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Re: Something doesn't add up....... 5.3 into 72 elco
Were risking confusion with the "Gen" thing, because Gen IV motors aren't in 4th Gen Fbodies...if that makes any sense.
The 4th Gen Fbody is a Gen III engine, and early ones use a header-style manifold that is fairly thin and clears some swaps pretty well, but the 02 sensor location may not clear the frame depending on how its set in the frame.
The 5th Gen Camaro is a Gen IV motor, and uses a very tight-to-the-block manifold that has become popular for swaps for its block hugging.
Both can be made to work, but there are differences in flange location and clearance etc.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING 
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