help on 1968 l89 numbers
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4th Gear
Joined: Feb 2009
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help on 1968 l89 numbers
HI
I AM NEW TO THE FORUM AND JUST BOUGHT A 68 L89 THAT WAS BUILT DEC 2, 1967. CURRENTLY HAS A CE BLOCK DATED LATE 69 AND HAS NO DOCUMENTATION TO PROVE IT BEING AN L89. WHAT WOULD THE CORRECT NUMBERS BE ON THE ORIGINAL ENGINE IF IT WERE AN L89. I believe the casting should be a 321 but what about the number? (3963512....IU)?
thanks danny
I AM NEW TO THE FORUM AND JUST BOUGHT A 68 L89 THAT WAS BUILT DEC 2, 1967. CURRENTLY HAS A CE BLOCK DATED LATE 69 AND HAS NO DOCUMENTATION TO PROVE IT BEING AN L89. WHAT WOULD THE CORRECT NUMBERS BE ON THE ORIGINAL ENGINE IF IT WERE AN L89. I believe the casting should be a 321 but what about the number? (3963512....IU)?
thanks danny
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Joined: Sep 2005
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In 68 the L89 option was $805.75 and there were 624 built. It was a 427/435 with aluminum heads, Holley 3x2 carbs, mechanical lifters, and a 4-speed. The engine code was IU. I believe the engine block casting number was 3916321 for an early production. Heads were 3919842. I can probably find more info if you need it. I have a 68 that was built in Dec of 67
Melting Slicks
Joined: Mar 2005
Posts: 2,187
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From: Chetwynd B.C.
Danny,
3963512 is a '69 427 2 or 4 bolt mains.
Here's a link I use. http://www.mortec.com/bbc.htm
IU is 427 L89 435 HP L71 engine with aluminum heads and 4 speed.
this is the link i used. http://www.corvette-world.com/corvet...tion_codes.php
shmoky
PS Both of you guys should fill out your profiles so we can know a little about you and your cars.
3963512 is a '69 427 2 or 4 bolt mains.
Here's a link I use. http://www.mortec.com/bbc.htm
IU is 427 L89 435 HP L71 engine with aluminum heads and 4 speed.
this is the link i used. http://www.corvette-world.com/corvet...tion_codes.php
shmoky
PS Both of you guys should fill out your profiles so we can know a little about you and your cars.
Team Owner
Joined: Sep 2006
Posts: 31,278
Likes: 4,372
From: Westminster Maryland
Hi Danny,
L-89..... NICE.
Since a CE block is a CE block, I think you need to check and hope that the original heads (number and date) went on the new block. That would be a very good thing!
Regards,
Alan
L-89..... NICE.
Since a CE block is a CE block, I think you need to check and hope that the original heads (number and date) went on the new block. That would be a very good thing!
Regards,
Alan
