360 to a 429

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Apr 14, 2015 | 05:08 PM

JakeNail

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360 to a 429

Recently my ol 68 truck with a 360 gave up the ghost (and most of its oil out the dipstick tube) so I started looking for a replacement motor rather than rebuilding the old one. I found a guy who has a 429 coupled with a C6 for a song. So My question is this... will that 429 fit in between that frame rails or will it take some doing to make it fit? I'm thinking its a simple mount change and it should be good to go but its always good to converse with others beforehand.
And as always thanks for all the input!

Apr 14, 2015 | 08:32 PM

68bumpside

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From: South Eastern Kentucky

i done a 460 swap in a 68 sometime ago and i think if i remember right i had some clearance issues with my PS gear box

Apr 14, 2015 | 08:50 PM

ultraranger

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From: El Dorado, Arkansas

The 429 has the same physical external dimensions as a 460. Lots of people have installed 460s in these trucks. The 429 should fit as well.

Exhaust manifolds would likely fit with no trouble. Headers designed for a 460 in a Dentside should fit without clearance issues in a Bumpside as well.

Engine perches would have to be changed.

Apr 14, 2015 | 08:58 PM

68bumpside

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From: South Eastern Kentucky

oh yeah thats what it was the headers we got for it were long tube car headers and they didnt fit in frame i think we got some for a 78 and it was almost to easy to swap

Apr 14, 2015 | 09:06 PM

68bumpside

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From: South Eastern Kentucky

here is the swap brackets at lmc Truck Parts and Truck Accessories

Apr 14, 2015 | 09:26 PM

ultraranger

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From: El Dorado, Arkansas

Quote:

Originally Posted by 68bumpside

oh yeah thats what it was the headers we got for it were long tube car headers and they didnt fit in frame i think we got some for a 78 and it was almost to easy to swap

Headers are designed more for the chassis they will be going in rather than the engine they will be going on.

Apr 15, 2015 | 10:43 AM

TigerDan

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From: The hills of No. Calif.

A few years back the Northern Ca. Chapter was building a mud truck. We started with a '72 F250 and swapped in a 460. I found a Dentside in my local wrecking yard with a 460 in it, bought the frame perches and motor mounts from it and the 460 was a bolt-in on the '72. Just to show you that there are factory parts available for the swap and you don't need any aftermarket swap kits or anything.