Cadillac 429 rebuild

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Little bit more tech



The 429 has a unique bellhousing pattern but the dowel holes do match that of the Chevy small/big block meaning I can use a chevy bellhousing with no issues as long as I make an adaptor plate for the bolt holes


Transmission Adapters - GM/ Cadillac/ others - THE H.A.M.B.




http://cliff.hostkansas.com/pffimages/small_block_1.jpg




I now have two options I can buy a whole new gearbox bellhousing made from pressed steel that will cost me £360.........or I can drive to york and buy this Chevy one Chevy 4spd Gearbox+bellhousing | eBay


Take the bellhousing off then sell the box off for whatever I can get which will be a lot cheaper in the long run and the same bellhousing that I'd be buying except this one would be cast iron instead of pressed steel and it'd be an original


Just need to ask the guy if this one had a big block flywheel under it as I need to make sure I can get that flywheel inside the housing!
 
Little bit more tech



The 429 has a unique bellhousing pattern but the dowel holes do match that of the Chevy small/big block meaning I can use a chevy bellhousing with no issues as long as I make an adaptor plate for the bolt holes


Transmission Adapters - GM/ Cadillac/ others - THE H.A.M.B.




http://cliff.hostkansas.com/pffimages/small_block_1.jpg




I now have two options I can buy a whole new gearbox bellhousing made from pressed steel that will cost me £360.........or I can drive to york and buy this Chevy one Chevy 4spd Gearbox+bellhousing | eBay


Take the bellhousing off then sell the box off for whatever I can get which will be a lot cheaper in the long run and the same bellhousing that I'd be buying except this one would be cast iron instead of pressed steel and it'd be an original


Just need to ask the guy if this one had a big block flywheel under it as I need to make sure I can get that flywheel inside the housing!

I mentioned very early on Doc about the Cadillac Bell housing;) And you got all ****y with me. And said some rather nasty stuff, when I was trying to help you.

And the fly wheel for the ebay would be a 13" fly wheel, and you might want to keep the 5 spd.

You need a BOP bell housing to fit
 
I mentioned very early on Doc about the Cadillac Bell housing;) And you got all ****y with me. And said some rather nasty stuff, when I was trying to help you.

And the fly wheel for the ebay would be a 13" fly wheel, and you might want to keep the 5 spd.

You need a BOP bell housing to fit

Nope I don't need a BOP!

BOP will not fit without an adaptor, the 429 is completely unique! The bellhousing may fit I'm getting the guy to see if a full size clutch will fit inside as he has an 11" clutch in his spares pile which is what I'm using on the big block flywheel.

Anyway if that is definitely a small block bellhousing I'll buy it as I've just sourced a small block flywheel and clutch for £80 :D


Gearbox will be sold on after as the Muncie box is stronger and shorter. The 5 speed may be of use in a future conversion though
 
Right little bit more tech stuff from today :D


The Muncie plus Chevy bellhousing comes in at a lovely and compact 17.2"


The LT230 is 11.5" gearbox mating face to output flange end


This gives me a total length of 28.7"




Now as a comparison the series transmission comes in at 27" but my engine has been moved all the way forward now so I should get a proper length rear shaft on there no problems even with the divorced adaptor although I may sort the box so I can bolt face to face in order to save 2" of space as that'd bring the box up to 30.7" overall if I use the divorced joint
 
Nope I don't need a BOP!

BOP will not fit without an adaptor, the 429 is completely unique! The bellhousing may fit I'm getting the guy to see if a full size clutch will fit inside as he has an 11" clutch in his spares pile which is what I'm using on the big block flywheel.

Anyway if that is definitely a small block bellhousing I'll buy it as I've just sourced a small block flywheel and clutch for £80 :D


Gearbox will be sold on after as the Muncie box is stronger and shorter. The 5 speed may be of use in a future conversion though

that is just a 4 spd with a over drive Doc and a rather good transmission and will Handel that engine. was used on upto 454 Chevy GM bigblock, 2 wheel drives
 
that is just a 4 spd with a over drive Doc and a rather good transmission and will Handel that engine. was used on upto 454 Chevy GM bigblock, 2 wheel drives


No its a 5 from the plate on the box


Anyway Rover V8 flywheel is the same size as a SBC it would seem......may just buy a 427 clutch and have the flywheel redrilled to take that set up. Would cost me less that way

Are you still able to keep the series front end?


Indeed ;) rads going in the back!
 
Turns out a 1966 427 corvette clutch can take 465ft/lbs........I reckon it'll take an extra 15ft/lbs no problem


Real steel will be getting a call on monday and I'll be buying one of them and redrilling the Rover V8 flywheel.....just measured it up and its the same size as the SBC one which is a bit annoying just finding that out :doh: however as the lathe arrives at my mates shed tomorrow it does mean we can probably start to design the adaptor for the flywheel
 
No its a 5 from the plate on the box


Anyway Rover V8 flywheel is the same size as a SBC it would seem......may just buy a 427 clutch and have the flywheel redrilled to take that set up. Would cost me less that way




Indeed ;) rads going in the back!

yes a 5 spd....... Was added to meet more MPG for fuel standards, just not called Overdrive but used as such
 
Turns out a 1966 427 corvette clutch can take 465ft/lbs........I reckon it'll take an extra 15ft/lbs no problem


Real steel will be getting a call on monday and I'll be buying one of them and redrilling the Rover V8 flywheel.....just measured it up and its the same size as the SBC one which is a bit annoying just finding that out :doh: however as the lathe arrives at my mates shed tomorrow it does mean we can probably start to design the adaptor for the flywheel

must be a good size lathe to swing 13 inches over the ways and chuck it up, 3 or 4 jaw chuck
 
No.....I said the flywheel would need an adaptor and need redrilling for the Corvette clutch


I wont do that I'll bring it to Malcolm and he'll get it done for about £30 and it'll be bang on as he'll have a dividing head to do it on
 
Who's shed is that? Messy fecker. First jobs, organise your workspace! Otherwise lose stuff, break stuff and hurt stuff.

So glad you ain't into bikes!

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opps i am....look whats bolted to him...

 
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Well.......it turns out that bellhousing will fit a big block flywheel in it. The guy tried with a 13.5" clutch cover and there was 1/2" either side so thats good news!


Inlet flanges are done and we started on the exhaust then changed our minds and put a new one on my disco instead. Disco now sounds lovely :) and the Caddy ones can wait until next thursday!

We've also pushed back putting it into the vehicle to a week on thursday as that means the bellhousing adaptor will be made up too!
 
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