All you numbers guy - I have a 327/300 body build date of B15. the engine casting is 174 . I cant see any engine code numbers on the front of the block , looks like the block was decked . So my question is.......... what would my engine code number be ? Base engine, 4 speed, no ac etc. I saw a Vin number close to mine, only 40 off if this helps (194676S101559) How do I figure this out ?

 

Your front stamp should have been FB15HE. The "F" would be if built in Flint, it would be TB15HE if Tonawanda. To the left of that would have been 6 then a sequence number starting with one followed by six more numbers which would denote the vehicle ID number which would also be under your glove box. The engine casting number for 327 was3858174 and in late production 3892657.

 

the VIN number is of no use in trying to figure anything other than the production sequencing of the car.
Bill

 

As per the NCRS Judging manual:
"The engine assembly date and suffex identification codes will appear on the inboard side of the pad, close to the water pump. The code format is VMMDDXX where "V" represents the Flint V-8 Engine Plant, MM represents the month ("01" through "12" for January through December), DD is the day of the month ("01" through "31"), and XX is the engine type identification suffex code. Example: V0428HT= "V" represents the Flint Engine Plant; "0428" is April 28; and the HT stands for a 1967 Corvette L79 350 hp engine with 4-speed transmission. The only acceptable engine assembly plant code is "V".

The engine type identification code for the 327/300 Base with Holley Carb. Hyd lifters and manual transmission is: HE.

The code for 327/300 Base with Holley carb, Hyd lifters, manual transmission and A.I.R. is: HH

With the build date of B15 that means your Corvette was built on September 15. The build date codes are:
A=August 1966
B=September 1966
C=October 1966
D=November 1966
E=December 1966
F=January 1967
and so on until L=July 1967

Using this system (if I didn't screw something up) your engine code # should be:V0915HE

Unless your Corvette has A.I.R. then it is: V0915HH

If I screwed it up hopefully someone will chime in.

 

Since your car is a 1966, the build date(month) on the trim tag depends on if it's a St. Louis body or AO Smith body. On a St. Louis body B15 would indicate a October 15 build and a B15 on a AO Smith car would be a September 15 build. Look at your trim tag and see if the body number starts with a S or an A.
Regards,
Page Campbell

 

Also on the pad would be part of your VIN number. The sequence for that is: 7 is for 1967, and the last 6 numbers of your VIN. Using the sample you gave it would be: 7101559

When reading the stamp pad from the front of the car the first set of numbers will be the VIN sequence followed by the assembly stamping.

The assembly stamping I gave in the other post is wrong. The date you gave B15 is off the vehicle identification number pad. The engine assembly date would precede B15 (Sepember 15) body build date.
The engine casting date is found on the right side of the distributor on the bellhousing mounting flange. The engine casting date must precede the engine assembly date. The casting date must precede the vehicle assemble date by less than six months. The casting date is an alpha-numeric code with the format MDDY where M is month ("A" for January, "B" for February and so on). DD is the day of the month ("1" through "31") and Y is calender year ("6" for 1966, "7" for 1967). Example would be: F27 = June 2,1967.

Now that you are totally confused it's time to go get another 12 pack!!

Shooter

P.S. Correct me if it's wrong because I do make mistakes (Just ask my wife).

The casting number (3892657) 5thVet was talking about can be found at the rear of the block on the left bellhousing mounting flange.

 

Thanks for all the replys -
its an A O Smith , casting 3858174 , body build b15 . So I'm thinking a engine code of I 7 5 would be Sept 7th of 65 right ? That would be in the right time frame I think.

 

wont the codes A thru E actually be 1965 for an early 1966 car ?

 

Nope. The month on the engine plant stamp was two numbers, not a letter; letters for the month were only used on the raised casting date codes and on the trim tag body build date code.

 

Yes.