engine removal

Reply Subscribe

Thread Tools

Search this Thread

May 12, 2005 | 08:01 AM

justine's77ford

Thread Starter

Junior User

Joined: May 2005

Posts: 92

Likes: 0

From: Grand Coulee

engine removal

wondering if any one can help. removing a 400 engine from an automatic C6 transmission. Manual says to remove the converter plug and bolts. First time removing an engine, is this necessary? Could this be done when the engine is removed. Friend told me he never did this. He has a manual though. Part 2- Putting a 460 in place of the seized 400. 460 has motor mounts still attached. Should just bolt right in right? all info would be great. thanks for your time.

May 12, 2005 | 09:20 AM

oldhalftons

Postmaster

Joined: Feb 2003

Posts: 3,439

Likes: 6

From: Spokane WA

It can a nightmare pulling a engine with the convertor atatched, I try to avoid it at alll costs unless the engine is seized and you just cant get to the bolts. your going to have to pull the engine forward 5-6" strait forward then up to avoid stressing the front pump and seal. It is actually going to be easier to pull the engine and transmission if it is a 2wd. Then you can seperat them easily.

The 460 will bolt to the 400 C6 but I think the convertor is different. the 460 won't bolt right in though, you will need 460 frame towers or conversion mounts from an aftermarket company.

what year truck is this?

Last edited by oldhalftons; May 12, 2005 at 09:25 AM.

May 12, 2005 | 01:02 PM

beeboy

Postmaster

Joined: Jun 2003

Posts: 4,191

Likes: 0

From: WA

you don't have to drain the converter to pull the 400. Take out all the bellhousing to block bolts. Then there are a couple bolts off the metal thing that sits between the block and the tranny, at the bottom that have to come off. I think there are 4 bolts between the flexplate and the converter you need to remove. Slide the engine forward a few inches, and up. The converter will stay on the tranny. You will need to turn the engine over to get to the bolts on the flexplate, so pull the plugs.

May 12, 2005 | 01:24 PM

monsterbaby

Hotshot

Joined: Dec 2003

Posts: 18,423

Likes: 9

From: iowa

yes you need to pull the bolts for the convertor, as far as bolting in place well it will bolt directly to that transmission they do use the same convertor just a different flexplate is all so use the one off the 460. the best way is to by conversion motor mounts for your truck from someone like L&L (cost about $100 but warrentied for life) doing the frame perches is more of a pain than it's worth. if it's a 4x4 you will need a rear or mid sump oil pan like from a van, and if you happen ot find a van 460 it's the closest to a direct fit because the van exhaust manifolds exit in the same place as the 400s but you will need the alt, and PS brackets for a 460 because the ones off the 400 won't bolt up (except with the torch to fit, paint to match method) but in reality it's not a hard swap, and I have done the entire swap in less than one day as long as you have the parts handy.

May 12, 2005 | 08:22 PM

Spectramac

Posting Guru

Joined: Oct 2003

Posts: 2,438

Likes: 0

From: Monroe, WA

If the engine is totally siezed, you may just have to leave the converter on the motor and be carefull to pull it out easy so as to not mess up the tranny's front pump bushing. Then just replace the front seal and put the converter back in the tranny after you get it off the 400. Make sure it goes in all the way, usually there is three stages to line up, one at a time. Just make sure the converter is all the way inside the bellhousing when you're done.

May 12, 2005 | 09:51 PM

oldhalftons

Postmaster

Joined: Feb 2003

Posts: 3,439

Likes: 6

From: Spokane WA

now is a good time to dump the juice transmission and put a stick in the truck

May 13, 2005 | 12:40 AM

monsterbaby

Hotshot

Joined: Dec 2003

Posts: 18,423

Likes: 9

From: iowa

If the engine is totally siezed it is much easier to pull the engine, and tranny together instead of trying to work that thing out without damaging stuff.