ConcoursMustang Forums

1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1964 1/2 - 1965 => Topic started by: michaelvonlanthen on October 11, 2017, 05:03:56 PM

Title: Engine Tag identification
Post by: michaelvonlanthen on October 11, 2017, 05:03:56 PM: Could someone please explain me my engine tag? According to Bob Mannels book Mustang & Ford Small Block V8, I should have an engine number 551-B (289 D-Code with automatic). On my tag there is the number 551-C. What means the letter "N" just next to the 551-C?
Thanks for your help.
Michael
Title: Re: Engine Tag identification
Post by: Josep on October 11, 2017, 06:15:40 PM: Quote from: michaelvonlanthen on October 11, 2017, 05:03:56 PM
Could someone please explain me my engine tag? According to Bob Mannels book Mustang & Ford Small Block V8, I should have an engine number 551-B (289 D-Code with automatic). On my tag there is the number 551-C. What means the letter "N" just next to the 551-C?
Thanks for your help.
Michael

Michael,

According to this information,
http://www.fordification.com/tech/enginetagcodes_6572cars.htm
The N looks to be the month of production, (Jan. 65..?)

Josep
Title: Re: Engine Tag identification
Post by: jwc66k on October 12, 2017, 12:37:04 AM: Quote from: michaelvonlanthen on October 11, 2017, 05:03:56 PM
Could someone please explain me my engine tag? According to Bob Mannels book Mustang & Ford Small Block V8, I should have an engine number 551-B (289 D-Code with automatic). On my tag there is the number 551-C. What means the letter "N" just next to the 551-C?
I can see a "4 G" as a build date, 1964, July, which would be appropriate for a "D" code. The "N" is for "engine number prefix" but a quick look at Mannel's book (Appendix A, pages 3-5) didn't specify.
Jim
Title: Re: Engine Tag identification
Post by: michaelvonlanthen on October 12, 2017, 07:02:28 AM: Thanks Josep and Jim for the tips. I found another topic with the same issue...
http://www.concoursmustang.com/forum/index.php?topic=14328.msg89100#msg89100
Title: Re: Engine Tag identification
Post by: krelboyne on October 12, 2017, 06:14:02 PM: According to the Mustang and Cougar tag Book by Kevin Marti, the N in the engine code prefix = Draft Tube - No PCV. (this is for 1965)