FE Power Cylinder Heads

[Dumpling]

I was wondering about header flanges too...only two bolts per port?

[mike7570]

Jay, is the exhaust port spacing and bolt pattern on Your head a unique design, or does it match some other common engine so that header flanges can be bought off the shelf?

Maybe  (from 5.0 coyote) If they were cut apart it looks close

[thatdarncat]

Jay, is the exhaust port spacing and bolt pattern on Your head a unique design, or does it match some other common engine so that header flanges can be bought off the shelf?

I’m pretty sure Jay is planning on offfering header flanges to go with the heads.

[cammerfe]

Jay, I'm backing-up in the thread here, but when Brother Lon and I were doing his '67 Mustang project, we discovered that it wasn't so much the sheet metal of the spring towers, but the mount location of the upper arm pivot.

We removed the towers completely, but, in addition, we had to move the pivot points outboard as well, in order to give room to build headers that weren't compromised. Our goal was to have the pipes extend at least six inches from the head without any turn at all.

On the driver's side, it was also necessary to exchange the rag joint for a Borgeson universal.

The heads we used were a pair of Dove TPs with his 'Type II' exhaust ports. The runners in the second design are changed in size, location and shape.

KS

[e philpott]

Ken , I'm pretty sure Jays new head is not intended for shock tower cars unless heavily modified towers might be a maybe but doubt it or never say never until someone tries , these heads are more for the guy that has a chassis to take advantage of the 4 digit horse power , there are still plenty of heads available to make 850 horse power for concourse shock tower cars

[wcbrowning]

There is a company called Morrison (IIRC) in Australia or New Zealand that makes an EFI cast cross ram for the 351 Cleveland

Hi Jay,
Will that cross-ram intake system work on one of your regular intake adapters?  Because if it will, I think I'm going to have to make the jump to an EFI system)).
Thanks,
Dan

Sorry Dan, but the crossram setup will not fit my regular intake adapters.  The head is significantly different than any other FE head, and the induction systems I'm working on for it won't fit any other FE setup.

Sorry to hear that.  Any thoughts of a crossram system for the regular adapter in the future?

[jayb]

Kevin is correct, I will be offering laser cut exhaust flanges to fit my heads; they are not the same as any other design, as far as I know.  And Ken as far as the shock tower mods go, based on my measurements the upper control arm can keep its existing mounting location.  Don't forget that on these heads, the ports come out parallel to the ground, not pointed down at a 45 degree angle like a normal FE head.  I don't think that the pipes can come straight out 6" unless the shock tower is removed, but I'd be happy with cutting the tower back some and getting a 3" radius pipe in there; that would be much, much better than a normal FE shock tower header.

By the way, you guys may be interested to know that my arm has been twisted by a few notable FE folks, and so I'm pretty sure that I'll be doing a version of these heads with the stock FE exhaust port location.  First pass design on that is complete and I've 3D printed  what one port will look like:




With the flexibility offered by 3D printing the sand, it won't cost me any more to make this version of the head, except for the design time.  And I'm sure you've noticed that I have lots of spare time on my hands    I'll get 'er done, though.  I've got a couple cars that I don't want to cut the shock towers on, and it would be great to be able to run these heads on those cars.

[cjshaker]

By the way, you guys may be interested to know that my arm has been twisted by a few notable FE folks, and so I'm pretty sure that I'll be doing a version of these heads with the stock FE exhaust port location.  First pass design on that is complete and I've 3D printed  what one port will look like:

Isn't the head considerably taller than a standard head, even taller than a HR head? Wouldn't that put the port exit right up against the shock tower? I don't know the specifics about the dimensions of the head, but if that's the case, I don't even see how you could get a header tube on the port. Or at the very least the tube would have to be at such a drastic angle that flow would be severely compromised. Just guessing on this...

[jayb]

The head is very tall, but the exhaust port on the plastic head is in the stock location, so any exhaust that fits in a shock tower car should fit.

[fekbmax]

Going back to the piston profile,  will that be something you will be getting involved with or will this be left up to the builder to supply the combustion chamber and valve angle specks to the piston manufacturer?

[Joey120373]

+1 on the very nice looking stock exhaust port!

[jayb]

Going back to the piston profile,  will that be something you will be getting involved with or will this be left up to the builder to supply the combustion chamber and valve angle specks to the piston manufacturer?

I'll be providing the chamber info to CP so that they have the information necessary to build the correct piston for my heads.  Maybe Diamond also, but I have an existing relationship with CP so they will get it first.  In fact I hope to be ordering pistons for my dyno mule by the end of the week.  I'm going to have them designed so that they will work with either standard FE heads, or my heads.  That way I can do a head comparison test on the dyno.  Another thing I'm really looking forward to...

[TomP]

Looks to me like Jay's stock exhaust port would make the existing headers work better since the port is already dumping downward and not straight outward. Kinda like a Pontiac head. Looks like a good design.

[jayb]

Looks to me like Jay's stock exhaust port would make the existing headers work better since the port is already dumping downward and not straight outward. Kinda like a Pontiac head. Looks like a good design.

That was the idea behind the port design, Tom, you hit the nail on the head there.  The really bad tubes on a header for a shock tower car are the ones that come straight down, so hopefully the port design will smooth the flow out into those tubes.

[cjshaker]

That was the idea behind the port design, Tom, you hit the nail on the head there.  The really bad tubes on a header for a shock tower car are the ones that come straight down, so hopefully the port design will smooth the flow out into those tubes.

Makes you wonder why they haven't used that port design on all the other aftermarket heads.

I am curious, on the originally designed port, why you didn't go with a D shaped port? That seems to be the 'go-to' design on nearly all performance aftermarket heads. Is it because the port turn radius isn't short enough to benefit from it?