Hi I have a '72 Dodge Challenger the motor was a 225 but has been swapped with a 6-cyl out of a Swinger not sure of the year. The numbers stamped on the side of the block are 2806880-10 any ideas what this motor is? It has smaller spark plugs than the 225. Thanks for your help.

Al T wrote:
behind the coil there is a number engraved on a little lip by where the head meets the block . . . T226212."

Bill Watson from the Forward Look group provides this info:
=============================
For Chrysler's letter years :

First run through :
F - 1953
G - 1954
H - 1955
J - 1956
K - 1957
L - 1958
M - 1959
P - 1960 (except Valiant)
Q - 1960 Valiant only
R - 1961
S - 1962
T - 1963
V - 1964

Not sure about A thorugh E, but I believe it is :
A - 1942
B - 1946-49 (first series)
C - 1949
D - 1950
E - 1951-52

The second run :
A - 1965
B - 1966
C - 1967
D - 1968
E - 1969
F - 1970
G - 1971
H - 1972
J - 1973
K - 1974
L - 1975
M - 1976
P - 1977
R - 1978
S - 1979
=================
Since you have a 63, I think your block should be stamped with identification starting with "T" and you do. My 1960 has the block stamped (top edge of water pump housing) stamped with identification beginning with "P".

"vin 1 3 3 7 201635" definitions:
---------------------
1 Valiant line
3 upscale car line, V200
3 year, 1963
7 manufacturing plant number ( I forget which one)
201635 means 101635th car produced from this plant in this model year.
Hope this helps.

_________________
Lasse

Signet -66 225
Holley 600 Offy-5270 Dutra Dual,regrind. cam 272 0,420 110, head shaved 0.100 slight.ported
MSD6A
A904
7 1/4 3.23

Hi, and thanks so much for replying to my question. The problem is I got the number wrong in my earlier post the correct number is 2806830-10 it's a 3 instead of an 8. I couldn't find the tag you were talking about but it's really hard to see up behind the coil so I haven't found that number yet.

you have a 225 check the articles section on this website & look at the table listings of block,crank & heads, your casting number is listed