hi guys,
I've searched the site for answers and have come up empty....
I'm going to be swapping out my 245,000mile I-6 for a 331 motor. It's a stroker out of my 93 Mustang, it has GT40 iron heads(milled), Trickflow stage 1 cam, Crane 1.6 rockers,Comp cams pushrods, Ford racing lifters, and Crane stud conversion. The mustang will eventually get a 351 w. All I have in the garage right now is a 73 351c that needs a major rebuild. I need to get rid of this engine....

I'm planning on buying long tube headers(like the mustang), a 2121 edelbrock manifold and a 600 cfm carb(1406). I don't use the truck at all for towing/pulling and I'm looking for much better acceleration and highway speeds. The 6 is killing me going up that steep ramp to the highway everyday. My 331 is very strong, gets great mileage, and was built about 4 yrs ago. Thing is, I have no idea what to do about the mount perches.... They are removable as they have four bolts holding them to the crossmemeber, so I don't think there's any grinding involved. This F150 is an 86 with a 4 spd manual.

Anyway, is there a source to get the V8 perches or do I have to raid junk yards?
I'm planning on pulling the 4 core radiator from the stang as well as the MSD ignition. The rad should pose little problem in mounting as it is 31" in length and the trucks is 33".
I have the flywheel which is 164 teeth, as opossed to the 157 or so from the mustang. I'm even keeping the serpentine setup with the power steering pulley swap and a 95 mustang alt. 130amp...

Is there anything else I'm missing? besides the obvious exhaust change?

Thanks and sorry for the long post!

 

dont quote me on this one, but isnt the I-6 and v8 small block perches the same? same tranny bolt pattern also?

 

You definitely need the v8 perches, and the only place I know where you can get them is the junkyard. From what I understand though, it doesn't matter what v8 it was, so that might make it easier.

Don't forget you will need a oil pan. I have heard the mustang double sump will fit, but you can't hardly get to the front drain plug in the truck. You will also need to buy a little electric fuel pump, or change the front of the engine over to let a mechanical fuel pump fit, since your mustang engine was fuel injected.

 

I found a local source for the perches, thanks guys!
that double sump won't be a pain either, a friend of mine with an 83 has this setup and it works well(with a notch). Here's an update though, I'm not going carb after all... With what it costs to buy a new manifold, gaskets, throttle linkage, air cleaner, and carb, I can get the Painless 5.0L EFI harness and keep the mustang intake/injector setup! I'll just need an inline fuel pump(which I would need for the carb too-same price) and I need to change the rubber fuel lines to some fuel injection lines for the psi increase..
That harness is $499 so far online. This project should kick off in the beginning of august so I'll post some pics of before and after!

 

Your truck must be 2wd. If it were 4wd, that pan wouldn't work.

There is not enough clearance in the front for the differential.

Good luck with the swap.