Small block identification - The 1947 - Present Chevrolet & GMC Truck Message Board Network

charles oliver · 12-23-2003, 09:55 PM

Small block chevy

I hope some one can help me identify this number. I know the
engine casting number is behind the head flange on drivers side.
I have a 71 Jimmy and trying to figure out what I have.

I can't see the number behind the drivers side head the firewall is
pretty close. But the front of the block passengers side has this number V0729THG anybody tell me what the VO and THG stand for ?

Thanks
Charlie

Hutch · 12-23-2003, 10:06 PM

charles oliver
Engine ID Code Example: V0101CLJ - (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code)
Another example: T0830CTY - (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400)

Code Engine Plant
F Flint (Motor)
S Saginaw Service
H Hydramatic T Tonawanda
K St. Catherines, Ontario
V Flint (Engine) (McKinnon Industries Canada)
M GM of Mexico

1971 THG 307 conv.cab 200 2 K-10 & 1500

I found this at:

http://www.nastyz28.com/sbchevy/sblock.html#ecode

**breeh** · 12-23-2003, 10:07 PM

THG = 1971 307 conv.cab 200HP 2 Barrel K-10 & 1500

**breeh** · 12-23-2003, 10:08 PM

Hah! Hutch, you beat me to it!

charles oliver · 12-23-2003, 10:17 PM

I appreciate your help! I went to the website and found how it works.

I very much appreciate it.
Thanks
Charlie

12-23-2003, 09:55 PM	#1
charles oliver 68 camtruck Join Date: Mar 2000 Location: Harrison, Ohio USA Posts: 233	Small block identification Small block chevy I hope some one can help me identify this number. I know the engine casting number is behind the head flange on drivers side. I have a 71 Jimmy and trying to figure out what I have. I can't see the number behind the drivers side head the firewall is pretty close. But the front of the block passengers side has this number V0729THG anybody tell me what the VO and THG stand for ? Thanks Charlie

12-23-2003, 10:06 PM	#2
Hutch Registered User Join Date: Oct 2001 Location: Grapevine, Tx. Posts: 2,142	charles oliver Engine ID Code Example: V0101CLJ - (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code) Another example: T0830CTY - (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400) Code Engine Plant F Flint (Motor) S Saginaw Service H Hydramatic T Tonawanda K St. Catherines, Ontario V Flint (Engine) (McKinnon Industries Canada) M GM of Mexico 1971 THG 307 conv.cab 200 2 K-10 & 1500 I found this at: http://www.nastyz28.com/sbchevy/sblock.html#ecode __________________ John Hutchison Grapevine,Texas 68 1/2 t swb 68 Mustang 69 Jaguar 71 1/2 t swb 88 Supra CompTs6m 93 Escort GT 2005 Corolla XRS

12-23-2003, 10:07 PM	#3
breeh Recovering 67-72 Addict Join Date: Oct 2000 Location: North Bend, WA Posts: 1,788	THG = 1971 307 conv.cab 200HP 2 Barrel K-10 & 1500 __________________ 68 Short Fleet 4x4; 427; BTO Level 3 700R4; NP205; Dana 60 front and rear; 4" lift with 35's; Disc brakes; AGR variable ratio steering; factory bucket seats; factory tach and tilt. "Friends call me cruzer cuz I like fast cars and fast women"

12-23-2003, 10:08 PM	#4
breeh Recovering 67-72 Addict Join Date: Oct 2000 Location: North Bend, WA Posts: 1,788	Hah! Hutch, you beat me to it! __________________ 68 Short Fleet 4x4; 427; BTO Level 3 700R4; NP205; Dana 60 front and rear; 4" lift with 35's; Disc brakes; AGR variable ratio steering; factory bucket seats; factory tach and tilt. "Friends call me cruzer cuz I like fast cars and fast women"

12-23-2003, 10:17 PM	#5
charles oliver 68 camtruck Join Date: Mar 2000 Location: Harrison, Ohio USA Posts: 233	Thanks Guys I appreciate your help I appreciate your help! I went to the website and found how it works. I very much appreciate it. Thanks Charlie



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