need to know differnces between 7.5 EFI heads

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Oct 15, 2004 | 03:29 PM

lisagoud

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need to know differnces between 7.5 EFI heads

Gang,
I have a 1989 F250 460 EFI that let go on me destoying the original E7TE heads. I need to know what differences there are between the E6TE series (which I have located a set of as a possible replacement) and the E7TE series which came on my original motor?

Oct 19, 2004 | 03:45 PM

leadmic

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From: Tulare U.S.A.

The heads you want are E3TEs. They are for 93 and newer 460s. They have a bigger intake valves, larger ports, and a slightly smaller combustion chamber. They flow alot better and will give you just a little more compression. They will bolt on, and every thing will bolt on to them. It should make a diffrence power wise and still work with a stock ECM.
Leadmic

Oct 19, 2004 | 03:57 PM

lisagoud

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Thank-you...I shopuld have mentioned that this is a fuel injected 1989 7.5...Does that make any difference in your reply?

Oct 19, 2004 | 04:02 PM

lisagoud

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Lastly, I assume you mean F3TE due to 1993 usage?

Oct 19, 2004 | 04:24 PM

scottie2hottie

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From: Honkytonkville

If you plan to stay EFI, you'll have to run EFI heads, as they have different shaped intake openings and I believe a different intake angle on them. I don't think year makes a difference as far as them working correctly, but the '93 and newer heads are most desirable. Again, just make sure they're EFI heads!
Scott

Oct 19, 2004 | 04:52 PM

leadmic

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From: Tulare U.S.A.

The F3TE are EFI heads and are interchangable with E7TE heads. And they are F3s not E3s sorry my bad.
Leadmic

Oct 19, 2004 | 05:26 PM

lisagoud

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Thanks everyone for your replies. I cancelled my order for a set of replacement E7TE's and ordered a rebuilt set of F3TE's. Is there Anything else I should be aware of during this swap?