differences in the 302
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differences in the 302
hello i new here . and i have question about the 302. i just got a 1992 e-150 with 315000miles for free. now i have inspected the engine and it has been thrusted out. bascially you can gab the harmonic balance and it moves horazonally about 1/8 or more of an inch. how old of a 302 can i put in the vehicle? what yrs were rollercams and are the heads different from old yr engines to the 1992 302? i now alot about chevy engines but not that much on the 302 specs. can i run a set of e7t--- heads on my 302?
Lancer
Lancer
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Any 302/5.0 will go in there but to get the best factory cam you wany a '94+ truck motor. Most truck motors from '92 up have a roller cam but the earlier cam is more restrictive. All truck motors from 1987 on should have E7TE heads but there were a few exceptions. A car 5.0 will also go in there with the truck intake, oilpan, and pickup swapped on, but the passenger car motors were really low output(150hp) with the worst SBF head ever made(E6SE) so avoid if possible. A Mustang/Capri/Lincoln Mk7 5.0HO will also work with the truck parts swapped on, the different firing order on the HO motors makes no difference either, the plug wires simply have to be routed appropriately.
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Sweet thank you guys so much for your help. Now to find a 94 and up 302 from a truck with the e7te heads. or find a 5.0HO motor from a mustang/capri/lincoln mk7. Will the 94+ engine run ok with the 92 ecm or will i need to get a 94+ ecm? I do not have to worry about emissions as I live at 10,800ft. I have even thought about going the stroker 347 build. Not sure which way I want to go with the van yet. Just starting to get all the info before i start building the engine.
Lancer
Lancer
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From: Columbus, GA USA
Now you are looking at an aftermarket engine management system.
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The build is going to boil down to how much I want to spend. With the 347 build definatly going to need engine managment to use FI. Either way i decide to go. I will definatly balance engine,torque hone the cylinders after being board.030 over.most the money will go in to cam and head work. I think that I am going to build the engine to just at the point the factory computer can handle all the engine systems. As for cams any ideas? i kinda like comp cams, but open to any and all suggestions.
Lancer
Lancer
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One 302 to look for is the one in the Explorer. Not sure of what years but the later ones came with a version of the GT-40 head that the Cobra Mustang used. There was an even later edition using the GT-40P heads. The problem with there heads if the spark plugs were positioned differently and the exhaust manifolds are spicific to this head.
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Unfortunately some of the things that change often make any other EEC incompatable.. SEFI versus batch, MAF vs SD, E4OD vs 4R70w, so it's always better to retain the existing computer if at all possible.
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If that's the case then I'd suggest you simply go find a 5.8 and build it to stock specs, it will bolt right in where your 5.0 is and run like it was always there as long as you also plug in a 5.8 EEC.
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I believe you misunderstood me.
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I don't think so but correct me if I did. I intrepreted your post as saying the computer from a donor vehicle would be the one to use with the donor motor. And my point was that there's a good chance that computer would not be compatable with his truck due to transmissions of EFI system differences.
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You didn't misunderstand me.
But I can tell you this. It can go both ways, depending on the application. From my experience, when we would do a swap we'd try to get one with the same tranny and such, then we could use the existing PCM. If there were too many changes, i.e. pushrod to SOCH then we'd use the donor PCM. If the donor PCM is available and all is the same, I still choose to use the donor PCM.
But I can tell you this. It can go both ways, depending on the application. From my experience, when we would do a swap we'd try to get one with the same tranny and such, then we could use the existing PCM. If there were too many changes, i.e. pushrod to SOCH then we'd use the donor PCM. If the donor PCM is available and all is the same, I still choose to use the donor PCM.
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gt-40 heads would be bad ---. I will have to look on alldata to check for what yr exploder with a 302 came with the gt-40 heads. Ford might have used those heads in limited vehicles like police crusiers. If the alldata has no info I'm going to call our ford and have them check for me. Ok a 5.8L ford is the 351cid engine right? And if so all i would need is the EEC = PCM right? It will just plug into the 5.0L engine harness? Also what kind of performance upgrades could I build into the 5.8L and still use the factory computer.
Lancer
Lancer