Topic: Help Identify This Engine
in Forum: General Non-Vette Discussion
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Bladenboro, NC - USA
Joined: 1/22/2006
Posts: 1058
Vette(s): 1972 conv., sunfire yellow, blk interior, blk vinyl and convertible top. Off frame restoration with American Speed 383 stroker engine producing 500hp plus a 200hp NOS system. MSD ignition. Hooker super competition headers with chambered exhaust.
Guys I need your help in identifying this engine that is in a Nova that a friend just bought.
I don't have the block casting number but here's the numbers of the engine pad.
T10 24 TSD
SDC5B12926
I think the "T"= Tonawanda plant, 10 24=October 24th and the last "T"=truck engine but can't find what the "SD" means.
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Duncanville, TX - USA
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
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How 'bout a HINT of the year model?!?!?



Joel Adams
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Former Member
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Bladenboro, NC - USA
Joined: 1/22/2006
Posts: 1058
Vette(s): 1972 conv., sunfire yellow, blk interior, blk vinyl and convertible top. Off frame restoration with American Speed 383 stroker engine producing 500hp plus a 200hp NOS system. MSD ignition. Hooker super competition headers with chambered exhaust.
[QUOTE=Adams' Apple]How 'bout a HINT of the year model?!?!?
[/QUOTE]
Sorry Joel.
It's in a '71 Nova. It was advertised as a 396 but I don't think the 396 was produced after 1969. I know it's a BB but without the block casting number I don't know what the CI is.


Sorry Joel.


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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
They had the 396 in '70...
I haven't found that code in Chevelle-Nova-Camaro-Impalla stats of any year...it is a truck engine.
On 1970-and-later engines, the sixth character is the identifier ("C" = car; "T"=Truck) for the vehicle type, while the seventh and eighth characters are the engine identification code.
Since it is a truck engine, and probably around the 69-72 year model(presumably), it may very well be a 402...Adams' Apple 2007-08-07 21:07:06
I haven't found that code in Chevelle-Nova-Camaro-Impalla stats of any year...it is a truck engine.
On 1970-and-later engines, the sixth character is the identifier ("C" = car; "T"=Truck) for the vehicle type, while the seventh and eighth characters are the engine identification code.
Since it is a truck engine, and probably around the 69-72 year model(presumably), it may very well be a 402...
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Former Member
Send PM
Bladenboro, NC - USA
Joined: 1/22/2006
Posts: 1058
Vette(s): 1972 conv., sunfire yellow, blk interior, blk vinyl and convertible top. Off frame restoration with American Speed 383 stroker engine producing 500hp plus a 200hp NOS system. MSD ignition. Hooker super competition headers with chambered exhaust.
Joel, I've researched this all night and the more I search, the more confused I get. I agree that on the 70 and later engines, C=car and T=truck BUT I found 2 "TSD" codes on nastyz28.com. (TSD=1975 truck, 454 @ 215hp or 1977 truck, 454 @ 250hp) I don't think he's going to be happy with these findings since I believe he has bought a 1971 Yenko clone with a truck engine. 
Now if I can just find out what the SDC prefix code on the engine pad is.

Now if I can just find out what the SDC prefix code on the engine pad is.

in Forum: General Non-Vette Discussion
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