65 Fastback with a 351w, which headers should I use?
#12
The advice I was giving you goes for any year car with any style headers..If the footnotes say you will need to use a certain year mount and the dimensions need to be such and such it is pretty likely that you will need to follow the directions....Like I also said MY headers do fit YOUR car even if mine is a 68..
Last edited by frdnut; 02-21-2011 at 01:59 PM.
#13
And I don't have the 66 motor mounts which they claim you need to have for the swap headers. It was a total pain in the **** to get the motor in while using the 65 mounts, it took over 3 hours, and would prefer to not have to take the engine back out or swap the motor mounts as well
http://www.mustangsunlimited.com/ite...atkey=emustang
I do not have experience with Ron Morris mounts, but I thought they were only adjustable front to back.
I have never heard of the motors sagging to the right.
Last edited by noroof66; 02-21-2011 at 03:15 PM.
#14
The advice I was giving you goes for any year car with any style headers..If the footnotes say you will need to use a certain year mount and the dimensions need to be such and such it is pretty likely that you will need to follow the directions....Like I also said MY headers do fit YOUR car even if mine is a 68..
#15
JBA makes swap headers for the 351W in a 65/66 but you are going to pay a pretty penny for them (p/n 1653 for mechanical clutch, p/n 1655 for cable clutch). That said, JBA makes a top notch header.
FWIW, I did a 351W swap into my '65 fastback about 20 years ago before there were all the choices in parts that there are today. I used Alan Root heads which required custom headers for the '65 which weren't cheap. When it came time to redo the car in 2006, I decided I had enough with the tight squeeze of the 351W and went back to a 302.
I have the Ron Morris mounts and they work well.
FWIW, I did a 351W swap into my '65 fastback about 20 years ago before there were all the choices in parts that there are today. I used Alan Root heads which required custom headers for the '65 which weren't cheap. When it came time to redo the car in 2006, I decided I had enough with the tight squeeze of the 351W and went back to a 302.
I have the Ron Morris mounts and they work well.
#17
Look, I'm not trying to argue with you or anything. I'm just saying that you telling me that your hooker headers worked in your 68 means absolutely nothing to me as the engine bay in a 68 is much wider and I've never heard of anyone having issues with your setup. I also had a 68 fastback with a 351 c in it and did swap headers which fit much better, but the 68 is wider than the 65 obviously and your advice in so many words was that the hooker swap headers should work with my setup because they worked for yours. My response is that I'm not going to pay over $500 for a set of headers that someone says will work for a 68 when I'm not positive they will work for my 65, period.
#18
I agree, 65/66 and 67/68 are quite different when it come to space in the bay. Now i haven't read up enough on hookers to tell you how they fit on 65/66 but im sure they're plenty of people here who experienced/read about them and can drop a few comments regarding the pros and cons
-Blair
#19
ya, i dont see why it would hurt anything to break in your motor with cc headers but if theres a legit reason out there, Id like to hear it. Goodluck with your hearder hunt. keep us updated. btw, how much power are you making?
#20
I breifly installed a 351w in my 65 fastback about a year and a half ago. I ended up purchasing the hedman headers. The fit was tight and it required cutting the bolt ends on the shock towers. However I did not change the motor mounts. They were the stock 65 mounts at the time. I ended up getting everything in there and the headers just barely cleared the shock towers. However, because of the difficulty of changing plugs, working on the engine, etc. I pulled it back out and installed a rebuilt 289.