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View Full Version : Pontiac 428 in a 1985 Fox Mustang.


wase
01-26-2025, 11:25 PM
Posting looking for specific information on putting a Pontiac V-8 in a fox Mustang.

Has anyone here done this? What mounts, exhaust manifolds/ headers, fan, and transmission can fit? Is there a kit for this?

Asking because I have a few buildable Pontiac engines, and recently came across a rust free engineless Mustang for practically free. Thinking that installing Pontiac power and torque could make it something fun to drive.

Thanks for any info or comments.

M.D.

jerry455
01-27-2025, 07:22 PM
No idea, but it sounds fun. Imagine telling people you have a 428 and they assume a Ford but see a Pontiac. Awesome. I have seen quite a few LS engines in Fox body cars.

'ol Pinion head
01-27-2025, 07:32 PM
Steve C ought to be here soon. Steve has sponsored the Pontiac engine in a good friend's Ford Fairmont or Futura racecar. Believe that's the same basic unitized body & rack front end as the '79-84 Mustangs.

blueghoast
03-06-2025, 03:41 AM
Steve C ought to be here soon. Steve has sponsored the Pontiac engine in a good friend's Ford Fairmont or Futura racecar. Believe that's the same basic unitized body & rack front end as the '79-84 Mustangs.

Someone sells front K-Member frames for the fox bodies but don't know who.
You can put any motor in one.

GT

JD311
09-14-2025, 08:00 PM
Its been done a few times, i would use an aftermarket k member.

Half-Inch Stud
10-21-2025, 03:10 PM
Can you spare the stock std-size 428 pistons?

Skip Fix
12-06-2025, 08:29 PM
Steve's friend John Dinkel has a Pontiac motor in his Fairmont that used to race the the "True 10.5" class here in Texas.