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

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



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