Supposedly IA II aluminum Pontiac blocks are barely if any lighter than a stock block, a lot stronger though. So I've wondered how much weight could be shaved off.
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67, 68, 69 & 72 Firebirds, 79 TA, 89 GTA, 01 WS6, 68 Camaro, 68 Mustang, 54 GMC awd turbo, 67 GMC
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