$400 for a pair of reman GT40’s is a steal.

If you do pull a junkyard engine then be sure it comes with all the pulleys, brackets and accessories. Those can add up quickly if you have to buy all that stuff.

 

More interesting. The commercial discount is only like 10% percent but with a pair of E7 heads that'd be right about $400.

 

Yes, they were $200 each plus with his employee pricing I think he even paid a bit less than that. Great deal for some freshly rebuilt heads. I gave him a set of Hooker shorty headers and a Explorer Intake. He already had an off road H-pipe and Cat back. He added a Tune from Bama and it really woke the car up.

 

True in that 351W's, no matter which head, use 1/2" head bolts. But anyway...
I looked in at Autozone. 5.8 "three bar" heads for $227 each plus a $100 core charge on each. Not having correct cores to turn in would mean $660 plus tax for a pair. Not a bad deal.

 

They don’t care what cores you turn in....we turned in the stock GT heads. They all go back as a batch in a truck load back to the rebuild facility.

 

There's also a sleeve or something available from Ford and Summit I think to use the 7/16 bolts on the 351 heads.

 

I have a 95 351 out of an wrecked F250. I took that and stroked it to a 408 and I'm coupling that with an AOD for my 67. It all depends on your budget.

 

Do the gt40 heads need drilled for the 351w head bolts?

 

Yes, the 289/302/5.0 uses 7/16" head bolts. The 351/5.8 uses 1/2" head bolts.

 

I got one from a 77 Versailles. Had it rebuilt at a local machine shop who showed me how to port the heads, which I did. I changed the heads after finding a set of GT40 heads from an Explorer (you have to have the holes enlarged to use them on the 351 because the bolts are a larger diameter) and didn't notice any difference between the GT40's and the ported ones I did. I had the engine in my 66 - had Hedman long tube swap headers for a while -they fit well but were a huge pain to put on the driver's side. I decided I wanted a manual trans and changed to JBA shorty swap headers. They fit OK but were so close to the steering box that all the grease boiled out of it and didn't clear the clutch cable either. I pulled the 351 out at that point and put a six in it, since the car originally came with one.

 

For my 70, 3 years ago the local junkers had a 1/2 off sale. I pulled a complete 351w engine from a 96 f250 that was rearended at the local junkers. The same day also took a complete set up gt40p heads from a 98 mountaineer and the rear end all complete. Placed the heads ontop of the 351w to make a “complete” engine. Walked away with all that for about $200 or 250.
Im using the 96 f250 front serpentine drive. Changed the distributor to a carb type and using a fi-tech for fuel ontop of a speedmaster 351w carb intake manifold. Changed the cam and cam bearings to aford letter cam. Also changed the rod/cam bearings and gaskets. Reused the pistons and even the rings as the stock cross hatchings were good.
The heads I just tore them down, changed the springs to alex springs and valve seals, drilled the bolt holes to 1/2” and gave it a hand valve job. Used a set of sanderson headers for gt40p.
For a very low buck and junkyard build, the engine runs surprisingly very good. Car moves with authority. Just recently I started burning oil And for sure thought it was time for a rebuild but it turned out that I used the wrong type of valve seals, installed a set of gt40 specific seals and its no longer burning oil.
Theres more stuff to it but if you have a garage and tools, you can make it happen.

 

The 5.8 in my '67 originally came from a 1978 police car. Completely rebuilt. I bought a 5.0 pickup truck with a blown engine and put another 5.0 on it. Didn't like that and found 1996 5.8 in a E250 at a pick and pull. I figured i would freshen it up and use it. Turns out it didn't really need freshening and I installed with a few appropriate gaskets. That was like ten years ago and I have NOT been kind to it. Rear tires are bald and need replacing. No idea how that happened.
Anyway, I like that 5.8 so much I found another one for my '69 as a "core". Took some parts from another engine and some GT40P heads I had and am making Frankenengine. Found some long tube headers at a swap meet the guy said came from a 289. They fit the GT40P's like a charm. Wish I knew what they were. I have six other sets of headers that don't fit at all.
Tossing the roller cam in favor of a flat tappet cam I got from another forum member. Because why not?
One reason for Frankenengine is because I have the exact correct 351W for the car but it's getting a stock rebuild and what fun is that?

 

My buddy Todd got a remanufactured 5.8 for his 1995 OJ Bronco and he's been really happy with it. Use the early model timing cover and appropriate water pump, top it with a nice aluminum intake and the carb of your choice, and it's playtime.

 

Chances are any JY 5.8 was in a work vehicle and is flat wore out. If it was in a low mileage wrecked vehicle the 5.8 is probably long gone.

 

1997 was the last year for the 351 as it was available in the old body style E and F-250 / 350 etc carryover before the first Superduty trucks. The F-150 and Bronco had the 5.8 til 1996.
There was also the F-150 Lightning produced with the High Output 5.8 up to 1996. I had a buddy with one and it was pretty quick for a pickup...until the supercharged 5.4 came along. Fun times. Fun times.
The K code manifolds fit pretty well on the GT40 and P heads better than most, may take a little grinding at the corners, and allow the plugs to be R&Rd without removing the exhaust.

 

I am familiar with the years for the roller, also can be found in the vans, 250's, and 350's. Not sure what header would be needed though. I know the FRPP were popular for it, but they don't make them anymore. Seems like I have read the K code manifolds work, but am unsure.

 

Just as the 2001 Explorer was the last Ford vehicle to have the old pushrod 302/5.0 it is my understanding that the F150 was the last Ford vehicle to use the 351W/5.8 and it was a roller cam block. Something like 1994-1996 before Ford started putting the 4.6/5.4 engines in the trucks. I would look for one of those roller 5.8s. I'm sure somebody here can report the exact year range of the 5.8 roller.

 

A VERY popular member just posted today about digging through a yard for a motor,......

Explorer 5.0 Engine

208,000 miles. Wrench-A-Part in Belton, Texas.

www.vintage-mustang.com

 

I saw that! It’s what made me think about the 351 short block with the gt40 heads. I have a line on two junkyard 5.0 gt40p motors with less than 150k miles on them.