Full size Tahoe most likely will come with a 5.3 liter. Factory 320 HP, you could probably bump that up to around 350 with headers and dual exhaust, cold air intake and computer tuning. The heads should fit an early model block but not just any intake will fit the heads. As for the transmission it will still work in your 2 wd if I am not mistaken just remove the transfer case, install tailhousing. Gas mileage, fuel injection, overdrive, new engine.
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67 SWB In Progress, one piece at a time, maybe 3 years I will be finished
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