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Identify engine in 69

3K views 23 replies 9 participants last post by  Step-a-Side 
#1 ·
Hi,

How can i see what engine was original in my 69 Chevelle?|
Can it be seen on the cowl tag of in the VIN?
thanks in advance
 
#4 ·
:cool: The only sources for that information are in the documentation that came with your car (such as the Protect-O-Plate, Window Sticker, Build Sheet, etc.). Neither the VIN nor the Cowl Tag (unless the car was built in Canada -- which it was not) will tell you anything other than a L6 or a V8. You can check the Fuel Line (assuming it's original): one line of 3/8th inch diameter is a good indicator of a L78 or an L72. A Fuel Line with a secondary (return) line indicates most other engine sizes..
 
#12 ·
i have no build sheet also.
it's a th400 car.
So in theory it could be this engines.
How are these in relation to which casting numbers from engines?
I can check Mortec, but it shows many engines

JE 396-4 350-L34 TH-400 A.I.R.
JK 396-4 325-L35 TH-400 C.C.S.
KF 396-4 375-L78 TH-400 A.I.R.
KH 396-4 375-L78 (w/L89) TH-400 A.I.R./Aluminum Heads
CJE 402-4 350-L34 TH-400 A.I.R.
CJK 402-4 325-L35 TH-400 C.C.S.
CKF 402-4 375-L78 TH-400 A.I.R.
CKH 402-4 375-L78 (w/L89) TH-400 A.I.R./Aluminum Head
MP 427-4 425-L72 TH-400 COPO
 
#15 ·
I have the chevelle listed in my list from ebay in aug 2007 and jan 2008, unfortunately that is before I started capturing seller info but below is a pic from that period.
 

Attachments

#18 ·
396 ↓
JA 396-4 325-L35 Manual A.I.R.
JC 396-4 350-L34 Manual A.I.R.
JD 396-4 375-L78 Manual A.I.R.
JE 396-4 350-L34 TH-400 A.I.R.
JK 396-4 325-L35 TH-400 C.C.S.
JV 396-4 325-L35 Manual A.I.R./Heavy Duty Clutch
KB 396-4 350-L34 Manual A.I.R./Heavy Duty Clutch
KD 396-4 375-L78 Manual A.I.R./Heavy Duty Clutch
KF 396-4 375-L78 TH-400 A.I.R.
KG 396-4 375-L78
(w/L89) Manual A.I.R./Aluminum Heads
KH 396-4 375-L78 (w/L89) TH-400 A.I.R./Aluminum Heads
KI 396-4 375-L78 (w/L89) Manual A.I.R./Heavy Duty Clutch/Aluminum Heads

https://www.chevellestuff.net/1969/engine_id_codes.htm
https://www.chevellestuff.net/1969/engine_id_codes.htm
https://www.google.com/search?q=196...3QQ9QEwAHoECAcQBg#imgrc=vurZQ1NgymX_rM:&vet=1

On the engine pad the first set of numbers on the left are from the engine factory and give you the date and designation of the engine as well as which plant the engine was built. The second set of numbers was stamped at the assembly plant and contains the year of assembly plant designator and partial VIN. If you only see the first numbers on the left, check the rough area near the oil filter. Some plants stamped the con Vin or partial VIN in this location. see attachment.

Your transmission will also have a con VIN stamped on the left side of the trans above the oilpan rail near the shifter mechanism if original.
 

Attachments

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