Mace Engineering LS trunnion upgrade kit. These trunnion kits replace the factory LS rocker internals that are prone to failure when exposed to extended levels of high rpm, high valve spring pressures and amplified rotation from high lift camshafts. The OE needle bearing housings can begin to separate from the rocker arm when exposed to these conditions, gradually spitting
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