Turning my 351 into a 408-418

[krisbassett]

I'm looking to make a solid 500hp which isn't an easy task at 6000ft elevation.

What about 2 small turbo's?

Another option I was looking at with the turbos was going with a 393 instead of the 418? My reasoning for the smaller engine would be for less work clearancing the block and if I'm not mistaken I could use a taller piston giving me more piston skirt and a better wrist pin location. I'm still pretty sure I could get the power I'm looking for.

This is will also let me get my compression ratio where I need it where as the others didn't offer as wide of range of pistons.

http://www.coasthigh.com/Ford-393W-Reverse-Dome-30-0cc-Scat-Based-Kit-p/12349-sca-586-f393-1.htm

Also I'm seeing that Milodon offers a 4 bolt main retrofit kit for 2 bolt main blocks. It adds 2 extra 3/8" splayed bolts on the 3 middle journals. They claim it puts an end to crank walk. Would this be better than a main girdle?

 

[ryan287]

I looked at that coast high set up and it included a cast crank. I thought if you were running boost you'd likely want a forged crank instead. My 393w had a cast crank and I always wished I had a forged crank. I just didn't like to think about it when I was running it hard, eventhough
the guy who built my engine would run cast cranks all day long in his mud drags up to 600hp.

 

[krisbassett]

They rate that kit to 600hp which is about 100hp more than I'm looking for. They offer this kit with forged crank but it's another $600 http://www.coasthigh.com/Ford-393W-Reverse-Dome-30-0cc-Pro-Street-Kit-p/12349-ps-f393w.htm

 

[krisbassett]

http://www.autozone.com/1/products/...-block-ford-performance-cartech-sa153.htmlave any of you guys read this book? And why do most places want a couple thousand dollars for it? I found it here for a decent price. Just seems odd most places want so much for it.

 

[krisbassett]

You can preview the book here http://books.google.com/books?id=T_-cFNRUlEkC&printsec=frontcover#v=onepage&q&f=false

 

[mavereq]

i went with afr 185's on my 408. it's nice being able to throttle out of stuff easily. i can't picture a need for boost on top of it with the stock wheelbase.

i really think a roots style supercharger is the way to go. boost is instantaneous.

 

[krisbassett]

I do know I can't afford a roots supercharger!

Quick question for those of you running the ford DIS system. Where can I find the whole cmp assembly fora 5.8l? Is the boneyard my only hope at this point or is there an aftermarket unit available?

 

[Viperwolf1]

I do know I can't afford a roots supercharger!

Quick question for those of you running the ford DIS system. Where can I find the whole cmp assembly fora 5.8l? Is the boneyard my only hope at this point or is there an aftermarket unit available?

Dorman 689-102. This will come with a steel or steel compatible cam gear. I advise changing it if you run a cast cam. You will need to make a sleeve to fit the block opening.

 

[krisbassett]

Do you have any links or pictures of the sleeve that needs to be built?

 

[Viperwolf1]

Do you have any links or pictures of the sleeve that needs to be built?

It's actually on the synchronizer in the picture above. Here's another. Sorry, I didn't note the dimensions for it.

 

[krisbassett]

Does anyone on the forum make these? My grandpa has a lathe if I could get the dimensions for it. But I'd definitely buy one if they are offered anywhere.

 

[krisbassett]

Anybody?

 

[Viperwolf1]

I'll look and see if I can find the dimensions. Mine is currently 1206 miles away.

 

[Viperwolf1]

I couldn't find the measurements but this thread will point you toward those who know. http://www.coloradoclassicbroncos.com/viewtopic.php?f=5&t=6464&hilit=synchronizer

 

[ryan287]

I have a Holley HP EFI, which is their version of the Ford DIS, and just modified my original distributor to operate as a cam sync. My local machinist made a cap for it. I too was having a really hard time finding a cam sync for the 351w block because all of them were for 302's.

Here was the article I used.... It was easier than it looks:

http://www.candbmotorsports.com/camsync.html

 

[EFI Guy]

The super awesome guy that originally designed those collars is a member here. But, I don't want to throw his name out there just yet. I believe he still has a batch of them on hand.

I was going to buy them all from him a couple of months ago because he didn't want to deal with selling them individually. I completely spaced it because there hasn't been a bunch of people asking about them.

I'll touch base with him and see if he still has them.

 

[Broncobowsher]

I also know of http://www.pricemotorsport.com/ for having them

 

[Ourobos]

I've ran everything from stock 302 to a 700hp N/A 418w.. Turbo, supercharged, N/a.. By far the best engine I've had was the N/A 418w. Especially for a big heavy truck. Expect to spend some coinage.