Fox T-Bird/Cougar Forums

Technical => Engine Swapping => Topic started by: Eliminator on March 19, 2010, 02:01:34 PM

Title: T O M U C H E N G I N E info
Post by: Eliminator on March 19, 2010, 02:01:34 PM
Yep trying to find what you need quickly on these forums can be troubling. Sometimes you get the snotty people telling you to look its been posted on here before (duh). Now, I am one to actually look before I post, and I have to tell you I haven't found much. SO this is what Im facing. I would like to put a 351 W in my 86 Thunderbird (that had a V8) but Im not sure what I would need to change to do so. The engine is an 80's 351 HO (so I was told) out of a truck and it is carbureted. I may back it with the C6 that it was originally connected to. So, if someone has done it or knows how to do it, any help would be greatly appreciated. :punchballs:
Title: T O M U C H E N G I N E info
Post by: 32VFoxBird on March 19, 2010, 02:08:33 PM
it's no different than it is with a mustang. tons of info on the net pertaining to 351W mustang swaps.
Title: T O M U C H E N G I N E info
Post by: Eliminator on March 19, 2010, 02:13:30 PM
yeah Im finding out that. Most concerns the hood but I believe the thunderbird's hood is higher. Other than that Im seeing discrepencies on motor mounts and headers. Ill keep digging
Title: T O M U C H E N G I N E info
Post by: 32VFoxBird on March 19, 2010, 02:21:52 PM
That depends on which intake/motor mounts/k-member you use.
Title: T O M U C H E N G I N E info
Post by: Cad-T-Bird 500 on March 19, 2010, 03:03:31 PM
I just posted these on Craigslist but I think shipping would be close to $100.  But if you need this or anybody else on the forum I will sell it for $300 shipped (lower 48).

http://seattle.craigslist.org/oly/pts/1651680723.html

TED
Title: T O M U C H E N G I N E info
Post by: tbirdscott on March 19, 2010, 03:12:58 PM
You will need the oil pan and pickup from a 351W panther chassis car (full size LTD grand marquis etc) aswell to fit the cross member.

Scott
Title: T O M U C H E N G I N E info
Post by: V8Demon on March 19, 2010, 03:59:36 PM
There's approximately an extra inch of room to play with under a T-bird/Cougar hood FWIW


And it's TOO

Not TO......
Title: T O M U C H E N G I N E info
Post by: Kitz Kat on March 19, 2010, 04:10:01 PM
I don't think I'm snotty! but do you plan to keep it carbed?
If you go FI you will probably have hood clearance problems.You may have that also with the carb setup depending on the intake you use. Every swap from what's not normal will have pitfalls, you either plan for them or make it happen.
Title: T O M U C H E N G I N E info
Post by: V8Demon on March 19, 2010, 04:11:14 PM
You can make it fit carbed.  I've seen it done.
Title: T O M U C H E N G I N E info
Post by: thunderjet302 on March 19, 2010, 10:37:26 PM
Quote from: tbirdscott;314953
You will need the oil pan and pickup from a 351W panther chassis car (full size LTD grand marquis etc) aswell to fit the cross member.

Scott


Just a FYI but FRPP makes a 351W fox swap oil pan and pickup tube. I think it costs ~ $100-150.
Title: T O M U C H E N G I N E info
Post by: Eliminator on April 10, 2010, 12:21:19 AM
LOL@kitz. Yeah Im finding the same concerns you guys did. I plan to keep it carbed
Title: T O M U C H E N G I N E info
Post by: HAVI on April 10, 2010, 10:33:51 PM
FTLSCI71 and his son put one in a Tbird, and it fit without hood problems.  Your '86 is the crossover year on motor mounts, but if you still have the 5.0 mounts, or buy the proper set from ChuckW, you'll be ok there.  Plus the oil pan issue.  Headers not sure, but I would think Mustang style would work. C6 would require some trans mount adjustments, and maybe even tunnel clearance via BFH.  I have a C4 w/bigblock bellhousing, and it fit, so any interference will be on the back half.
Title: T O M U C H E N G I N E info
Post by: MAYLONE01 on April 16, 2010, 11:25:09 PM
Ford racing oilpan $130 bbk headers $230 from summit get motor mounts from chuck  a c6 has clearance issues i put a 351 in a 88 tc not easy or cheap but its fast.go to cool cats .com eric was alot of help
Title: T O M U C H E N G I N E info
Post by: 83-88T-Bird Guy on April 27, 2010, 08:14:57 AM
Your 86 came from the factory with a V-8. That makes this swap easy. Use your same motor mounts, timing cover, water pump and fan. Accessory mounts might be a slight problem because the 351W heads sit further away from the crank than the 5.0.

C-6 trans fits fine. You can also use the factory issue 5.0 AOD trans mount....bolts right up. Floor shifter is a must if you use long tube 351W headers.

I have a 460 BB C-6 trans in the Gray 83 T-Bird and it fits o.k., so I have some first hand experience there. Small block C-6 is smaller than the BB C-6 in the bellhousing area.

A carbed 351W should be easy.
If you have an in tank 40 psi EFI pump you can try this for a easy and quick fix to get 6.5 psi to your carb:

I bought some brass fittings and built a "T" where fuel comes in and shoots across the T and returns back to the tank. Since the return line is smaller than the feedline, it produces a natural restriction and it comes out the side of the T at a perfect 6.5 psi. to the carb :D

These 2 pics are from my 84 Bird that was converted from EFI to carb.
My hand is touching the feed line from the tank.


(http://i148.photobucket.com/albums/s3/83-88T-BirdGuy/Fuellog2.jpg)
(http://i148.photobucket.com/albums/s3/83-88T-BirdGuy/fuellog1.jpg)