Need help decoding big block.......
Thread Starter
Race Director
Joined: Mar 2009
Posts: 19,777
Likes: 4,592
From: Canada's capital
2020 Corvette of the Year Finalist (appearance mods)
C1 of Year Finalist (appearance mods) 2019
Need help decoding big block.......
Heads are marked GM4T, pass side-3931063
drivers side-3964280. other no. J7\8
Block is GMT7, no 3963512 on rear surface,
clock at 5 o'clock dot on pass side
654
512 on rear face
PASS
1 PERF on front face
Serial pretty obscured, I can make out C?1673?4
Thanks for anything you can do. K
drivers side-3964280. other no. J7\8
Block is GMT7, no 3963512 on rear surface,
clock at 5 o'clock dot on pass side
654
512 on rear face
PASS
1 PERF on front face
Serial pretty obscured, I can make out C?1673?4
Thanks for anything you can do. K
Last edited by Kerrmudgeon; Sep 22, 2010 at 10:38 AM.
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
Heads are marked GM4T, pass side-3931063
drivers side-3964280. other no. J7\8
Block is GMT7, no 3963512 on rear surface,
clock at 5 o'clock dot on pass side
654
512 on rear face
PASS
1 PERF on front face
Serial pretty obscured, I can make out C?1673?4
Thanks for anything you can do. K
drivers side-3964280. other no. J7\8
Block is GMT7, no 3963512 on rear surface,
clock at 5 o'clock dot on pass side
654
512 on rear face
PASS
1 PERF on front face
Serial pretty obscured, I can make out C?1673?4
Thanks for anything you can do. K
The partial VIN starting with a "C" says it's out of a Chevy pickup.
Pro
Joined: Jan 2005
Posts: 644
Likes: 17
From: O'Fallon MO
Heads are marked GM4T, pass side-3931063
drivers side-3964280. other no. J7\8
Block is GMT7, no 3963512 on rear surface,
clock at 5 o'clock dot on pass side
654
512 on rear face
PASS
1 PERF on front face
Serial pretty obscured, I can make out C?1673?4
Thanks for anything you can do. K
drivers side-3964280. other no. J7\8
Block is GMT7, no 3963512 on rear surface,
clock at 5 o'clock dot on pass side
654
512 on rear face
PASS
1 PERF on front face
Serial pretty obscured, I can make out C?1673?4
Thanks for anything you can do. K
Could the serial number start with CE on the block which would then indicate it is a warranty motor.
Mike
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
Thread Starter
Race Director
Joined: Mar 2009
Posts: 19,777
Likes: 4,592
From: Canada's capital
2020 Corvette of the Year Finalist (appearance mods)
C1 of Year Finalist (appearance mods) 2019
You guys are great, thanks very much. So it looks like a warranty/replacement motor was installed in 1971. The car is supposed to be a 68 427 390hp 4-sp car, but I just got the vin, here it is, 194678S406634. Does that make sense? What else does it tell you? Thanks again, K
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
You guys are great, thanks very much. So it looks like a warranty/replacement motor was installed in 1971. The car is supposed to be a 68 427 390hp 4-sp car, but I just got the vin, here it is, 194678S406634. Does that make sense? What else does it tell you? Thanks again, K
Melting Slicks
Joined: Jan 2002
Posts: 2,132
Likes: 71
From: SOUTH SHORE Massachusetts
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