73 BB Heads
Thread Starter
Drifting
Joined: Jul 2006
Posts: 1,871
Likes: 6
From: Sault Ste. Marie Ontario
73 BB Heads
Hi Folks,
Can anyone tell me what these heads could be? I have a 73 454 orange block with blue heads. The car apprears to be mostly original but the colour of the heads have me a little confused. Would the blue heads be a factory replacement, or has someone been tampering?
P.S. I dropped the tank today and found the build sheet.
Can anyone tell me what these heads could be? I have a 73 454 orange block with blue heads. The car apprears to be mostly original but the colour of the heads have me a little confused. Would the blue heads be a factory replacement, or has someone been tampering?
P.S. I dropped the tank today and found the build sheet.
Thread Starter
Drifting
Joined: Jul 2006
Posts: 1,871
Likes: 6
From: Sault Ste. Marie Ontario
I pulled a valve cover tonight and here are the numbers I found.
From front to back..
B2273, GM10T, PASS, 353049.
The block code is T0223CWM.
If some one can ID the heads, I'd sure appreciate it.
Thanks.
From front to back..
B2273, GM10T, PASS, 353049.
The block code is T0223CWM.
If some one can ID the heads, I'd sure appreciate it.
Thanks.
Racer
Joined: Jan 2006
Posts: 265
Likes: 0
From: Bowie MD
I believe those were the heads Chevy had on the '73 corvette BB. Open chamber/oval port (large).
From what I've gathered, they were the best cast iron BB heads GM made. I'm rebuilding a 454 that had 049s on it, and am having the intake/exhaust on them enlarged.
From what I've gathered, they were the best cast iron BB heads GM made. I'm rebuilding a 454 that had 049s on it, and am having the intake/exhaust on them enlarged.
Race Director
Joined: Apr 1999
Posts: 15,135
Likes: 477
From: NM
Originally Posted by eastltd
I pulled a valve cover tonight and here are the numbers I found.
From front to back..
B2273, GM10T, PASS, 353049.
The block code is T0223CWM.
If some one can ID the heads, I'd sure appreciate it.
Thanks.
From front to back..
B2273, GM10T, PASS, 353049.
The block code is T0223CWM.
If some one can ID the heads, I'd sure appreciate it.
Thanks.
T0223CWM......1973 CWM Corvette 454 275 Mt
Looks right. Like was said, may have been the last paint can on the shelf
tom...
Thread Starter
Drifting
Joined: Jul 2006
Posts: 1,871
Likes: 6
From: Sault Ste. Marie Ontario
Originally Posted by nihil
I believe those were the heads Chevy had on the '73 corvette BB. Open chamber/oval port (large).
From what I've gathered, they were the best cast iron BB heads GM made. I'm rebuilding a 454 that had 049s on it, and am having the intake/exhaust on them enlarged.
From what I've gathered, they were the best cast iron BB heads GM made. I'm rebuilding a 454 that had 049s on it, and am having the intake/exhaust on them enlarged.
