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-   Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W) (https://www.ford-trucks.com/forums/forum55/)
-   -   I gambled and maybe I (https://www.ford-trucks.com/forums/1503670-i-gambled-and-maybe-i.html)

schoo 08-16-2017 10:56 AM

I gambled and maybe I
 
I have a 49 f1 I got a 89 e250 302/efi for a donor it had a lot of miles so it's got low oil pressure 6-9 psi (15-50 oil)at idle and makes a little noise at start up rear main oil leak. So I'd like to know what your opinion is for replacing, rebuild or ?
I would like 200 plus hp should I do it myself with your help, just get a crate from who any ideas
https://cimg7.ibsrv.net/gimg/www.for...5ff5a91d59.jpg

Glaser67 08-16-2017 12:07 PM


Originally Posted by schoo (Post 17400343)
I have a 49 f1 I got a 89 e250 302/efi for a donor it had a lot of miles so it's got low oil pressure 6-9 psi (15-50 oil)at idle and makes a little noise at start up rear main oil leak. So I'd like to know what your opinion is for replacing, rebuild or ?
I would like 200 plus hp should I do it myself with your help, just get a crate from who any ideas
https://cimg7.ibsrv.net/gimg/www.for...5ff5a91d59.jpg

How many miles are on it? What's your budget and how deep are you willing to go inside the motor?

schoo 08-16-2017 12:59 PM

guessing 200k
budget is low but no junk that's why low hp 200+
I what to use this FI if I can and computer save $
stock + a little don't really need headers

Turd-250 08-16-2017 01:56 PM

didn't the early efi 302s make about 180hp stock? i bet a few bolt-ons will get you there.
sub'd! i'm very interested in this project! both because i'm going to restore a 49 f1 with my dad and i'm putting a 302 in my baby ranger lol

schoo 08-16-2017 02:38 PM

thinking aluminum heads for less weight on the front end not so much for power does that make any sense

Turd-250 08-16-2017 03:43 PM

hmmm i figure the weight savings would only be around 40 lbs for both heads. those are expensive i think, over $500 for a set maybe?

Conanski 08-16-2017 06:56 PM

You don't need heads to break 200hp just a cam. I say strip it down and send out the longblock to a machine shop, If you can find a decent shop that will work with you and just do the work that the parts need(these Ford blocks don't need line boring or decking), then you will just have to spend money on bearing surfaces, bores and valve guides. Then put it together with an aftermarket EFI friendly flat tappet cam like the 31-255-5, or convert it to a roller setup with valvetrain parts(cam. lifters, pushrods, spider) salvaged from a '94+ junkyard truck motor or 5.0HO, and you will have 250hp give or take as long as the exhaust system isn't a complete cork.

schoo 08-16-2017 07:27 PM

I was hoping you would say something Conan I would like a roller cam, I could get headers but I don't want noise in the front it's not very noisy now without carpet and want to keep it that way. As for aluminum heads it would be more for bringing the wieght down on the front and 40# is going to make up the ac I added although not mandatory

Conanski 08-16-2017 09:08 PM

With aftermarket heads and a cam you will have trouble not making 300+ hp. Terrible problem to have I know.. LOL. Oh.. stock exhaust manifolds will strangle it just enough perhaps.

schoo 08-16-2017 09:46 PM

Thanks for the directions something for this winter

Rusty96 08-23-2017 01:32 PM

Why not just find a good running 351 out of a fuel injected truck and drop it in? No rebuild and it's over 200hp. The 351 will typically swap right out with a 302.

schoo 08-28-2017 09:00 PM


Originally Posted by Rusty96 (Post 17417027)
Why not just find a good running 351 out of a fuel injected truck and drop it in? No rebuild and it's over 200hp. The 351 will typically swap right out with a 302.

I think the heads are a little bigger on the 351 and I have a tight fit now

xlt4wd90 08-29-2017 02:57 AM

The heads are the same size; the 351 block is about 1.5" wider on each side than the 302. So yes, if you had fitment issues with a 302, it would be worse with a 351.

Beanscoot 08-29-2017 10:47 AM

I think the 351W is an inch and a half wider total, not on each side. Still, this is enough to cause problems with smaller engine bays.


Plus, Schoo wants to keep the front end weight down.

schoo 09-17-2017 11:52 AM

Another question on this 302 my engine is from a 1989 Efi would like to keep the efi and the pcm so if I change to a roller cam change does that change the firing order to 137 From 154 and then do I change the pcm and the map and FI
By the way I probably dropping the aluminum heads to much $$


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