Interesting topic, I have installed a 4.6 in a 48 IHC 1/2 ton. It works great but have always been unsure of what fuel pump to use to feed the high pressure pump (stock '87 HP). Any ideas on ideal pressure and flow?

 

Hey fellows,

I know it's not a truck, but I saw a father and son putting a 5.4 out of a Lightning into a 32' Ford roadster. Looked very good. I saw it in a issue of Rod and Custom.

 

I dropped the hp pump from the Mustang into my older tank, also used the fuel gauge sender.

 

I would think that the regulator compensates for thins adequately, assuming that you have more than needed.

 

I am still workign at getting that 5.4 out of the van - it's going into an 82 F350, but I need the wiring harnesses. i think I will start a new post for this....

Hopefully, mine will be going in in a few weeks.

 

I would really like to find one of the DOHC engines for my Ranchero, would anyone have a source for either new or reman 4.6 DOHC's???? Heck, I'm not even sure what the DOHC engine came in besides the Mustang Cobra's?????

 

lincoln mark viii

 

Yup, Lincoln Mark VIII's had the DOHC's.

The Lincoln Navigator has a DOHC 5.4L (at least, some years), fordracingparts.com has a complete 5.4 DOHC assembly for $4400... you might need a computer I don't think it comes with it.

Check our sponsors first... one or two guys are Ford parts dept's, and they might be able to get a VERY good deal on a complete engine assembly.

A couple of notes on DOHC's:

The Mustang Cobra came with an aluminum block (made by Fiat at the time?), at least pre-2000 or so (not sure about now).

The Lincoln Mark VIII DOHC 4.6L uses an iron block. But with cross-bolted main bearing caps, there's no issue with strength.

The Navigator 5.4 DOHC has an iron block also. Again, no strength issues with it.

I can't immediately think of any other DOHC motors out there...

Good hunting!

 

Dave:
Consider the 5.4 3 valve from F-150 or Lincoln Navigator , they are wider & heavier than the 4.6 but have 300 hp from the get go.

 

Be careful with the 3-valve.

The computer interfaces closer to the ABS, air-bag module, and dash cluster.

We've discussed this sort of thing in the V10 forum and the general consensus from all the "gurus" is that it's too difficult to get all that stuff to work together.

If you have room for a 3-valver, you have room for a 2-valve (or DOHC) with a blower and get lots more power.

I'm sure it's possible to get a 3-valver to work, but the computer would have to be re-programmed to ignore lots of things. Plus the MIL light is on the dashboard, which uses the data serial link to light it, it's not just a light bulb wired directly to the computer anymore.

 

Thanks guys. Talked to the guy who owns the dyno shop we use and got some more info on the 4.6 DOHC with a ProCharger blower. Got the low down on the good IP heads and where to get the good crank and rods. I'm building a '67 Ranchero with a lot of body mods, I think the supercharged 4.6 with a 6 speed is the way I'll be going on it. Also checked the Ford SVT book, found a race ready 5.0 Modular (big bore 4.6). Kind of spendy, but some great numbers..... Have to see how the summer goes...

 

See fordracingparts.com - not sure who they are, and I'm certainly not saying you should buy anything from them, but they do have some nice stuff to look at. Drop-in new Ford motors of all kinds, etc.

I'm dreaming about a Triumph TR7 with a 347 (stroked 302) or better yet, a stroked 351W. The weight of the original 4 cyl was pretty high. I couldn't lift the block, while a 289 block was a piece of cake. And I was weightlifting big-time back then

 

A 408W with a 250hp shot of NOS would be awesome in a TR7

 

Look, I know the TR7 was the first monocoque (unibody) made in England, and they WAY over-spec'd it for strength/power so it's a VERY solid platform, but a 408 with a big shot of NOS?

Whaddya wanna do, make it a pretzel?

 

This question primarily for krewat, but anyone else please jump in; would you anticipate the same problems tying in a 4-valve motor as with the problems of importing a 3-valve? 3-valve probs only if you don't have a complete donor vehicle?
Thanks.