going to swap my 351w for a 429 in my 85 f250. running into problems in trying to keep my four speed manual and hyd. clutch. has anyone done this?

the windsor bellhousing will not bolt to the 429... which 4speed do you have NP435 or t19?you can get the right bellhousing at the junkyard...

i know the windsor bell wont bolt up. but im just wondering what bell will. i have a t18 with a hydro clutch so should i look for an 80s 460 4speed bell ?

that's right..

so what should i be running for a flywheel and clutch setup?

so what should i be running for a flywheel and clutch setup?
this http://www.pirate4x4.com/forum/showthread.php?t=262605

hmm...sounds like a nice setup but how do i know that it will fit into an 85 460 hydro clutch bell? i dont know for a fact how deep the 85 bell will be.

it more than likely will. If it will fit into a belhousing for a 351M, without grinding the tabs on the belhousing, it should fit with no issues. If you were wanting to run a 12" flywheel, which some 460's were equiped starting in the 80's I would be concerned then.

IIRC, there is actually no way to swap in a 429 and use a hydraulic clutch using all stock parts. All 429's are internally balanced while later 460's (that would have a hydro clutch) are externally balanced. The externally balanced flywheel is thicker than the internally balanced one, and in turn requires a deeper bellhousing to work. So for a 429 you need a shallow bellhousing (351M, 400, 429, early 460) and thise were all mechanical clutches.

Justin

IIRC, there is actually no way to swap in a 429 and use a hydraulic clutch using all stock parts. All 429's are internally balanced while later 460's (that would have a hydro clutch) are externally balanced. The externally balanced flywheel is thicker than the internally balanced one, and in turn requires a deeper bellhousing to work. So for a 429 you need a shallow bellhousing (351M, 400, 429, early 460) and thise were all mechanical clutches.

Justin

In that case, could he just have a late model 460 flywheel balanced to a 0 oz imbalance?

JP

i wonder would it be possible to make a 351\400m bell except a hydro clutch, maybe by making a bracket to hold the slave cyl. ?

if you swap in a ZF 5 speed tranny, everthing will work great. It is already set up for the hydraulic clutch, and will accept a 12" clutch with ZERO issues.

And as far as depth of the belhousing is concerned, could you not use a longer plunger on the slave cylinder to activate the fork? Belhousing depth should not be a major issue IMHO if you could legnthen/shorten that part as needed. Thoughts?

Just use the 460 flywheel and bell housing,

If it where me I would try and wait for the ZF..