When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
It's not the original block, the block is black and there's paint on the back of the block. It's getting low on compression on the left bank, and starting to smoke under load.
Good luck with the swap. Hope you give us a honest review on the Lincoln 4.6L in a truck.
Personally, if it was an original '93 Lightning (but not original engine)... Those originally were flat-tappet (non-roller) 351W/5.8L blocks, with a hydraulic flat-tappet cam. '94 got the later roller-capable F4TE block, but still used the flat-tappet cam. My one buddy has a '93 Lightning, BTW, and tows his 24' race trailer with it. His Lighting was his daily-driver for years...
BUT, rather than go 'backwards' to a 4.6Lfrom a Mark VIII, I would upgrade the truck to the later F4TE hydraulic roller 5.8L block, just to run a factory roller-style cam. Then stroke it to either a 393 or 408for more low-end power/torque.
Another buddy just recently dropped in a roller-cam 393W into his '95 F250. Better-than stock FMS roller cam, better than stock FMS Z304 aluminum heads, Edelbrock Performer EFI intake, 30lb injectors, BBK dual throttle body, shorty headers, BIG difference in power!
That was my point too. I don’t recall ever seeing any full or partial VIN numbers on an 80’s or 90’s Ford vehicle so how does the OP know it isn’t the original engine? That is unless the block is black which could mean it was a FORD replacement.
They / the VIN aren’t on Chevy or Dodge blocks either, just the engine block casting number. If the casting number matches what was supposed to be in it originally, then it’s considered a ‘numbers matching’. But, unless fully documented, it still doesn’t mean it is an original engine. Just the original type / block for the year.
Chevy has a long list of block casting numbers that change by year or every few years, or truck vs car, etc. Such as the SBC 350.
I’m sure there are more complete ford lists, or you might have to compile a few together for a better list. The above list looks like it is missing 1989-1993 351 casting numbers.
Originally Posted by TheBirdMan
Got a 70' x 38' heated and cooled shop with three open bays, 6 years heavy equipment maintenance experience, 4 years in electrical troubleshooting, and 11 years in auto repair
Perfect, post up how it goes, and good luck with it. I’ve read those 4.6 engines, while maybe not performers, were very reliable engines.
Throw the 32v engine in (personally I'd swap in cobra cams but that's just me) and put some 4:30 gears out back and I bet it would be a blast to drive.
Fine engine, maybe even some tuning ability with the factory electronics still available.
Basis for one of the Cobra or other specialty mustangs of that gen.
They can scream, just torque vs RPM is some where else than the 5.8, I.E., down low.
Somebody in our chapter had a Mustang 4.6 & AOD in a late 70s F150 he'd done
He liked it over what he had, but don't remember if 5.0/5.8
My long-term goal, is to build the other lincoln 4.6 and 4r70w, since I have two complete mark 8s. Pull one drive train and wiring harness put it in the truck for fitment and drive it for a little bit while I build the other 4.6 ie forged internals, comp stage two cams, pro-charger style supercharger and J mod the 4r70w. I am also keeping the 4.10 gear in the rear since I just rebuilt that and swapped to disc brakes with a larger master cylinder from an f450