I've been on vacation and was able to read slot about strokers heads cams etc. Pretty sure I'm gonna go 408 with a roller cam, oil these days suck and I don't want to worry about wiping a cam. Still haven't decided on iron or aluminum heads. But I'm thinking 185s will be the biggest I go with. I still have no idea which intake I should run. Compression is gonna be kept to a max of 9.5:1. And the cam will probably end up as a custom grind.

Im nit going with the 408 for the extra power but more for the reliability. The rod ratio is better the "new" 408 kits are built to be strokers, the 392s are as well but they use use "stock" parts. True the 408 is more expensive but from what I've read the
Money is well spent. I need this engine to pull like hell down low, be able to run at 3200 rpm all day long, be reliable and not require constant tuning and last for at least 75000 miles. I'm hoping I'm choosing the right parts.

Conanski, can you run a dyno with the parts I've listed, I'm just curious. Not sure if you change cam profiles of not but I would like max power to happen around 4000 rpms (if that's possible)

What do yall think about my plan?

Thanks again for all the help
Will

 

Anybody? Hopefully conanski and blkfordsedan are still checkin this thread from time to time

Thanks again
Will

 

you may have to PM one of them and give the Http: Link to take them back here so they can make a reply easily...

 

If you're not going to rev this motor past 4000rpm then you're completely wasting your money with the forged 408 assembly.. it's just massive overkill. The only real weakness of the stock parts 393 are the con rods but even those won't be stressed in a 4000rpm motor and there's no reason to think those parts won't go 150k or more like any stock motor. Maybe see if you can find a basic 393 or 408 kit with upgraded rods, cast crank, and cast or hyper pistons, forged slugs are heavy in comparison and just put more stess on the other parts. As for building a motor that makes peak HP at 4000rpm.. it can be done but you'll probably just be artifically restricting it instead of utilizing it's full potential... which is kind of silly IMO. I can play with a few different cam profiles to see what it does but I'm pretty sure the stroker graph I posted back a few pages is right at the "sweet spot" where it makes max TQ and HP, and that is more than enough to wreck the stock transmission and rear axle in an F150.

 

Conanski,

I just read your reply with my quote. I have no idea why i said 4000 rpm. I meant to say 5500. I would like to make the power from off idle to 5500 rpm. With the gearing that im going to be running, etc I just dont see this thing spinning more than 5500 rpm. Plus it would seem to me that spinning a motor designed to pull like a monster wouldnt need to spin more than that, but i could be wrong.

I want to get the full potential from this thing. The motor is going into a toyota FJ80 with 1 ton running gear. I was going to use a ZF5, if it wont take the power, then ill run something else. What would you suggest?

I honestly dont have a budget, i have a goal and Ill do what it takes to achieve that goal. Altho, I dont want to spend 10 grand on the setup.

Thanks again for all the help, and tolerating my somewhat dumb questions.

Will

 

One more thing, if I stroke it, to 392 408 or whatever will It destroy itself if I lug it down low. We all know that sometimes when pulling people pull out in front of you, or pulling from a dead stop with a heavier than planned load the motor lugs down. Will it kill the stroker to do that.

Sorry for all the questions I'm just trying to learn as much as I can.

Will

 

It won't harm it any more than any other engine.

 

zukinut, any updates, decisions or anything ? My 351 build is along ur goals.

 

Bought a '68 f350. Motor is goin in that. Been sortin out dads mild build 351. I'm gonna do a 408 and probably go forged bottom end. Its probably overkill but I don't want to worry about anything when it's said and done.

Will

 

what heads an intake ?

 

Check out the windsor calssified ads at Corral.net.

They usually have a few strokers for sale over there. For example, one guy is listing this brand new SVO longblock for 5100.

BRAND NEW !!!!!!!!!!!! LONGBLOCK for sale!! PRICE IS $5100 picked-up......This is an aftermarket 4 Bolt mains, Block
I have just about everything for Engine, like Intake, Valve Covers, Lifters, Timing Cover, Oil Pan,Remote oil Filter, Balancer(Fluidampr), CHECK THE LINKS!!

SHORTBLOCK:
- 408ci.
- 4 Bolt Mains SVO Aftermarket Block
- 12.5:1 Comp. Ross Pistons for Trickflow R Heads(Probe made by Ross)
- H-Beam Rods
- 4340 Forged Crank- 28oz. balanced
- 700 Lift Custom Solid-Camshaft
- Crane Billet Timing set
- ARP Main Bolts
- ARP 2000 rod bolts upgrade

HEADS:
- Trickflow O-Ringed R(race) Series Heads
- 61cc CNC Chambers
- Custom Springs for Cam
- Titanium Retainers
- 10* Locks

Since it is an SVO motor I'm guessing it would be able to use a roller cam. I know it's not a perfect combo but if you put the right cam in that motor and top it off with a TFS intake, 30 or 42 lb injectors, 80-90 MAF, 75-80 mm TB you'd be set. Obviously you would need a tune. With the right cam and tune this thing could be a torque monster.

One thing about it, if you pick out a low rpm high torque cam, you won't have to worry about over-revving. I had a 800-4800 cam in my old 5.0 and it absolutely would NOT rev past about 5,000 with the SD or the MA conversion.

I am a fan of the Comp Cams Extreme 4x4 cams except as mentioned above, they are very rpm specific.

 

Not sure on heads or intake. To be honest this thing is prob on hold for at least a year and a half. I need to get some other things taken care of before I go spendin coin on an engine.

Will