Engine Numbers - 1985 C4 - HELP!!
Thread Starter
Intermediate
Joined: Apr 2007
Posts: 45
Likes: 0
From: Lilydale Victoria
Engine Numbers - 1985 C4 - HELP!!
Hi All,
I'm frustrated
enough to the point where my last chance is to post a questions, I tried an online search, I tried searching this forums, so If I'm asking a repeated question I'm sorry....
Please can someone tell me where and how to find the engine codes on a 1985 vette - auto - coupe...
I've heard that there are numbers at the back of the block - (how the bloody hell to I get at them), and numbers on the front - (which side and behind what).... Any photos would be great and photo's with instruction even better....
Cheers
Shayne
I'm frustrated
enough to the point where my last chance is to post a questions, I tried an online search, I tried searching this forums, so If I'm asking a repeated question I'm sorry....Please can someone tell me where and how to find the engine codes on a 1985 vette - auto - coupe...
I've heard that there are numbers at the back of the block - (how the bloody hell to I get at them), and numbers on the front - (which side and behind what).... Any photos would be great and photo's with instruction even better....
Cheers
Shayne
Race Director
Joined: Dec 2003
Posts: 14,146
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From: Fremont Ca
2022 C4 of the Year Finalist - Modified
As stated at the right front.Look at the front of the head and then look at the bottom edge of the head..You should see a small pad,this is the block and theres the numbers.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
You can't see the pad without removing the a/c compressor. It's right above the left side water pump bolts. There are also some raised numbers in the side of the block itself that you can ID.
The stamp pad is the key though.
The stamp pad is the key though.
Thread Starter
Intermediate
Joined: Apr 2007
Posts: 45
Likes: 0
From: Lilydale Victoria
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Race Director
Joined: Jun 1999
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From: Merritt Ils Fl
Go here:
http://www.mortec.com/castnum.htm
Will tell you where all the numbers are and what they mean.
http://www.mortec.com/castnum.htm
Will tell you where all the numbers are and what they mean.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Not a good shot, but that lower left arrow is the area you need to check. It's flush with the block surface where the head goes, in front of the passenger side head. That opening just to the right of the arrow is the water pump port, the little hole above that the upper bolt. You'll probably have to remove the a/c compressor + bracket as one piece. This requires removing the accululator, removing the black bracket from the a/c to the header bolt, removing tensioner, and removing 2 nuts that hold it to the water pump studs. You also may need to remove the fuel lines from the rail to move it all far forward enough to see this number.
Le Mans Master
Joined: May 2003
Posts: 8,175
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From: Philadelphia Burbs
Cruise-In V Veteran
St. Jude Donor '06
I call 
...
... that's the best shot I've ever seen. I'm going to go out this weekend and try and clean it off (again
). At first, I was afraid the OP was another NCRS person (we also have to worry about the numbers). The NCRS judges actually use those fancy scopes to see them.
...... that's the best shot I've ever seen. I'm going to go out this weekend and try and clean it off (again
). At first, I was afraid the OP was another NCRS person (we also have to worry about the numbers). The NCRS judges actually use those fancy scopes to see them.
, thanks!!!
Le Mans Master
Joined: May 2003
Posts: 8,175
Likes: 237
From: Philadelphia Burbs
Cruise-In V Veteran
St. Jude Donor '06
