Team Chevelle banner
Status
Not open for further replies.
1 - 7 of 7 Posts

·
Registered
Joined
·
8 Posts
Discussion Starter · #1 ·
I have a 66 Chevelle SS and am trying to find out if the engine is the original one that came with the car. On the trim tag the info is 66-13817, the build date is 12B. First of all is that 2nd week of 65 or 66? Now for the engine....The block date is a307 with casting #3902406. I think that the block is a 67 396 but I just want to be sure. Another problem is the the block must have been decked because on the engine ID pad there are no numbers or suffix code. The heads I believe are correct because they are dated L15, casting #3872702.
Any help would be apprecitated, thanks.....Eric Scharf
 

·
Registered
Joined
·
43 Posts
I don't have my "#'s book" with me so I can't comment on the cast #'s. But, the build date is dec 65 not 66. By Dec. 66, Chev. was producing 67 models. My car has a build date of 12C.
 

·
Registered
Joined
·
1,747 Posts
12B would be 2nd week of Dec 1965.
casting #3902406 shows to be used on 1967 396, 325hp, 350hp, 375hp, 2 & 4 bolt main applications.

------------------
Steve Strasemeier (70SS)
 
1 - 7 of 7 Posts
Status
Not open for further replies.
Top