Vintage Mustang Forums banner

1 - 2 of 2 Posts
G

·
Guest
Joined
·
0 Posts
Discussion Starter #1
I recently purchased a 68 fastback with a 302 motor not the original. The seller said he thinks the motor is an early seventies. this is the number thats on the block 5J09E could someone help me decode this . Also what would the horse power be.
 

·
Registered
Joined
·
3,848 Posts
Where exactly did you get this #? This is a date code # that indicates an engine assembly date of Sep 9 1975. There is a casting code located on the block on a ledge above the starter. Near it will also be another date code. Keep in mind that it is possible that your 68 Mustang has a 289 block. In that case the assembly date would have been Sep 9 1965. The letter S is an inspection code.

65 FB "J" 302 lots of mods. 94 GT K&N only.
http://albums.photopoint.com/j/view?u=1590489&a=12113030&p=43871256.jpg
 
1 - 2 of 2 Posts
Top