Browning Posted November 14, 2010 Report Share Posted November 14, 2010 Can I just put an intake manifold and up from a vortec onto a regular 4.3 or are there a lot of things I would need? Quote Link to comment Share on other sites More sharing options...
3.1cutlass Posted November 14, 2010 Report Share Posted November 14, 2010 I think the heads might be different. I'm not 100% sure. Quote Link to comment Share on other sites More sharing options...
Browning Posted November 14, 2010 Author Report Share Posted November 14, 2010 I have been searching and keep seeing some posts saying that the heads would need changed then I see some saying all 4.3's from mid 80's up had the same heads, and that I would need only need to swap out the injection setup. I found some one wanting to trade me a 92 4.3 with 80,000 miles. Said it's not vortec. I need a vortec engine for my mothers 94 bravada. If I can just swap over a few things I may get it. Quote Link to comment Share on other sites More sharing options...
TA In Progress Posted November 14, 2010 Report Share Posted November 14, 2010 Heads are different. Vortec also had a balance shaft. Quote Link to comment Share on other sites More sharing options...
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