4.3 Y-Pipe bolt up to a 5.3?
09-20-2010, 03:05 PM
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Staging Lane
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4.3 Y-Pipe bolt up to a 5.3?
Does anyone know for sure? My 5.3 is out of an Envoy, but the manifolds look to be the same as the LM7 ones (although they do have diff p/n's)...my Y-pipe doesn't even match the illustration of the 4.3 pipe when I looked to see if there was a p/n to compare. It did match the 5.3 one identically, at least visually... What chance do I have of these things mating up? I ask because it'd be a whole lot easier to cut the downpipes while the 4.3 is out...
09-20-2010, 03:12 PM
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as long as the 5.3 manifolds are the same as the truck ones then yes they will bolt up... might have to help them a little but they will bolt directly up to STOCK manifolds no problem...
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