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Discussion Starter · #1 ·
Well I finally got my 351w block back from the engine shop that cleaned and balanced it for me. The engine came from a 84 pickup. I was hoping to be able use the heads but after inspection there were small cracks that the engine shop said would give me problems with down the road. So now i need to ask if I go ahead and purchase some nice new heads will it mess up my configuration. My Bronco is a 91 with SD. I had found the intake parts from a 5.8 and was going to use it and the egine and heads from the 84 pickup which was carbed. After reading posts on here i'm not sure if putting aftermarket heads will give my SD system problems. My other option is to look for junk yard heads and hope they are in good shape. I do like the idea of having better exhaust flow with aftermarket or GT-40 heads but don't want to make things to complicated.
 

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Ex Navy Nuke
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5,421 Posts
Look at my superford page on my 351 build up. I used aluminum Trick Flow Twisted Wedge heads and just about every after market engine upgrade you can think of and I'm running SD and it runs great. As long as you stay with a SD friendly cam and don't stroke it out to a higher displacement then SD will be fine.
 

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The Anti Yam!
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22,674 Posts
As long as you dont go crasy with the heads it will be fine. It's the cam you got to worry about, stay above 114* LSA.

The factory 5.8 EFI intake is a peice, toss it.

Are you converting from a 5.0 or just swapping out 5.8s?
 

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Discussion Starter · #4 ·
I'm converting over from a worn out 5.0. Now that everyone says my use of aftermarket heads I guess I will be searching for a good aftermarket intake setup. Any suggestion?????????
 
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