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Old 12-07-2004, 09:42 AM
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Default 500hp Vs 500efi Heads
Is there any difference in the heads between a carbed HP500 and the 500Efi? I dropped an exhaust valve in one of my efis and need a set of heads for it, but wasn't sure if they were interchangeable? thanks
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Old 12-07-2004, 12:40 PM
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Default Re: 500hp Vs 500efi Heads
Would they be the same castings as used for a 502 EFI ?? I have 2 motors I am rebuilding and I am considering going to aluminum heads. I would be willing to sell them if so.
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Old 12-07-2004, 07:51 PM
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Default Re: 500hp Vs 500efi Heads
What do you mean 502 EFI?

502 MPI?
500EFI?
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Old 12-07-2004, 08:26 PM
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Default Re: 500hp Vs 500efi Heads
Sorry for the confusion--- 502 Magnum MPI

I work in the automotive field and all fuel injection is referred to as EFI. Sorry!!!
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Old 12-07-2004, 08:35 PM
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Default Re: 500hp Vs 500efi Heads
The HP's have larger valves than the MPI's do. The HP's have .230 intake valves I think.

Ron
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Old 12-08-2004, 07:28 PM
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Default Re: 500hp Vs 500efi Heads
I have two sets of 088 heads from my HP 500 (carb) motors for sale. PM me if interested. Jeff
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