ZL1 block found - Page 4

**427king** · #31 04-06-2007, 08:19 AM

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** · #32 04-06-2007, 08:36 AM

Was it Taylor engines?

**Hotrodpaul** · #33 04-06-2007, 05:27 PM

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

blueyenko · #34 04-06-2007, 07:00 PM

well i recieved a set of piston domes along with a zl1 cam 9181. pistons are #3947886 are the pistons correct for this motor or are they l88 ??

blueyenko · #35 04-06-2007, 07:59 PM

ANYONE NEEDING PICS DROP ME A LINE I'LL SEND A FEW SEND ME A PM WITH YOUR EMAIL ADDRESS AND THANKS TO EVERYONE WITH ALL FOR ALL THERE KNOWLEDGE

blueyenko · #36 04-07-2007, 07:52 AM

well i think the ZL1 is going to go up for sale , need to buy a 1968-72 corvette roadster so let see what happens taking offers

JChlupsa · #37 04-08-2007, 08:55 AM

I take it this is the block

http://sandiego.craigslist.org/pts/308016868.html

**427king** · #38 04-08-2007, 09:08 AM

Jeff, Im beginning to think you are a mole for the CIA on this site,with all your info and cutting edge technology

**427king** · #39 04-08-2007, 09:13 AM

I believe you will need to price it if you wish to sell it here. Im a buyer, but dont want to be used as a high water mark for the next guy. When you are ready and serious so am i.

JChlupsa · #40 04-08-2007, 09:13 AM

Cant take the credit for finding that listing, Someone on Team Camaro posted it and when I saw the M/T stamp it wasnt hard to put the two together.