Hey guys I am new to the forum but I have a few questions. This is the situation: we have a 68 f100 styleside with an I6 engine(not sure which one-the truck is a basic model) and a 3 spd on the column. I was wondering what it would take to turn this truck into a sleeper (like farmtruck on street outlaws).
- What engine do you recommend that would be easy to install with minimal mounting issues?
- would we need a new transmission, driveshaft, differentials in order to handle the power?
- and lastly how much would all of this cost and how long would it take?
thanks and any help would be greatly appreciated!

 

460 block bored and stroked to 552 with forged internals. Trickflow heads and at least a 106mm turbo.

30 grand for all the right stuff

just my opinion as usual.

 

That would work, but I say:

Common rail 5.9 cummins all juiced up to about the 1200hp mark. Probably about 20 grand. Just my opinion.

 

You either have the 240 or the 300 engine. The fourth digit on the VIN will indicate which one you have. A means 240, B means 300. Either way, I wish you were local because I'd happily take that engine off your hands.

The engine perches for the big sixes and the FE engines are exactly the same, but I believe it's the mounts themselves that differ. Find the right mounts and you're set. Keep in mind though that the driver's side perches differ from manual steering and from power steering models. I haven't looked into the specifics, but it's likely because the power steering models have more parts to accommodate.

From 1965 to 1979 the frame, from the rear of the cab forward, remained exactly the same. This means that any engine offered in these trucks during that time period, and there were a lot of them, will fit up with no problems. Simply source the appropriate engine perches and mounts. You may need to do very minor modification, but it's all easy. I'll give an example of what I mean. In late 1969 the 302 engine was offered in the F100. Pre-late '69 trucks won't have the bolt hole on the frame to mount the lower portion of the engine perch. To fix this, it's as simple as bolting the upper portion and using the lower portion as a template to drill your new hole. Once done, you're golden. You can throw in a 302. I haven't checked with any other engines but you may or may not have to do minor modifications like exemplified above.

Now, because your post is too vague I can't tell you exactly what engine to throw in. You obviously want power, so anything from a small block 302 to a big block 460 will do the trick. If you seriously want power though, go for the big block. A factory 302 block will very likely fail at anything more than 450hp. The 460 on the other hand can handle about 750hp or so.

When you build an engine, you'll need to build your transmission and all other drivetrain components to be able to keep up. And, don't forget to upgrade your brakes. If you're going to accelerate quickly, you need to be able to stop quickly.

Speed costs. How fast do you want to go?

- Jackson