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Discussion Starter #1
Hello everyone- I need some advice, I am thinking of replacing my engine in my '94 F150 supercab 4x4. Is the stock 5.0 L 302 EFI my only option? what about a 351 or 429 or even 460? The 302 was ok originally, great on gas and power was ok. Now power is gone, mileage sucks (8-10mpg) and am thinking I may want to just replace the engine now. I want to keep the truck , it has been good to me. Figured you guys would know more than me about this. Any suggestions, Thanks
 

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What are you using the truck for? There are many choices you can make for an engine. Theres also the choice of the 300 if you want to go that way.
 

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Discussion Starter #3 (Edited)
I have just put a 6" lift on it, and would like to put 35" tires on it. Am using it for fun and commuting to work. Would like a more powerful engine but dont know if it would be a headache to install something other than the stock 302.
 

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Being a '94, your only option is to keep the smog equipment intact if you plan on driving it on a regular basis on the street. Since this is the case, you cannot go with the 429 option...even though the 429 and the 460 are the same block.

Given the size of the tires you plan to run and the lift, I personally would go with the 460. There are tons of late model(up to '96) F250 and 350's out there with the EFI 460.....making it the most economical and practical swap. Find yourself a donor vehicle from a junkyard in your area and you'll have everything you need for the swap including engine, big-block tranny, motor mounts, wiring harness, computer, injectors, etc. making it an easy task. Bare in mind going with something other than what's already in your vehicle will require a substantially larger investment.

If you don't want to go with the big block option, just rebuild your 302. If you really want more power, get yourself some aftermarket heads, cam, upper and lower intake, and any other go-fast goodies you can afford. It really depends on how much money you want to spend and what sort of numbers you want to make.

Also, since you plan on running larger tires, seriously consider a ring and pinion swap in the front and rear. The larger tires increase the overall gear ratio making it very sluggish off the line.

Another MUST is a brake upgrade. All too often I see guys running huge tires and lift without upgrading to larger brakes. It takes a lot more braking force to stop that extra rotating mass and you'll be sorry if you ever need to stop in a hurry.

Hope this helps a bit.

Brian
 
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