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This Genuine GM Cylinder Head Assembly (Rectangle Port) is compatible with LS3, L98, L76, and L77 engines. Designed and tested by industry experts, this assembly will provide superior results for your vehicle.
Enhance the performance of LS2 engines equipped with cathedral port heads with this Genuine GM Cylinder Head Assembly (Rectangle Port) 12675871. Please note that an intake manifold change will be necessary to accommodate this upgrade.