429/460 Swap
Thread Starter
|
Junior User
Joined: Jan 2008
Posts: 67
Likes: 0
From: Central Ohio
429/460 Swap
Ok... I know there are probably 100's of posts on here about this topic, and I've dug through a lot of them with no luck in answering this question.
Can I use a 460 bellhousing & flywheel from a 70's vintage 4x2 truck to swap a 429 into my '78 F150 4x4 with 351M & NP435 trans?
This potential option seems like it would be simpler and cheape,r than using an FE flywheel or an L&L flywheel with the 351M/400 bellhousing.
engine: '68 429 ThunderJet (Neutral Balance)
Thanks
Can I use a 460 bellhousing & flywheel from a 70's vintage 4x2 truck to swap a 429 into my '78 F150 4x4 with 351M & NP435 trans?
This potential option seems like it would be simpler and cheape,r than using an FE flywheel or an L&L flywheel with the 351M/400 bellhousing.
engine: '68 429 ThunderJet (Neutral Balance)
Thanks
Freshman User
Joined: Feb 2007
Posts: 28
Likes: 0
From: high level ab. ca.
I recently swaped a 460 into a truck origanaly set up with a 351m the bell housing is the same i had to get a flywheel for the 460 though as the 351m uses a diferent crank pattern and the oil filter hole in the frame had to be elongated just a shade outher than that every ting fell right into place did it in one afternoon. Oh ya and i used td 4025 engine mounts.
Elder User
Joined: Apr 2003
Posts: 502
Likes: 0
The vintage 70's 4x2 bell and flywheel should work, and fit nice. However you will have to know if that flywheel is for an internally balanced engine-460. I'm pretty sure the 78/79 and later 460's are external balance, most of the early ones are internally balanced like your 429. Being 30 some years old, anything could be swapped, if the mill is still in the donor truck, check for external balance-easiest way is to look for the slug of metal offset behind the harmonic balancer(the internally balanced mills just have a sleeve). The trans should be the same?
My thoughts, hope it helps.
My thoughts, hope it helps.
Thread Starter
|
Junior User
Joined: Jan 2008
Posts: 67
Likes: 0
From: Central Ohio
crap... that's right! I didn't realize that the 460 wasn't an option until '78 and therefore would be externally balanced. Well... now I know why the L&L swap flywheel costs so much. lol
Thanks for the input! Glad I didn't buy any of the 4x2 parts yet.
Thanks for the input! Glad I didn't buy any of the 4x2 parts yet.
Elder User
Joined: Jan 2003
Posts: 822
Likes: 0
From: Ilion Herkimer
i run a 1978 460 from an ltdin my 78 f-250. i used l&l headers, motor mounts, atlernator and power steering brackets. as far asaflywheel i used a 360/390 flywheel along with a 360/390 clutch and preasure plate. never had any issues at all.
Thread Starter
|
Junior User
Joined: Jan 2008
Posts: 67
Likes: 0
From: Central Ohio
I had heard of people using an FE flywheel (360/390), but then read somewhere that the ring gear on the FE flywheel is incorrect for the 351M/400 starter location on bellhousing. Maybe that was bad info.
I'm planning to use L&L mounts & Headers, and a van oil pan & pick-up tube, but I'm undecided on the flywheel / clutch combo.
Thanks
I'm planning to use L&L mounts & Headers, and a van oil pan & pick-up tube, but I'm undecided on the flywheel / clutch combo.
Thanks
