the EIN / Engine Identification Number is just a truncated form of the VIN / Vehicle Identification Number that the engine came from. unfortunately, that means that there's not a whole lot of information that can be discerned from the EIN beyond year and the plant that the car came from unless you've got a prefix of 7, 8 or 9 on the Sequential Production # portion of the EIN.
6 H 226988
6 == 1966
H == Flint Michigan
226988 == sequential production number, will match last six of VIN
6 D 10754
6 == 1966
D == Doraville, Georgia
10754 ==sequential production number, should be six digits
an SPN that began with "9" would belong to a Riviera, but that's not going to happen with a small block engine anyways. for 1966, all Rivs would have had a 401ci or 425ci Nailhead.
casting #s are very sketchy for these early engines so if you could have a look at the "Small Block Casting #" thread and help us out we'd appreciate it.
https://www.teambuick.com/forums/sho...number-project
the two letter Engine Code stamping will give you slightly more information, but not much:
https://www.teambuick.com/reference/...gine_where.php
your engines should be stamped
MA == 2 barrel carb
MB == 4 barrel carb and intake
MX == low compression export engine
ML would denote a 300ci 2 barrel.
"M" is obviously the year code for the Engine Code stamping. 1965s are all "L" coded and 1967s are all "N" coded.
https://www.teambuick.com/reference/...ine_number.php
how did you come to wind up with TWO 340ci engines in SWEDEN? those are pretty rare ( 1966 and 1967 only ) even here in the States.
Bookmarks