I'm swapping a 460 into my '79 F350 4x4 with a NP435 4-speed. I'm going to use the L&L mounts with my 400 frame mounts for the motor. My question is I'm using the 400m bellhousing, I had a 390 flywheel but it wouldn't clean up when I had it turned. I'm wondering what flywheel and clutch to order from the parts store. I'm wanting to go with an 11.5" diaphragm style clutch, any idea what part numbers I need to order and which store is best?

 

First of all lets step back here is this a true f36 vin code truck? if it is i would have to think long and hard about a 460 swap.

 

Yes it is and what is there to think about?

 

that is a rare truck. first year factory 4x4 one ton. if the truck is in good shape for the most part i and it still has the 351/400 in it i would stick with it. as for rare and valuable trucks this will be it. is it a ranger, lariat, or custom.

 

It's a 36 year old truck truck that has had the holy hell used out of it, it's been my daily driver for the for the last 8 years. When I bought it it the original boat anchor 400 was gone and had been replaced by one out of a car, I swapped it for a 300 six that worked really good but but had a crack in in the block between cylinder number 1 and 2 that it didn't know about, my neighbor had had a 460 cheaper than rebuilding the 300 so that's where I'm at. All that being said this is not Barrett Jackson.

 

i agree with you about this not being barrett jackson. just a heads up.

 

I used the L&L flywheel and a stock 400 clutch bolted right up. Haven't driven it yet but it all went together fine

 

i have a 79 f350 4x4 with a 460 . go for the 460 you can get good ones for free. if you take the old junker away.

but it is auto. i would like to make it a 4 speed . i thought i heard somewhere that you have to have the pilot bearing machined to fit the 460 . is this true ?

 

I read all the things that needed done; 360/390 flywheel, certain pilot bearing, diaphragm clutch.

I was traded an L&L flywheel, so all I needed was the clutch/pilot. L&L says only their clutch bolts up,, well I tried my stock 351/400 clutch and it bolted right up. I went to buy a new one and got this one: PowerTorque K0080-02HD - Clutch Kit | O'Reilly Auto Parts

It fit perfect and I even used the pilot that came with it.

NOW, I do not know if mine is an oddball or what, but they may not all be like that. I do not know if my crank has been machined to accept this pilot. The engine has been bored 30, so it's possible. Just food for thought.

 

I found a used L&L flywheel off C-list and had it faced. Used their clutch also.

 

What needed to be done about the pilot bearing ?

 

After checking with bore and depth with calipers I installed the pilot that came with the clutch. Worked fine. Think the crack had two different diameters at different depths, it fit one of those and didn't bottom out the transmission shaft. Good to go.

 

302 pilot brg fits in the second step of the crank, unless crank doesn't have second step. I've never had one that didn't

 

I have been seriously considering swapping a 460 in to replace my junky 400 in my 1978 Ford F-150. It's got a 4 speed manual. What all would I have to do to get the 460 to bolt up to my 4 speed?

 

If you haven't bought the mounts yet I think you might want to reconsider. I have seen some dissatisfaction with L&L mounts as far as longevity and alignment goes. I have read complaints about fans not lining up and the laminated mounts separating. I used the west coast broncos mounts and they are pretty bullet proof and everything lined up perfectly (fan shroud, trans, etc). I think they will last a long time.

West Coast Broncos: WCB Extreme Duty Motor Mounts 429-460
Extreme Duty 460 Motor Mounts-Broncograveyard.com

Here they are mounted on my motor...


Sorry can't help with the clutch related stuff. But this guy has a nice list of parts needed...

NORTH COUNTRY SPECIALTIES ®

If you use the thermostat housing for a 79 f250 2wd with 460 it fits really well with the large cap distributor. Fits better than the 351m or 400 housing often recommended.