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Unread 12-03-2010   #1 (permalink)
82Capri50 is offline Rookie

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Default gt40 heads on 1982 5.0 HO

I am considering gt40 heads for this 1982 5.0 HO engine I am rebuilding. I have located a set that will be a long drive for me to go get. I need to know about the accessorie bolt holes that the a/c compressor,etc mounts up to on the cylinder heads. Does anyone know if the gt40 heads have the holes in the same location as the original? Also the air pump holes in the rear of the heads. I want to do away with this ugly looking stuff. Is there an idler pulley to replace the air pump?
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Unread 12-03-2010   #2 (permalink)
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Originally Posted by 82Capri50 View Post
I am considering gt40 heads for this 1982 5.0 HO engine I am rebuilding. I have located a set that will be a long drive for me to go get. I need to know about the accessorie bolt holes that the a/c compressor,etc mounts up to on the cylinder heads. Does anyone know if the gt40 heads have the holes in the same location as the original? Also the air pump holes in the rear of the heads. I want to do away with this ugly looking stuff. Is there an idler pulley to replace the air pump?
Acc. holes should be the same.
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Unread 12-03-2010   #3 (permalink)
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Save your time and $ get some Edelbrock or TFS heads
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Unread 12-04-2010   #4 (permalink)
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Save your time and $ get some Edelbrock or TFS heads
definitly the route to go
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Unread 12-04-2010   #5 (permalink)
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i may be wrong but i don't think gt40 head will fit on and 82 bottom end b/c the pistons don't have valve relief cuts. something u may want to look at first
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Unread 12-06-2010   #6 (permalink)
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The original pistons do have valve reliefs in them. I will talk with the machine shop concerning this to make sure this isn't an issue. Thanks for raising the flag. I ran across a reasonably priced set of rebuilt heads that are set up for the lift of the trickflow stage 1 cam and probably will go this set up. From what I have read this seems to be a decent performing set up for the money. All comments are appreciated.
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