The Stovebolt Site Forums The Shop Area Engine Shop 216 to a 250

i recently purchased 250 to swap out my 216 in my 46 1/2 ton, my question is... can I use the front mount from my 216 on my 250 or do I have to find a crossmember to mount this motor,also, what kind of bellhousing do I use, because the 216 bellhousing wont fit, any help would be appreciated, would hate to have to sell this to buy a 235

Unless you are prepared to do major work forget the 250.
There is no bellhousing that will bolt to a 250 and have the correct mounts or bolt up to a 46 transmission.
There is no front mount provision on a 250.
Sell it and buy a 235 or 261!

I've seen several of these conversions but as pre'68 Dave says, it's major work. The 250 uses same bellhousing as a V8 so you can get to a more modern standard trans like a T-5 or an automatic. Re. mounts you'll need to pick up aftermarket mount kit, believe Langdon't Stovebolt carries them. These are side mounts so you wont need the old front one.
Easy swap would be the 235, only a couple issues to overcome vs. several with the 250.

DAMMIT......Back to the drawin board, wish I could find a usable 235 in pennsylvania

The 250 will be just like a V8 swap, so everything will need changed. On top of that, the 250 is slightly longer and 150 or pounds lighter.

Joe

Joe H, According to Leo Santucci, the GURU of the 250 and 292, the 250 is a couple of inches SHORTER than the 235 and 24 percent lighter, however much that is.

Hoozat, If (BIG "IF") you are replacing the rest of the drive line, the 250 would make a great swap. Use any V-8 bell housing from 55.2 through 72 or a 6 cylinder one from 63 through 72 and hang a T-5 behind it. That would leave you with a stock "appearing" cab and a really drivable truck. No, its not bolt in, but it's not all that bad either, and, I suppose, with the proper early bell housing you could keep the rest of your original drive line. Tom Langdon no longer carries the front mounts, but they are in Sirshe Rod Shop's #10 catalog, page 5.

Best wishes,

Les

I know its written that the 250 is shorter, and the 216 was missing from my truck when I bought it, but it sure seems to me its longer. I cut the firewall for some clearance and had to move the radiator forward to keep the fan from hitting, so thats what I go off of.

It is great little engine with plenty of power, its easy to work on and parts are easy to come by. If the older bell housing has ears to mount it, then front mounts would be a piece of cake to make.

Joe

Hey Joe, Your beautiful truck is one I really admire! I like the fact that you stayed with an L6, too, but you didn't exactly leave it stock! ;} I have only done the 235 to 250 swap once, but we used 2x2" steel tubing and some 3/16" plate for the front mounts. From the time we set the engine on the rear mounts, using the bellhousing that came on the engine, it took about 2 hours to cut and weld up the mounts. We used a fan shroud from a 350 attached to the back or the Harrison rad with zip ties. It is a pretty simple process, but it does require basic fabrication tools and skills.

best wishes,

Les

Mine is a stock engine with just different carbs. It runs just the same with one as it does with two or even three carbs. I am back to one now and working on a dual W-1 set up for the summer. I wish my firewall wasn't cut as much as is, it would be a lot easier to get a/c in there. Some one should measure from fan tip to flywheel on both just to see how they measure up.

The front motor mounts are simple to make or purchase, any small block mounts should work with out to much adapting. I helped Larry58 get his suburban running with a late model 250 in it. It has the intake cast with the head, '78 or so, and it really runs strong. I was really impressed with the torque!

Joe

One of our members installed a 250 and I believe a 700R4. Here is his very interesting website. Chuck the truck There is a lot of information besides the driveline on his site. Enjoy!