Cadillac & LaSalle Club Discussion Forum

Cadillac & LaSalle Club Forums => Technical / Authenticity => Topic started by: clarkent5477 on July 20, 2020, 11:49:46 PM

Title: Corroded 429 cylinders
Post by: clarkent5477 on July 20, 2020, 11:49:46 PM
Hi all: Looking for advice on a 429 that needs two cylinders sleeved due to corrosion. Anyone out there sleeved one of these before and have good luck?

Thanks in advance,

Clark
Title: Re: Corroded 429 cylinders
Post by: The Tassie Devil(le) on July 21, 2020, 01:09:27 AM
G'day Clark,

Never had a 429 sleeved, but almost anything can be rebuilt with sleeves.

I had sleeves in my 427 L88 BBC, and these were the "D" Sleeves, which were the thickest from what I have been told.

Once the sleeves were installed, the block was cleaned out to .065 oversize, which brought it out to 440 Cubes.

Correctly done sleeves will last virtually forever.

Bruce. >:D
Title: Re: Corroded 429 cylinders
Post by: PHIL WHYTE CLC 14192 on July 21, 2020, 02:22:24 AM
Hi Clark, just to second what Bruce has said, I had two sleeves installed in my 54 331 engine. All is good 😁
Title: Re: Corroded 429 cylinders
Post by: fishnjim on July 21, 2020, 09:09:17 AM
That would suggest a crack letting coolant to get inside.   I'd have the whole block checked for cracks, either dye/penetrant or magnaflux before I spent a dime on repairs.   Cylinder wall cracks are hard to see if it's corroded or honed/polished.
IF it can be verified that the water got into the cylinders from sitting outside, then maybe not as crucial.   
Title: Re: Corroded 429 cylinders
Post by: K_Cassutt on July 22, 2020, 01:03:26 PM
Best of luck.  My 429 is under the wrench for the replacement of freeze plugs and a crankshaft thrust bearing.