393w/408w Cam?

[jbaeza94 10]

So i am getting a 393/408 stroker kit for my windsor block, but have been wondering what i should do in terms of a camshaft. Any suggestions? I am doing possibly a 750 carb. Feel free to suggest anything else!!!! I need all the help and expirience i can get!!!

[Blinkrazy 10]

Will you be putting aftermarket heads or at least springs? And hardened rods as well?

[jbaeza94 10]

Im not sure about new heads, what would you suggest? New springs and better rods for sure though.

[Nightowl 10]

When you are talking 393/408/ what are you referring to? I am trying to figure out what does what. I am assuming 351 windsor block?

[Blinkrazy 10]

Personally, I'm a fan of the afr 205 heads, but I've heard good things about the tfs and supposedly the edelbrock packages claim 400hp with their top end kit.

My heads were beginning to umbrella my valves so I just got a set of refurb ones with a port and polish, not sure how the performance changed, but she hasn't been running consistently for me to get her dialed in all the way.

[jbaeza94 10]

Nightowl, its a Windsor block. Ha, guess you missed it in the first post.

 

Blinkcrazy, did the 205's umbrella your valves? Do you know what caused it ?

[BuckeyeDemon 211]

choose your stroke first (makes no sense to go with a 393. piston choices aren't as good in my opinion).

 

then choose your cylinder heads.

 

then choose your cam.

[Nightowl 10]

My engine is cammed up, but I did this so many years ago, I have no idea what the lift and duration is. I assume that is what the 393/408 is? I think I either have a Crower, or Isky cam. I sure wish I would of written all this down, but when you are in your early 20's you just didn't care.

[BuckeyeDemon 211]

My engine is cammed up, but I did this so many years ago, I have no idea what the lift and duration is. I assume that is what the 393/408 is? I think I either have a Crower, or Isky cam. I sure wish I would of written all this down, but when you are in your early 20's you just didn't care.

 

393 and 408 are common cubic inches for the 351 based strokers. not lift/duration.

[sportsroof69 13]

If you don't put a GOOD set of heads on it, you're throwing money away by increasing the displacement.

[Nightowl 10]

How do you get 408 cu in. out of a 351 block, or is it some other block? I plead stupid.

[sportsroof69 13]

Increase the stroke. A 408 starts with a 351 block. Put a 4.00" stroke crank, and bore it to .030, and you now have 408 cubic inches, due to the increase in air volume being displaced by the piston being drawn farther down into the cylinder.

[Phils69 27]

I just did a test run last weekend on my new setup. 408/AFR205's, link bar lifters, FTI roller cam, custom convertor and new 750dp carb. I am very pleased with the performance. Be ready to spend some $ if you go with top of the line heads. You could do like I did 5 years ago and build a good bottom end and pick up some decent alum heads then upgrade in the future. A stroker with stock heads would be too constrictive to make good power. Make sure the rest of your drivetrain is ready for it also.

[Phils69 27]

Sports roof 69, dam fine launch off the line in your video. That thing hooks.

[sportsroof69 13]

Thanks :)

[Mike65 476]

Watched the video, nice launch. :clap:

[sportsroof69 13]

It does better when I don't let it walk out of the groove...lol

 

That was a 10.72 pass, and it's been 10.48 now. Now that it's cooled off, I expect more from it when I go next Friday. I believe the 60' in that pass was a 1.50. It went a 1.43 on the 10.48 pass, so I need an updated video :)

[Klutch 17]

Keep in mind that before the plethora of reasonably priced aluminum heads were available, people would port the factory, iron heads with great results.

 

Thus, even when buying a stroked Windsor short block, I think it would be a good idea to talk with some local machinists about getting the heads ported. It may be so expensive it's just better to buy some aftermarket heads. But you never know, the shop might need the work and cut you a deal.

 

And many an old-timer Ford racer has told me you can get great power from a set of ported 351W heads. I recall one analogy comparing stock heads with ported heads; "It's like Jekyl and Hyde".