You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
Just bought a new built 400+hp 351c. Got a sweet deal (2K, with a lot of extras: msd distributer, headman headers, edl intake and more) I couldnt pass it up. I want to drop it into my mostly stock 65 coupe for a sweet sleeper.
I have heard its possible, with little tricks like 64 falcon motor mounts and shorter intake. Im hoping to find someone who has tackled this combo.
I did some rough measurements, looks like it will be tight, possibly too tight. I would rather not mess with the shock towers. Any tricks or suggestions would be warmly welcome.
The deal also included some headman headers which might not work.
Also, I know the 351c runs a little hot. Any suggestions on a radiator that will work with minimal mods?.
This ad is not displayed to registered or logged-in members. Register your free account today and become a member on Mustang Forums!
Just bought a new built 400+hp 351c. Got a sweet deal (2K, with a lot of extras: msd distributer, headman headers, edl intake and more) I couldnt pass it up. I want to drop it into my mostly stock 65 coupe for a sweet sleeper. It's been done- works very well.
I have heard its possible, with little tricks like 64 falcon motor mounts and shorter intake. Im hoping to find someone who has tackled this combo. Nothing "tricky" about it. Stone-stock 65 Mustang mounts will work perfectly. The intake is up to you, if you get a tall one you'll need more hood clearance, but if you stay at or near stock height it'll fit. The rest is easy. The 351C will bolt-on to your 65 transmission.
I did some rough measurements, looks like it will be tight, possibly too tight. I would rather not mess with the shock towers. Any tricks or suggestions would be warmly welcome.
The deal also included some headman headers which might not work. Yeah, get headers intended for this conversion. It'll be tight, but it fits. Might take a few whacks.
Also, I know the 351c runs a little hot. Any suggestions on a radiator that will work with minimal mods?. You'll need a "5.0 conversion" radiator, and 1970 351C radiator hoses. Get the special heavy-duty plastic fan shroud, not the stock metal one, and a six-blade fan with thermal clutch. Use a 3-row rad, and make sure you have the correct special 192° thermostat. There is a brass ring below the thermostat, make sure it is in place, the special thermostat seals the bypass for improved cooling. The 351C "hot" reputation comes from people screwing around with this arrangement.
dodgestang has a 351c in his 65, i will eventually :P 351c and 4spd close ratio toploader should be fun
__________________
Founder Rmodel's Mustang Militia
“If ye love wealth better than liberty, the tranquillity of servitude than the animating contest of freedom, — go from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains sit lightly upon you, and may posterity forget that ye were our countrymen!”
~Samuel Adams
Why does everyone keep telling him to use Falcon motor mounts? The 260/289/302/ AND 351 all use the same motor mounts, therefore the stock 65 Mustang mounts will work perfectly. Now if he wants something stronger, aftermarket racing style mounts, for the 65 Mustang, will also work perfectly.
I have a set of these headers in the shop. We were going to use them in a Maverick with 4V heads. Still might drop one in there. The Maverick has the same engine bay that the 63-66 Falcon/Fairlane/Mustang has
What do you mean the car is mostly stock? You don't want to just drop a 400hp+ engine into a car with crap suspension, no chassis reinforcement and a wimpy trans.
__________________
Who cares how much horsepower it has, all that matters is how fast it goes!
13.20's with 2.25-2.30 60's, 40+ year old suspension sucks!
Best trap 107.11mph, we'll see what the new intake/carb setup does.
12.80 at 110.5mph NHRA DA corrected
I agree. If you are going to have an engine with more than enough power you will want to reinforce the chassis. This means subframe connectors and monte carlo bar and 1 peice export brace. You will need a stronger transmission. So, you will need to decide if its going to be an auto or manual and overdrive or not. You will also want to make sure it at least has a dual bowl master cylinder and front disc brakes.
Why does everyone keep telling him to use Falcon motor mounts? The 260/289/302/ AND 351 all use the same motor mounts, therefore the stock 65 Mustang mounts will work perfectly. Now if he wants something stronger, aftermarket racing style mounts, for the 65 Mustang, will also work perfectly.
For 30 yrs through word of mouth at car shows, magazines, and what not, if you asked someone "Can I install a cleveland in my 65" the stock answer was "Not unless you cut back the shock towers". Then the internet came along and these folks got to say it to an even larger audience and put together pages of 'information' that contain some things that are correct and other things that are not. Thanks to a few people who never listen a combination was put together that enables a person to bolt the motor into the car without doing anything to the shock towers as your link article recommends. Motor mount selection is key in the equation as well as header choice.
The 64 falcon motor mounts are the same ones used in early 65 model mustangs and have a 3 piece design. I am telling him to use them because I know that they alter the position of the motor slightly lower than the later 65/66 style mounts making it easier to install the headers on the motor.
I also recommend against using those tubular auto headers with the cross over design. They where in my car when I bought it and the fordpowertrain are a much better design, fit better, and allow the use of the front cross member (which had been removed from my car when purchased because of interference with the cross over tubes).
You will also notice I run a torque strap. While the motor fits and the towers are stock, I would never profess that it isn't tight I have less than a 1/8-1/16th to the towers with everything bolted up and in place the headers would contact the towers without a strap to limit motion.
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
351 cleveland 65 mustang
I have less than a 1/8-1/16th to the towers with everything bolted up and in place the headers would contact the towers without a strap to limit motion.
