429-460 flywheel
Thread Starter
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Senior User
Joined: Jan 2006
Posts: 167
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From: Bethel,Ohio
429-460 flywheel
I put this post on the 73-79 forums with little response. I will try here.
I am putting a 429 in my 78 4x4 with the 4 speed and have been looking for a flywheel. I done a search on here and found a 390 or pre 79 460 will fit but done a search on autozone and found both but each has different part numbers. I searched for both using 2 wheel drive f250 with the 4 speed. What one should I use and what are some issues I might run into. I want to use a 12" clutch but read in one post about some bellhousing clearance issues. I am using my 351m bellhousing and it had a 12" clutch in it. I really don't want to spent the $300 for the L&L flywheel if I can keep from it. I did read about some issues with the flywheel thickness. Any help would be appreciated.
I am putting a 429 in my 78 4x4 with the 4 speed and have been looking for a flywheel. I done a search on here and found a 390 or pre 79 460 will fit but done a search on autozone and found both but each has different part numbers. I searched for both using 2 wheel drive f250 with the 4 speed. What one should I use and what are some issues I might run into. I want to use a 12" clutch but read in one post about some bellhousing clearance issues. I am using my 351m bellhousing and it had a 12" clutch in it. I really don't want to spent the $300 for the L&L flywheel if I can keep from it. I did read about some issues with the flywheel thickness. Any help would be appreciated.
Hotshot
Joined: Jun 2003
Posts: 12,339
Likes: 4,350
From: SW VA
I don't know much on this subject, but when I got my 460, it had a 429 crank in it. I swapped another 460 crank in it and used the same flywheel without problems. I am running an automatic however, and my block is from '69.
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
Strange, but the blocks for a 460 and 429 are identical. That is a 4.36" bore. So if your engine had a 429 crank in it, it was in fact a 429 not a 460 since the crank is the difference between the 2, plus pistons of course. Which means your post is impossible to do.
Thread Starter
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Senior User
Joined: Jan 2006
Posts: 167
Likes: 0
From: Bethel,Ohio
I was told that the 460 in 78 was not an option but autozones website offers it. Maybe for a swap. The junk yards around here are bare. Scrap prices where high this summer and they scraped everything.
