Small Block Decoding Help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

charles oliver · 05-09-2004, 06:33 PM

You guys have been tremendous in all the help i have gotten here. I know this has probably been beat to death but I need help deconding a motor
I am looking at buying this truck and it has a non original motor. He said he thought it came out of a 1979 Full size chevy and he thought it was a 400CU
Here goes. The number below the head is T07DUC 19S314669
I would greatly appreciate any help.
Thanks in advance.

Charlie

**john** · 05-09-2004, 07:36 PM

check here. John
http://www.nastyz28.com/decode.html

charles oliver · 05-09-2004, 08:36 PM

Thanks John. If I am reading this right the DUC says it is either a 1979 or 83 350 170 HP. Does that sound right ?
Charlie

Quote:

Originally Posted by john

check here. John
http://www.nastyz28.com/decode.html

JimKshortstep4x4 · 05-10-2004, 06:29 AM

It is not uncommon to have a suffix code used for more than one year. If you check your block casting date you can determine which year it is.

Jim

Blue Beard · 05-10-2004, 08:28 AM

John, thanks for the link...

Had a friend ask the other day on his motor what it was....

biggator64 · 05-15-2004, 02:06 AM

http://www.cehighperformance.com/c_t...lock_codes.htm

05-09-2004, 06:33 PM	#1
charles oliver 68 camtruck Join Date: Mar 2000 Location: Harrison, Ohio USA Posts: 233	Small Block Decoding Help You guys have been tremendous in all the help i have gotten here. I know this has probably been beat to death but I need help deconding a motor I am looking at buying this truck and it has a non original motor. He said he thought it came out of a 1979 Full size chevy and he thought it was a 400CU Here goes. The number below the head is T07DUC 19S314669 I would greatly appreciate any help. Thanks in advance. Charlie __________________ 71 GMC Jimmy 4X4 68 Huger Orange Camaro 454 with TH400 :gmc:

05-09-2004, 07:36 PM	#2
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	check here. John http://www.nastyz28.com/decode.html __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/

05-10-2004, 08:28 AM	#5
Blue Beard Registered User Join Date: Jan 2003 Location: Washington State Posts: 8,834	John, thanks for the link... Had a friend ask the other day on his motor what it was.... __________________ 1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo

05-15-2004, 02:06 AM	#6
biggator64 Registered User Join Date: May 2004 Posts: 3	sbchevy casting codes http://www.cehighperformance.com/c_t...lock_codes.htm __________________ Drive it like you stole it

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

05-10-2004, 06:29 AM	#4
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	It is not uncommon to have a suffix code used for more than one year. If you check your block casting date you can determine which year it is. Jim



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.