Hi guys. I am going to install a 94 model 5.8 engine in my 72 GT and need some advice on few things. First of all, i was wandering what oil pan i should go for. I dont know enough about the later small block fords to be sure if there's a difference between them and the old ones. I know that my W has larger main bearings than the 302 mains, but im not sure if the rear seal is any different from one model to another. So #1, advice on the pan. Second thing, i am well aware of the header fitment issue, and am also aware of that on this message board there has been a lot of discussions about that particular issue. I might be capable of making my own pair if anyone has got blueprints or some points. #2 advice on headers Other thing, i would prefer my mercury to be with a manual trans, but all I got is the standard 3 speed with floor shifter. Is it strong enough to handle a hot 5.8 or is there any known trouble with this trans that I am not aware of? And finally, I'v got a rebuilt 9 inch with 4. 88 gears and locker. Am i able to go any faster than about 50 miles with the 3speed/9inch combo? p.s I live in Iceland so I hope you can forgive my grammar...
You need a front sump oil pan. All 351W pans interchange so that's a good thing. more info: http://mmb.maverick.to/showthread.php?t=59579&highlight=351+swap
if the 3 speed isn't modified I don't see it surviving long running over 300hp. beef it up or go with t5.
You cant use a 302 oil pan on a 351W...Pan rails are farther apart on the 351. IE: 351 pan is wider from side to side.
ok thanks guys. But could you point me at some good info or convertion chart where I can find out how tall gears I would have if I'd run, say 29 or 30 inch tyres compared to the original 8 inch rear? And finally, should the original 8 inch handle my fresh 5.8? Kveðja Sævar P
Got myself a T5, but im lacking the proper bellhousing to go with my 5.8. Also, the trans did not have a shifter. Is there anyone there who's got a spare or can direct me to some site i can purchase one?
but about the diffrence in pans (302 vs 351), I've done a little work before on my friend in a 302-to-351 mod, and we did'nt have any time to find a proper pan, so we cut both pans in half and welded the 351 seat to the 302 sump, and I dont recall any trouble with that at all..
t-5 shifter can be got just about anywhere. Just order a short throw shifter for a 1987 mustang, handle I'm not sure, I have a old B M in mine off of god only knows what, but my stock mustang shifter looks like it will fit and feel better to me.
