67 fastback motor mods.

[Travis77]

Has anyone pulled off putting a 351W with trickflow efi intakes under a stock hood of a 67 mustang? I know the Fastforward fastback did, but Troy is the only one I know of pulling this off. I have a roller block and would love to be able to put it in. I can't remember if I have ask this at this forum before, but I seriously have to make a decision on motor. Is the trouble of putting in this motor going to be worth it? If not, most likely going with a 331, and I could also go forced induction later if needed. Thanks

 

[65ShelbyClone]

I can't remember if I have ask this at this forum before, but I seriously have to make a decision on motor.

Then do a search.

A 351W wont be any larger than a 390FE, which was an option for the '67 GT. Everything else fits like a 302(and most parts interchangeable with one)If the EFI intake wont clear the hood, you can get carb-style EFI intakes with injector bungs.

Worth it? Not the EFI part, IMO.

 

[Pbum5]

Has anyone pulled off putting a 351W with trickflow efi intakes under a stock hood of a 67 mustang? I know the Fastforward fastback did, but Troy is the only one I know of pulling this off. I have a roller block and would love to be able to put it in. I can't remember if I have ask this at this forum before, but I seriously have to make a decision on motor. Is the trouble of putting in this motor going to be worth it? If not, most likely going with a 331, and I could also go forced induction later if needed. Thanks

Rad Rides had to machine down the intake runners at an angle and some are left uneven in size under the EFI. They figured whatever they lost by doing that would more than be made up for with the supercharger. They also might have lowered the mounting points of the motor since they were using a Fat Man suspension.

 

[Travis77]

Surely they did all that for a reason. I would love to be able to pull it off, but I would probably be happier with a 302 base motor. Knowone must put EFI on 351W much in classics. Because I haven't talked to anyone who has. Thanks for the replies.

 

[Edbert]

The big windsor is taller than a FE no? Regardles of that, putting the EFI on top of the 351W will not fit the stock hood. On my 67 with a 351W I've got a simple RPM intake with a holley and an airstream, they wont fit under the Shelby hood if I use a spacer, and the Shelby scoop gives me an extra inch to play with.

I think you'll prefer the 351 over the 331, all you need is a cowl hood.

 

[Travis77]

I might as well say go for it, with the 351. Edbert, got a couple questions for you. What kind of mileage do you get with that motor? Would you go with DSS again? Would you consider going with power R&P intead of manual. And how hard is it going to be getting headers and power r&p in my car using the 351W and most likely afr 205's? Lasly, are you happy with the automatic? I wish I have been paying more attention to this forum along time ago, it seems here people aren't affraid of getting away from stock cars. Thanks again for the replies.

 

[Edbert]

First thing...my car doesn't run (yet)!

I am planning on having the Painless wiring kit finished tomorrow except for the lights. Then I've got a long list of tidbits to complete before I fire it up for the first time.

I excpect my mileage to be directly proportional to my right foot. If I putt around I "could" see it as high as 18-20. Of course if I romp on it I could see 10-12.

Unlike other of the engine builders like Coast High performance I have never heard anything negative about DSS. The guy who built my short block had over 30 years experience building racing FoMoCos under his belt.

Since my car is not a daily driver I don;t see myself spending much time in parking losts other than the weekend cruise night type of thing. Back when I was daily driving a classic mustang I always disabled the power steering anyhow. I think if you keep the stock steering wheel a manual steering car is better than a power one, although I am probably in the minority there.

If you buy Hedmann Elites you will have no problems getting them to fit. See the pictures of my headers at http://www.edbert.net/randp.htm

My car originally was an automatic, while I do enjoy rowing the gearbox (my daily driver 2005-GT is a standard) I wanted a more relaxed cruiser for the classic. Plus a properly running auto is usually quicker in the quarter anyhow

 

[Travis77]

Thanks for the reply. If you were intalling a cowl for 67, who would you buy one from? There are several I have seen installed and most have terrible lines when finished out. About the power steering, I've got the global west coil over setup(uninstalled) but I feel if I don't go power r&p, I am not taking advantage of the $2700 purchase.

 

[Edbert]

My opinion...take it with a grain of salt...is that Power steering is not needed unless you have one or more of these conditions.

1.) Significant lack of upper body strenght.
2.) Major amount of low speed steering required.
3.) Replaced the stock steering wheel with a small aftermarket one.
4.) Very wide rubber, like 275 or larger tires.

Any one of those will make you wish for PS, but if none of them apply you MAY prefer the heavier feel of manual steering.

 

[THX 138]

the rad rides fast forward fastback used a GT40 intake witht the center machined down a bit.