2002 Blazer LS Factory 5 speed 4.3l. Now has a brand new 389″ SBC with Comp Cams Mutha Thumpr Camshaft w/ 1.6 Roller Rockers, Comp Cams lifters, and Bee Hive springs.10.8:1 comp. Air Gap intake w/ 750DP, 1 3/4 inch headers 2.5 inch dual exhaust. Aluminum 200cc 2.02/1.60 valves 64 cc chamber. .60 Forged Full Floating flat top pistons and forged I-beam rods. Internally balanced.
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