Any updates or last thoughts on upgrading the cam on a 460 EFI engine? I have been checking the options and the Comp Cams XE256H-14 (256/268 duration, .490/.495 lift, 114° lobe sep) is the only one actually advertised for stock EFI. The only reason I am wary of it is the wide 114° lobe separation; my experience is that 110° cams run better. Here are alternatives I found:
Lunati 61600 is rated 250/256 duration, .503/.524 lift and 112 separation.
Isky 311256 is rated 256/256 duration, .492/.492 lift, 32 overlap and 112 separation.
Isky 311256/262 is rated 256/262 duration, .492/.488 lift, 39 overlap and 110 separation.
Crane 350501 is rated 248/260 duration, .456/.487 lift.
Crane 353904 is rated 260/272 duration, .487/.518 lift.
Comments?
Jim

 

Here is a previous post by DeGideo:
Ford's SVO(now Ford Racing Performance Parts)1993 parts catalog offered a EFI460 cam part # M-6250-T460 with the following specs : 204 degrees duration intake/216 exhaust@.050" lift and .487" valve lift intake/.518" exhaust. Under camshaft footnotes it states : "Increased torque.Smooth idle with good all around performance.Designed for EFI use".They don't offer this camshaft anymore,but the one I put in my 1994 EFI460 engine is a Crane Cams cam with almost the exact specs.The specs are : 204 intake/216 exhaust@.050" lift and .487" intake/.519" exhaust."

The Crane 353904 specs at .050 are 204/216 with alift of .487/.518.
The Comp Cams specs at .050 are 212/219
The Lunati specs at .050 lift would be 207/213.
Jim

 

This is a great thread and really just want to keep it going.

Any performance #s from some of you guys that have all the boltons and/or cam setups?
Example: Deen, DocTorq, Borin & Strokin, etc...

My truck didnt even want to idle correctly when I added a K&N FIPK, so as bad as I want to do cam and headers, I must say that I am a little skeptical of the side effects. But you guys testify that the idle is satisfactory with cam and headers?

Thanks for the great info

Eric

 

I also found this thread had lots of useful info. A question? I'm converting my 88 460 EFI to carb with a special adapter on the stock intake. I am using the stock cam for now, but wonder what would be a good replacement? JSM84

 

ok, in order to keep this thread alive, shall we go on with pistons?
I purchased a revised '91 460EFI which had some small upgrades, of one being the keith black KB138 pistons. They have a 22cc dish in them, and should get the stock 8.4cr up a bit to 8.8cr.
I don't know why this piston was chosen, but i think about replacing them for much higher CR. Do the people here have some advices? Only piston i could find, was the domed KB401, with a -11cc dome on it... Should bump the CR up to 11. Can't find them anywhere however, and i'm curious if i can use ther rings from the 138 that are currently in... Engine has never ran yet...
Any info is very welcome.

 

I put a ford Cobra Jet cam in mine. 282 dur/510 lift. It has a slight lope at idle. It has great torque and man does it pull hard. The RV type cams are a great improvement.

 

I have a 93 that I just rebuilt. Put the comp efi cam in and the headman headers on. Just have to put the rebuilt trans in. Would a adjustable fuel regulator be a good upgrade?

 

IMO it's not really necessary with the batch fire injection.

 

I think that would be a good idea. I realize that this is ideally taken care of with the computer, but from the data I have read, the adjustable FPR allows for some fine tuning and therefore possibly getting those extra horses that are always being looked for.

 

Any updates on how this combo runs? I'm gathering parts to do a very similar rework on my '92.

 

I have a '97 SD 460 that I am looking to build this winter; I am going with ported F3TE heads (flow 300ish/200ish), and will run Crane's retrofit rollercam setup (not sure exact specs, approx 228/238 @ 050, 580/600 lift). I will be going with an aftermarket efi to make it all run. I will be dynoing it for tuning, and will post results. I would like to say it will be sooner, but in reality probably not. I wanted a MAF equipped truck, but got tired of trying to find one in mint cond, and found a mint SD truck. After talking to a couple of aftermarket efi places, they said no prob for working with the SD setup; the one is a plug-in, so I can still use the factory engine harness and everything.

 

Who did you find to help with the EFI? I'm shooting for a milder build than you are, but if I need some help with the SD stuff I'd like to know where to start..

 

On a 1994 460 efi does this motor use a roller cam or flat tappet cam?

 

Flat tappet

 

I live in Alberta, Canada. There is a big Mustang/Ford specialty shop in Calgary(pop. 1 million) called Western Motorsports. They fabricate their own stuff, and it's good too. They have a plug in system called S.D.S. (Simple Digital Systems), that will work with the factory SD and engine harness. There is a shop w/a dyno called Tecmotion that tunes with their systems, and has done all kinds of Ford vehicles, and has worked with the factory SD. Mathew is the proprietor for Tecmotion, and seems to know his stuff.

As for the heads, I'm going to use Reincarnation Automotive out of Tacoma, WA, who are 460 specialists. I'm not computer savvy enough to attach their website, but they are on the web, and have ported and flowed every 460 head out there, and seem to be really know their stuff. They have ported the E7TE and F3TE heads and gotten good #'s(290/190 and 305/200ish).

To make the roller conversion work, there has to be some machining done to the head, so I'm going to get them to port and assemble the heads. As for the cam, I'm not decided yet, either the 216/224 @ 050, 556/580 lift; or the next level 228/238 @ 050, 590/614 lift. I'll finalize the cam when talking to the Reincarnation boys.

I'm really looking forward to the dyno #'s when the time comes, the mill should be a monster, yet still decent fuel mileage and driveability.