harvey1944

Can someone please help & tell me exactly what this manifold was made for? I've had this thing for at least 30 some yrs. Got in trade. Here's all i know.

#1 the casting #is DOAM OR DOAH -9425-A, hard to read that 4th digit.
#2 it has HECHO EN MEXICO in a circle, I guess it means "Made in Mexico".
#3 firing order is 13726548
#4 date code is 28A1
#5 as u can see it's a 4 barrel solid big block iron

I read in one of my Mustang Mothly that some Mustang were made in Mexico in the early 70,s, is this one of them!!

Also i found a web Ford decoder that says the 4th digit "H" is eng # an "M" is an SVO#, i don,t know.

Maybe someone with more Ford knowledge than me can tell me what i have!!

I don't know why but i can't post attachment.
Thanks Al

kalli

i'd say rather the M (for performance vehicle option). And yes tis thing was fabricated in Mexico. Do you have the fulkl engine or just an intake, or a whole car?

The casting date you mention 3rd letter is a 0 (zero), not an 'O' (letter)
first number is decade (D=197x), 2nd number the year (0-9). so can't be a letter.
Early 70s design but built

your date code is wrong as well.
it's 1st digit year (0-9), 2nd month (A-M), 3rd and 4th day (01-31)
so that 2nd digit 8 might be B for february and that 3rd digit A should be 0,1,2 or 3

Deviousfred

DOAM OR DOAH -9425-A

D=1970’s
0=last digit (1970)
A=Ford (Generic)/Galaxie
M=Performance/Special Vehicle Operations (Incl Holman Moody)
or
H=Climate Control (1972-up)
More than likely M

9425=Manifolds, clamps, etc.
A=Not sure but I want to say Galaxie

I don’t know enough about this part to know what it actually is but someone else on here may know more about it.

urban_cowboy

If it is a DOAM, it is a 1970 Galaxie SVO part. "D0" means 1970. "A" means a part from a Galaxie. "H" in the forth position means Climate control division, I think. "M" is SVO Performance Operations. I would bet is a "M". So based on that, I would think it is an intake from a 1970 Ford Galaxie. I cannot find the specific part number DOAM -9425-A anywhere, but 9425-A often refers to various types of intakes.

Oh...Devious, you beat me to it.

Gary H

Probably a 351c intake if it has big ports. IIRC, 390-428's all have the same firing order as the early 302. 351w and 351c share that firing order. If there's no water neck on it then it's a 351c.

BTW, ford didnt start SVO until 1980.

harvey1944

I only have this manifold that i got in trade so many yrs ago don't rem when. But do you know what eng it was made for? 351, 390 or what!!

thanks again for the reply folks, big help
Al

urban_cowboy

Unless you can find the entire part number in a database, it is going to be hard to know what engine it is for just from the part number. I cannot find anything on DOAH-9425-A or DOAM-9425-A.

I found something else that states "A" in the third place means Ford Generic or Ford Galaxie. I found something else that states a "M" in the forth place means a performance part (SVO or Holman Moody part). Holman Moody was the official racing partner of Ford.

harvey1944

why does my posting rules say "you may not post attachment" I have some photo's of this manifold

Gary H

Probably not enough posts. Check your PM's

Gary H

Pics
http://www.mysticspeed.com/1243.jpg
http://www.mysticspeed.com/1244.jpg
http://www.mysticspeed.com/1245.jpg
http://www.mysticspeed.com/1246.jpg

Looks like a 351w to me, weird that it doesnt have the 4 extra bolts though. Not sure when they did away with them though. And since it has the 351w firing order on it... ;-)