I'm thinking of putting a 429 in my '77 F-250 4x4 4-spd that has a 351M.
Has anyone here done this? How much trouble is it?
The 429 is in a 1970 LTD

Thanks for any insight!!

 

It should fit, you need perches and mounts and they're available from L&L I believe. Also make sure that its a Ford motor not a Lincoln.

You'll need truck exhaust manifolds too

 

IIRC you also need an 83-86 460 4-speed bellhousing, I seem to remember someone saying the 351M/400 bell doesn't quite work properly... luckily a widely available 390 flywheel will bolt right up and work fine!

 

No such thing as perches (aka stands, towers) for a 4WD, as there's no crossmember to bolt them to. 4WD engine supports bolt to the inner frame rails.

What year Lincoln came with a 429? None, all 1968/77 Lincoln/Continental Marks came with 460's, as did some 1978's. Some 1978's and all 1979's came with 400's.

1970: The 429/460 block casting prefix is D0VE, both share the same bore, the stroke is different.
All 1983/97 F250/350 460's have a hydraulic clutch. 1983 was the first year 4WD and a M/T trans was available with 460's.

460's not available in F100's after 1976, not available in F150's after 1979. 460's not available in 1980/82 F250/350's.

 

I thought 83's had mech.clutch and 84 was the first year for hydraulic? Maybe not, but even so, people have commented about using the five-speeds with the mechanical linkage, and those ALL came with a hydraulic clutch stock, so this shouldn't be an issue anyway. The 460 and diesels have an external slave with a clutch fork, so mech. linkage should be fine!

 

My grandpa put a 429 in a '77. I don't think too much cutting was involved.

 

You picked a good 429. 2v or 4v??

The 2v pulled huge torque numbers at 2200 rpm.

 

John thanks for chiming in, always look at the thread last entry date. 12-03-2012....

The guy that asked the original motor swap question has not been on FTE since 12-16-2012.

This thread is dead, now we are feeding it and making it a zombie thread.

 

Glad someone pointed out that its an old thread. I never look at the date.

 

Just like you beer can, ck the born on date or the use NLT X.....date. Lol