I've been wanting to do this for quite some time. Thanks to strokin_tatsch I've finally got a 351w to build for my truck. This 5.8 is from a 96 F250, so it should be a roller engine. I brought it home last week. I wonder if the 302 will hit 300,000 miles before the swap.

 

I've got it almost torn down to just the block and heads. My plan for this build is to use GT40 heads and a mild cam.

I'm still debating on the cam. I've read that the 5.0 HO cam would be a good one to go with. My goal is to keep low end torque. I also would like to use the Lightning GT40 intake, but that may be something I do later on.

I'd also like to use roller rockers and keep the stock valve covers.

I don't want to skimp on parts, but this build is on a budget. So, I can't go hog wild.

I know I need the proper 28 oz flexplate to mate up to the 4R70W. Thats either Ford EOAZ-6375-A or Pioneer FRA205. Correct me if I'm wrong here.

 

Subscribed, because I'd like to do a similar build for the Centurion eventually. Nice project!

 

Y when u have a 5.0 do u want a 5.8 I'm subscribed I want to see this build

 

subscribed
for low end tq, i'm using gt40p's

 

Use one of the cams Conanski recommends all the time for roller 5.8L engines. You will be very happy.

The factory 5.8L intake is an inferior design for the size of engine it is supposed to support. Consider doing some port matching or ponying up for a Lightning or aftermarket clone. Even a mild build can benefit from an intake swap.

 

Well.. the Lightning guys usually end up advancing this cam 2-4 degrees because they complain it's weak at low rpms.. for what that's worth. Weak compared to what I don't know but any 5.8 will have more grunt than a 5.0 so it's all relative, but if you have one of these cams kicking around then use it with 1.7 rockers, but if not get the Comp 35-512-8 instead and install it straight up with 1.6 rockers.

 

I've been waiting for this thread Tex! Coming up to play with the big boys now, I see. I think you'll be satisfied with how this engine makes its power compared to the 5.0L.

What are you doing for the ecm? I would assume your truck is mass air. Custom tune or aftermarket tuning yourself?

 

It amazes me every time someone suggests an ho cam. Seriously guys. Spend the few dollars more and get a good cam designed for the task. Either the comp cam or the crane one will be worlds better then the ho cam and it's very reasonably priced.

 

No one here suggested it. On a budget its just fine to use IF you already have one around. No, I would not waste money on one, but it's a small step from stock with 1.7's.

 

The op said it.
I have 2 kicking around my shop and doubt I'll ever use them in anything but a stock build that I don't get a cam for.
I'd never buy one on eBay or cl just cause a good new cam is darn cheap.
Granted, if you're only looking for minimal gain it's fine to use. Because its better then the stock cam in my 90 by far.
But again. If I have my motor all apart that far and have spent a bit of money on it already, I'd rather put in a cam that will work better and make me much happier.

 

I agree with you. Id rather have something that is better than stock anyday

 

I just hate to see anyone go through all that work to build a nice motor with pretty matched parts and then bottleneck it with a cam choice.

Sorry for Going crazy on your topic tex. wasn't ment to be negative.
Conanski has a bit of experiance in the cam swap area. Listen to him and you'll be golden.
I'll be going with the comp cam if I stay with 351. If I go close to 400cid I'll be looking for something different though. Maybe not. I'm planning on a blower so that cam may work the way I want on a 400 with blower. We will see once I get closer.

 

The 5.8 makes alot more low end power than the 5.0 and doesn't have to rev as high. It doesn't have to work as hard.

I like the 5.0, but really would rather see it in a Mustang than a truck.

 

Your right about that. The factory 5.8 intake is kinda inferior. I don't understand why the 5.0 truck one got such big runners and the 5.8 one didn't. It almost looks like the intakes should be the other way around.