I might have the opportunity to put a cleveland in my truck, and since my engine is almost toast, i'm in need of a new one. I get 11-12.7 mpg right now, on a FI 302 w/ 5-speed, would a cleveland get me better mileage? (highway)

tnx - Andrew

 

are you sure you are talking about a 351 cleveland and not a 351 windsor? The reason I ask is because the cleveland hasn't been produced since sometime in the 1970's,and the windsor was produced into the late 90's. The cleveland was never fuel injected,so you will be running a stone age engine in your newer truck. The windsor was fuel injected from sometime in the late 80's up til the end of production in the late 90's. A 351 windsor would be almost a direct swap into your truck,whereas the cleveland will require a new transmission as well as other things.

 

cjben- The EFI 5.8 (351w) was produced from 1988-1997. And in 97 it just came in the F250.

If you can find a 351w to swap in you will be very very happy verses your 302. You'll have more power, and get better mpg. It uses the same trans, wiring harness, injectors, throttle body, water pump, timing chain cover, valve covers, and belt brackets. Difference b/t the 5.0 and 5.8 are upper and lower intake and fuel rail.

 

Then wheres the .8L come from lol

 

You have sensor problems which are pretty easy to fix with the on-board diagnostics available on this truck, so get your test port functional and go from there.

No.

 

Yes a 351C would give you better than 12 but if you fixed your 302, it would more than likely get better than the 351C

 

Haha. Ok let my specify. In accessories attached to the 5.0 and 5.8 the difference is the upper/lower intake and fuel rail.

We all know the 351w has a longer stroke that gives it the .8L. And if you want to get technical a 351w is not a 351w, its a 352w.

 

Lol! I knew whatcha meant. Just had to give ya some crap

 

Yeah I figured. But hey, someone has to keep me on my toes. Lol

 

So, the rational was that I have access to a cleveland (2v), but I'd have to go source a windsor.
I'm pretty sure the engine is tired, not a "sensor problem". It has 372000 km, and if I park on a slope and leave it in gear, it will just roll right down the little slope, with barely slowing down.

So, engine is dying (it also goes through oil like crazy), and I need to put something else in my truck. I thought about finding a little diesel out of a delivery truck (like a pepsi truck), but think that'd probably take too much effort to make work. The cleveland looks like it'd be fun to do, and I'm pretty sure some trucks in the 70's came with them, but if it's not gonna get me better mileage, I won't bother.

Other than a windsor, is there anything else I should consider? It doesn't have to be a (gasp) ford engine... After all, I have a kubota diesel in my john deere garden tractor. ....

Any suggestions?

 

fordcummins.com - Increase Horsepower with Ford Cummins Diesel conversion kits

 

Just get a 351w instead. It will be a ton of work to fit a 351c into your truck. Bellhousing pattern, motor mounts, exhaust, etc. are all different and the mounts and exhaust will have to be custom. You will need a new transmission altogether and if it's an electronic transmission, how are you going to get a carb motor, a PCM, and an electronic trans all talking to each other?

Unless you are really experienced in fabrication and custom work, I would go with what's going to be easiest.

 

351C has the same bellhousing bolt pattern as a 351W/302.The 351M has the same bellhousing bolt pattern as the 429/460.The 351M and 351C share the same heads,dizzy(not sure what else).That aside,don't waste your time with the cleveland,it's designed for a lighter car.You'll be way ahead with a 351 Windsor engine.They are plentiful and generally inexpensive.

 

It's a 5-speed, and I understand I'd need a different fuel pump. But truck is rwd, so not too heavy, and father-in-law IS extremely experienced in fabricating (it's his cleveland), and he suggested doing the switch. Not considering the work involved, is it just a bad idea? I always thought clevelands were a pretty good engine. And father figured in my truck it'd get pretty good mileage.

 

I looked up some specs on the internet and although Im not 100% positive, the 302 and 351C are just a hair apart when it comes to HP and TQ. You wouldnt lose anything putting it in there.