ZL1 block found

[blueyenko]

anybody know of any shop that might take the project on of repairing this block

[SuperNovaSS]

It would help if you could post some pictures of the areas needing repairs. Where in CA are you? I know a guy here that is pretty good. He fixes aluminum intakes for me all the time and fixed a ZL1 for me in the past.


Jason

[blueyenko]

NOT SURE HOW TO POST PICS ON THIS SITE ??

[Xplantdad]

Try here... https://www.yenko.net/ubbthreads/show.../page/0#199732

[jbsides]

Blue,

There used to be a machine shop that did high quality aluminum block repairs on Washington Blvd. in Whittier off the 605 He had a bunch of rare blocks he was just sitting on for years. Trying to remember the name of the place, but definitely remember the $8KUS to resleeve one cylinder (plus the repair) they did on one of Vic Edebrock prototype aluminum 427's about 10 years ago.

JB

[SuperNovaSS]

8K????? Seems a little excessive!

[shor]

i had my chevelle block re-sleeved for 100 dollars per cylinder. 800 bucks.
it is iron though, not aluminum

[427king]

Im fixing 2 right now, fixing these blocks isnt like fixing a broken ear on an intake. With all the welding there is warpage, porosity problems with the aluminum and a host of other issues.Ive even seen a zl1 where the entire cam jouranls and main webbing had to be built completely upo with weld and re machined... 3500.00 to 6500.00 is not out of line. Anyone can do the repair wrong,its doing it right that costs the extra money. And thats assuming it isnt a block thats non repairable. I just fixed a block that had to have part of a block digitially recreated, amazing to see te before and after pics..

[427freak]

Was it Taylor engines?

[Hotrodpaul]

Having done quite a bit of Aluminum welding, the entire Block must be preheated (600 deg F) or so before welding. Aluminum has a fairly high coeffecient of expansion so when the weld cools, it contracts, causing stress and warpage. Also, preheating allows better penetration of the weld due to less heat draw into the block. The Aluminum alloy will make a difference as well, cleanliness, etc. Welding on die cast parts is difficult because of the higher silicon content and general imputities in the Aluminum.

It can be done with the right steps.

Paul