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  #1  
Old 08-29-2023, 09:35 PM
Devil Devil is offline
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Default ZL-1 Engine Block Uncovered

So I was at my friends place checking out his collection of rusty Chevrolet Performance cars, when he asked if I had ever seen his aluminum big block. I mentioned I had not, so it rolled it out from the corner. It is definitely cool, so I took some pictures of it and documented the numbers. Checking the numbers out today, it comes out as a 1969 ZL-1 engine Winters block. That was unexpected to say the least.













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  #2  
Old 08-29-2023, 09:48 PM
Bill Pritchard Bill Pritchard is offline
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Painted blue to try and disguise as a Ford engine?

Did it have a production date and application code stamped on the passenger side front pad?
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Old 08-29-2023, 10:52 PM
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1971ls6 1971ls6 is offline
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If the stamp is is one of the missing 69 engines, now you are talkin big money.

Is it for sale?
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Old 08-30-2023, 12:32 AM
William William is offline
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Based on the casting date location, that's one of the blocks re-issued in the late '80s.

Missing sleeves.
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Old 08-30-2023, 01:25 AM
thehornworks thehornworks is offline
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Wasn't the block under cut at the top for the sleeves to recess down.
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Old 08-30-2023, 11:41 AM
EZ Nova EZ Nova is offline
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Quote:
Originally Posted by thehornworks View Post
Wasn't the block under cut at the top for the sleeves to recess down.
YES, either counterbored for sleeve, or has a darker "sleeve" installed. I wonder if this is a "can-am" block with the treated cylinder wall to run with just the alum as a "sleeve".

My 1969 "052" ZL-1 block was painted orange when I got it as it was used in a dirt modified as a "cheater". It came out of northern Ohio around 2010.
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Old 08-30-2023, 11:57 AM
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You can see the step at the bottom of the bores for the sleeves to sit on. I don't believe there is enough material between the cylinders to run it as it is.
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Old 08-30-2023, 12:36 PM
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The only sleeves I have found that fit the 430 Can Am Block are the Darton sleeves 32160111.
And I have been waiting for them for over 2 years
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Old 08-30-2023, 12:45 PM
EZ Nova EZ Nova is offline
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My block as is when I bought it:
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'58 Apache pick up
'78 Z28 4sp being restored
'70 W30 convert TRIBUTE
'78 Z28 32,000 survivor, Og Yellow paint, AC.
'69 CANADIAN Nova SS 396/350 hp
'67 CANADIAN Nova SS 427 10 sec. driver
'66 CANADIAN Nova SS Race Car
'61 CANADIAN Pontiac Bubble top 409+/4sp (SOLD)
'31 ALL STEEL Chevy P.U. GONE (EX-WIFES NOW)
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Old 08-30-2023, 12:49 PM
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After "repairs" and set up for .904 Jesel solid roller lifters:
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'58 Apache pick up
'78 Z28 4sp being restored
'70 W30 convert TRIBUTE
'78 Z28 32,000 survivor, Og Yellow paint, AC.
'69 CANADIAN Nova SS 396/350 hp
'67 CANADIAN Nova SS 427 10 sec. driver
'66 CANADIAN Nova SS Race Car
'61 CANADIAN Pontiac Bubble top 409+/4sp (SOLD)
'31 ALL STEEL Chevy P.U. GONE (EX-WIFES NOW)
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