I really don't want to deal with the header issues associated with the P heads. Otherwise, I'd probably get them, since they are easier to find.

 

I remember driving a friends 1995 Lightning when it was new and didn't think it had any sort of feeling of being weak in the low end.

I may advance the timing a hair anyway though.

I'm not a cam expert by any means. How much difference would there be between the HO cam with 1.7 rockers and the Comp Cams with 1.6 rockers?

My truck still has to pass sniffer test. Will this cam selection affect that any?

 

Yeah, I can't wait to have the low end power. Our 85 F150 had the 5.8 HO with the factory 4v Holley. I miss the power it had. Yep, the truck is MAF. At first I probably will have to just run on the stock tune. There won't be any budget left for custom tunes etc.

 

Gt40p heads work with 90* plug boots

 

That truck could definitely benefit from a bit more get up and go.

 

I know its not the best cam in the world, but for factory its about as good as it gets. I am building on a budget and will not be racing my truck when I'm done with the swap. I probably wouldn't want to get a cam from Ebay etc though. I agree on that.

 

No need to apologize. I see exactly what your saying. I also agree with you. I would prefer to build it once and not have to get back into the motor again.

 

I noticed something interesting about the fan shrouds. My 5.0 shroud is 7 inches deep, and the fan sits almost all the way inside the shroud. The one from the 5.8 truck is 5.5 inches deep, and the fan sits about half in and half out of the shroud. I noticed that the Lightnings I saw also seem to have the thinner shroud. I didn't measure those though. Which shroud is better. Why would there be a need to two different ones?

 

Most definitely. From the very little I've driven it after getting the suspension done, it's not too bad, but more is always better. Especially on a budget.

 

Are the 5.0 an 5.8 rad's the same thickness ?

 

Is Motorcraft AWSF-32C the correct spark plug to use with a 351 with GT40 heads?

 

They look to be the same.

 

ford didnt want to go above and beond to tune the 5.8 vs the 5liter.
so choke it down and put in a smaller cam to make it run like a 5liter and there you have it
i hated ford for doing what they did. the 5.8 didnt even get a knock sensor

the 5.8 has such a short lower in take because it seems as though they wanted the 5liter and the 5.8 to fit in the same height space. If you use the van for example, the 302 and the 351 dont have any more room at the top of the intake then each other. (thats my observation and conclusion)
the 351 definatly should have gotten at least the same size runners as the 302, but again, ford seems as though they wanted to restrict the 351 for some reason.

 

Shroud depth is determined by the radiator thickness not the engine size. Both 302s & 351s came with the lighter duty (~1" depth) radiators as well as the heavy duty, sometimes referred to as "Super Cooling", (~2.5" depth). If upgrading the radiator on a truck with either engine try to locate the appropriate [shorter] shroud. Incidentally, 460s used the same radiator (the thicker one only) so a shroud from a 460 should also work... unless you to do an e-fan swap. Then you will not need a factory shroud.

dn.

 

Yeah it certainly looks like a F-up, but it could have been a deliberate attempt to strangle the motor to meet emissions as well.. that was the predominate modus operandi for domestic auto manufacturers through the '80's.