Well my engine is getting pretty tired and some time in the near future it will be time for a rebuild, and of course i wanna make some more horsepower...so i was thinkin of what heads i could use and the Cleveland heads would be good for what ive got and i could get a pretty good pair for a pretty good price...but some of them say 2V and some say 4V and i dont exactly know what they mean is it something to do with the carb???? and if it is which one would be good for a fuel injected engine???

 

The 2v heads were canted valve heads with decent flow characteristics that came on 2 barrel 351 cleveland motors and make good power and torque in both two and four barrel applications.

The 4v heads were canted valve heads that came on 4 barrel cleveland motors and were modified to go on the boss 302 motors. They had huge intake ports that didn't have a lot of air velocity at low rpms and thus poor low end torque and only worked good at high rpms. Really not suitable for a truck.

Since you were talking about a fuel injection engine, I assume you have a 302. Neither cleveland heads will work with your fuel injection without modification to the heads to allow water flow through the intake and neither cleveland heads will work with your efi intake.

 

so i probably want to get the 2V heads and switch to a carb...this is good news because ive been wanting to go to a carb for a while

 

If you have a 302, you will have to do more than just switch to a carb to use cleveland heads. The heads must be drilled for water passage through the intake. A standard 302 intake will not work. You will have to locate an aftermarket intake designed for the swap if they still make them.

 

you would be better off picking up a 2v cleveland engine and swapping, or a rebuild on your 302.

 

Nothing wrong with the EFI on your 302, so long as you replace all your sensors, test your injectors(replace as needed) and rebuild from there. Switching to a carb'd engine means changing intake, and some machine work to make the intake and heads work properly. Up to you as to how much you have to spend. You may have to change ignition parts, as well as by-pass your computer system to make this all work. In the long run you'd be looking at an easier path to make what you have work. Mild head porting will gain, as will mild chip configuration(re-mapping the injection, see your local Ford dealer), and headers and a mild cam. Do some pricing out, see what's worth your time and investment.

The biggest thing to consider is how you use the truck. For an everyday driver, stock, or mildly built from stock(I stress mildly, most trucks respond really well to a mild RV cam, headers aimed at low end and mid-range performance, carbs or injectors aimed at the same, if injectors, aim at re-mapping for the same, fi carb, aim 600cfm 4v-7004v depending on size of engine, 600cfm is a sure performer for 350-400CI engines on the street, stepped headers or equal length headers work very, very well on the street for average driving, large tube headers are more for high rpm work.) There are so many variables as to how to build an engine. One guy will tell you this, one guy will tell you that.

Best performance mods done for a daily driver are done small, and work from there.

If you go to big, you'll be disappointed, if you start from something use-able, you'll be impressed. Work from there.

 

have you looked at the GT40P heads? they were an off the shelf head, copied from the GT40 ford built with an aluminum engine, the P heads were offered on Mountaineers and Expeditions, Mustang owners are snapping them up because they have better performance than some of the after market heads, yet cheaper

 

gt40p heads are expensive,cause like howler said, stangots are snapping them up. edelbrock, and duraspark.just swapped an efi 302 from a beat 86 to a almost pristine 84 w/ aod and 3.08 ls rear.(like gts of that year)nice! duraspark instead of tfi, cause speed density contolls your life now.nice system, but wont work w/ carb. judt go to boneyard and get sub harness off something old. got intake off ebay for $19.00. carb? wouldnt go above 600cfm for stick,650 for auto. dont go cheap,or holley in this area.