ConcoursMustang Forums
Restoring - General discussions that span across many different groups of years and models => Drivetrain => Topic started by: DeadStang on October 19, 2009, 11:43:54 PM
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Does anyone know what the casting numbers are on 1969 stock 351W Exhaust Manifolds for a 4 speed car? Or where I might try to find them? Thanks!
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Believe engineering numbers for automatic and manual trans are the same - will check (checked - manuals show the same for both applications)
Can't make them out very well from the picture believe they might be C90E-9431 & C90E-9430 Think both may be -B but can be sure - sorry don't have any here at home
Here is were the engineering numbers are located
(http://i44.photobucket.com/albums/f49/firetrainer/69-70%20Mustang%20Pics/351W69exhustps.jpg)
(http://i44.photobucket.com/albums/f49/firetrainer/69-70%20Mustang%20Pics/351W69exhustds.jpg)
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Thanks! I didn't know they were different (4 spd vs AT) until I was at a swap meet last year. A machine shop guy who builds 351Ws showed me that the AT driver's side manifold opens directly rearward (as in your excellent photo), while the 4 spd manifold tilts slightly downward. He had a set to sell, but at the time I didn't need them (of course). I am going to my shop this afternoon, and I am going to try and see if I can see the numbers on my original 4 spd coupe, but this car is what you expect to see after 40 years and 300,000 or so miles, so I may no be able to read anything.
BTW, this site is great! I may not have anything even close to concours, but that doesn't mean that I don't want them to be as correct as possible for someone of my, ah, talent (or lack of). Thanks again.
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Thanks! I didn't know they were different (4 spd vs AT) until I was at a swap meet last year. A machine shop guy who builds 351Ws showed me that the AT driver's side manifold opens directly rearward (as in your excellent photo), while the 4 spd manifold tilts slightly downward. ................
Interesting - consider (far as I know) that both automatic and manual cars used the same H pipe and as mentioned don't see two different manifolds listed by Ford in the parts List I have. Are you sure the ones he showed you were 69's or possibly something different?
BTW, this site is great! I may not have anything even close to concours, but that doesn't mean that I don't want them to be as correct as possible .........
Believe there are many that are in the same boat as you and I believe that if we can provide the information many will choose to make their cars closer to original. Welcome