Turbo Headers for a 65 with a 351w

[65coupe408w]

Hi all,

I am in the process of swapping over my powertrain to my new fastback. I noticed that my Hooker Super Comps are likely not going to work as they will interfere with my power steering setup.

I had intended on Supercharging in the near future but now I am running into these issues I feel that maybe doing a single turbo setup would be a better route and avoid some of these clearance issues.

Is there a manufactuer out there that makes mainfolds and crossover to run a turbo on a 351w based motor on a 65 car? I am thinking about a 76mm turbo would work quite well with my 408w

Thanks in advance for any advice and info!

 

[brianj5600]

64-66 + 9.5 block + shock towers = no turbo. Change any of those and it is possible. There just is not a good way to get the exhaust forward. It is not easy in a 67+. I would look at a turbo bigger than 76mm. An 80mm would be the smallest I would put on a 408. 10secgoal has built several different turbo kits, but I don't think he makes what you are after. If it can be done he can do it!

 

[ForceFed70]

Anything is possible. But that is one tight fit. Nobody mass produces a set, you may be able to get them custom made. Send 10secGoal a PM.

There are lots of reasons to choose a turbo over a supercharger. Generally, clearance issues and/or lack of engine compartment room isn't one of them. You'll have a much easier time fitting a supercharger.

 

[Wicked65]

I talked to 10Sec about a year ago when i was looking at doing a turbo in my 65. He said there pretty much wasnt enough space with the towers. And we both know after installing those headers on a 351 in a 65, there is just no room. So, thats pretty much your answer. Mustang II front end.

 

[65coupe408w]

I have been working with 10secgoal and it seems that he will be able to fab up a custom setup for me. I need to get some more measurement as things are going to be tight but it sounds like we should be able to work something out.

I know this isnt an easy setup, but then again I seem to always take the road less trodden. It seems this way it keeps thing interesting! Ill be sure to post updates as things come together. As for right now I am still mid way through swapping powertrains in my cars so the turbo wouldnt be coming for a couple more month. I'll start a build thread when things get a bit closer to completion.

 

[brianj5600]

Standard shorties looped under the motor to get to the front?

 

[65coupe408w]

full custom headers by the sounds of it...I have plenty of room in front of the motor as it is setback from stock location. From there I will run a crossover and mount the turbo in the battery recess. I hope this will do the trick.

Once the car gets a bit closer to completion we will have a better idea of where everything is going to go.

 

[ForceFed70]

full custom headers by the sounds of it...I have plenty of room in front of the motor as it is setback from stock location. From there I will run a crossover and mount the turbo in the battery recess. I hope this will do the trick.

Once the car gets a bit closer to completion we will have a better idea of where everything is going to go.

Sounds very similar to my setup. And I thought things were tight in the 70!

Are you going to run an intercooler? Now THAT would get interesting! Tho it may be possible depending on how far back your motor is. Might want to consider a alcohol or water injection system instead (unless you plan to run low boost).

 

[65coupe408w]

I am contemplating running an intercooler although finding room upfront could be interesting. My car is running a Shelby R valance so atleast I have the large opening that I could squeeze something in also. My intent is to run 10-12psi max and or no more than 600rwhp.

I still need to finalize placement of some of the accesories on my motor before I move onto the turbo plumbing. I will start a build thread once the fastback is a little closer to completion...maybe after this weekend.

 

[jgstang]

65 shock tower mod

i'm doing a shock tower mod in my 65 vert for a 351W swap! i know it will fit w/o any mods but i like room to work so.....the way i'm doing it with GW uppers will allow me to use all stock style suff and have the room for headers...in fact i should be able to drop the motor in with the headers on...check it out, i dont see any reason why this will not work, i;m welding in 3/16 steel plate witch is alot bigger than stock and i'm able to trim alot away because the orig arms waste room by sitting away from the tower atleast an inch on each side, the GW will sit almost flat on the mounting plate.. when i install the motor i will post pics...Jim

i'll take better pics when the motor is in, this also allows more room between the master/tower.

 

[Wicked65]

Well, i did the same mod on my 65. But the problem is, the part where the upper control arms mount is actually where the headers run. Now, i had after market heads with higher exhaust ports, and 1 7/8th headers, which did not help at all. But when i dropped my motor in, there was no way to have both headers on. I was able to put the drivers side on, then slide the pass side from under the car. with the motor jacked to one side. both headers were touching the engine bay on both sides when i had everything in. So i had to massage things. After all the problems i had with fitment, i would never tell anyone to do a 351 swap without a MII front end, unless you have a stock 351 with small headers. But, my car could just be special. Because i have seen others with the exact same setup as me. Still SUPER tight, but not the issues i had. But, lets be real. these cars were not exactly rocketship precission when they were made.

 

[65coupe408w]

I just found this article with someone running Log Style manifolds on a 65 fastback. hes running a twin setup. I know Log manifolds are less efficient but I would like to hear peoples oppinions. Thanks!

This car is making 525rwhp and over 600ft/lbs

 

[blown65]

Just my opinion, but you can make all the power most any one would need with a turbo 347 and skip all the headaches of the 9.5" deal.

 

[65coupe408w]

Just my opinion, but you can make all the power most any one would need with a turbo 347 and skip all the headaches of the 9.5" deal.

But whats the fun in that?haha I have a fully forged 408w that I paid a pretty penny for, and its itching for some boost! For me this isnt all about a hp number or a track time its about being different.

 

[blown65]

But whats the fun in that?haha I have a fully forged 408w that I paid a pretty penny for, and its itching for some boost! For me this isnt all about a hp number or a track time its about being different.

I understand, but from the point of $$ spent you would probably be ahead changing to a 8.2 deal.

As far as being different. 99% of the cars would still be different than a 8.2 with a turbo.

 

[BubbaB1966]

Check out STS TURBO. they sell remote mounted turbo systems.

 

[zookeeper]

You beat me to it. Turbos don't need to go under the hood, look at aftermarket kits for newer Corvettes, they mount the turbos BEHIND the rear axle!

 

[brianj5600]

Rear mounts are known for high back pressure. It does not mean the can not make power, but there is a reason why most people put them up front. I think Dustin should make you a kit with twins on either side of the bell housing. Like a compound Hellion kit for Cobra/GT500.

 

[iskwezm]

How would you get the header bolts?