250 header choices in a 65 mustang

[Rustang Racer]

What are the header choices for a 250? Mike doesn't sell them but so far I've found them from Clifford, Hooker, and Pacemaker. Off course a 250 was never stock in a 65 mustang so none of them are designed to fit. Has anyone else worked through this? Which one is good quality and would be most likely to fit, probably with minor modification? I would prefer dual outs.

 

[66Sprint6]

I think the headers for the 200 work on the 250 just the same...considerin im usin a 250 head on my 200 and everything works right. Might check around as I may be a little rusty, but im almost positive the 200 headers are made to work with the 144s all the way to the 250s
Matt

 

[Gene Fiore]

It depends on the type of header if they will work. I believe most shorty headers will work for either motor, but any long tube designs will not as there are starter clearance issues. Plus the 250's have a taller deck height than the 200's.

 

[cameljockey]

i am in agreeance i have a 66 stang w/ a 200 and am using the clifford long tube header with a 250 log head and even that is a very tight fit the inner side of the collector flange hits the bell housing and tranny cooling lines. a long tube header for a 250 will hit the frame or inner fender apron even though it physically fits the head itself this is because a 250 ci header will be made to clear the low mount starter of 250. Bottom line i was and stll am very dissatisfied with the form and fit of my clifford header if i had the money i would remove it and buy the classic inlines one but i don't b/c im saving up for the new head for the 250 i'm building

Keep sixn'

 

[FalconSedanDelivery]

I am using the 200 mounts and the headers fit great ( they were origonally bought for a 62 falcon with a 170 ) so I would verify the hooker number , I believe they are the same for a mustang with a 170-200, will check and post if they are not

 

[gary6768]

What are the header choices for a 250? Mike doesn't sell them but so far I've found them from Clifford, Hooker, and Pacemaker. Off course a 250 was never stock in a 65 mustang so none of them are designed to fit. Has anyone else worked through this? Which one is good quality and would be most likely to fit, probably with minor modification? I would prefer dual outs.

Using Clifford in my 67 but I had head milled at a angle on exhaust face to move header away from bell housing and starter. .100 and no clearance problems. A 250 will sit a lot higher in a 66 because of added width of block and added height (2 inches) hood clearance problems. using 200 motor mounts not the answer compounds the height problem. I used 69 mustang 250 mounts gary

 

[powerband]

For the genereal info I'll add:

The Hooker 6601 dual out - long tube headers won't fit the 250 without modification. The headers hug the bell to clear the steering gear and with the larger VeeAte sized bell, they interfere. As previously mentioned the taller deck height AND low mount starter AND larger bell contribute to the problem

Hooker made a set similar to the 6601's - the 6602's for mid 70's MAverick application. These are very hard to come by. Here's a comparison of the two.


The 6602's are on the 250 note the different 1/2/3 runners:

They do an amazing job of clearing a starter / bell:

I wound up with a PMRG starter on the 250. Maybe the 6601's with the small starter coud work but may hit BH unless flange angle machined:
:

By the way - the 250/Hookers only fit an early roundbody without a lot of BFH

Powerband

 

[mugsy]

I now have a '66 block with a '77 250 cylinder head in my '65 Mustang. The Clifford 6:1 header fit the original 200 motor and the 250 headed rebuilt motor I installed a couple years ago. The header flange hit the idler arm right between the two bolts on the frame in both scenarios(sp). One afternoon and an angle grinder was all I needed to make the necessary clearance. Made a big divet in the idler arm.

I'm not a big fan of the 6:1 design. The individual exhaust tubes open into a huge chamber. Lots of pressure loss with that expansion.

tanx,
Mugsy 8)