we want to swap a fresh 351 windsor for the 390. what bell housing do we need to keep the 4 speed, and what engine mount perches do we need and who has them for sale? thank you for your help.

 

First question: 2wd or 4wd? If 2wd, the 351W is a small block Ford so you need 69-79 302 or 77-79 351M/400 engine perches from a junkyard. A 302 bell housing is needed or a van 351W bell housing. If 4wd, then you can use 77-79 351M/400 engine supports and a 302 or 351W van bell housing. If wanting new stands/supports, you van buy new from AutoFab:
1965 - 1979 Ford Truck 2WD
1967 - 1979 Ford Truck Four Wheel Drive

 

it is a 2 wheel drive. we would have never guessed the 302 bell housing can stand up to the really heavy four speed. can we use the same flywheel and clutch? what headers fit?

 

Ford had 302's and 4 speeds together in F-100's since 1969. I had a 72 with a 302 and 4 speed. You need an 11" clutch, flywheel, and pressure plate for the year of your 351W due to it's particular balance needs. I can't tell you off hand what balance it would need.

 

The fly wheel and pressure plate need to be of like dimensions. It may be obvious, but an 11” pressure plate is going to have a different bolt pattern than a 9 and 10”. I didn’t know this when I did some swapping. Just my .02.
It’s not so much the duty rating of the bell housing as the bolt pattern of the transmission to the bell housing.

 

are there bellhousings that won't work? i found some 1960's from a 289.

 

289: 1963/68 Ford/Merc Passenger Cars & 1966/68 Bronco.

TWO different 289 bell housings: 1963/64 Fairlane and 1965 Mustang before production date 8/23/64 has a 5 bolt hole pattern.

1965 Galaxie/LTD/Mustang/Falcon/Comet/Fairlane from production date 8/23/64 has a 6 bolt hole pattern, as do all 1966/68 289's.

You want the 6 bolt pattern, not the 5 bolt pattern.

 

Thank you for your help. We will probably ask more questions. Together we will get this swap finished. michael

 

Sanderson FF6-P shorty headers fit perfectly.
You need a flywheel with a 28oz. imbalance.

 

Both perches 5" back to front bolt


pic of the perches

 

You can make a card board template of the bell housing you have and keep it on hand as you go to pickin places. One of the mounting face to the block and one where the tranny mounts to the bell housing.

 

Same: 1969/79 F100 302; 1975/79 F150 302; 1977/79 F100/350 351M/400 2WD

 

We are going to the Pomona swap meet and would like to score a bell housing. We would like to know what the bolt spacing on the front of the Borg Warner T-19 is so we don't get the wrong bell housing. We will make a carboard template of the back of the 351 windsor to take with us. We haven't pulled the 390 yet.

 

Here you go for info for your most likely candidate for a 4 speed, the BW T-18. The NP 435 is the other one used, but mostly used in 4wd's until 1979. Both use the same Ford butterfly pattern.
The Novak Guide to the Borg-Warner T18 & T19 Transmissions

 

We found the t-18 to bell housing bolt pattern. The front bolt pattern is the symmetrical Ford butterfly pattern 8 1/2 wide by 6 5/16 tall.