Help me pick my new motor build (please)

I have invested too much time into my tired 289. Its time to cut bait and do it right. It was a mystery motor anyway. Here is the deal, I have a great big Toyota thats really nice and has awesome running gear. The next thing in line is a motor. Running gear is well up to the task (im sure you dont believe me) and Im comfortable putting quite a few ponies in front of it. I want my toyota to be a Superduty Killer. They are quite fast for a truck, even when stock. We are about neck and neck in a race now. I am tired of listening to them brag about how fast their stock or "chipped" trucks are and am ready to make them eat their words. (wow, I feel better.)

Unfortunately I dont have a lot of hp # to compare with because my 289 for some reason has about as much power as a nice V6. All that I know is that my truck weights about 3300# and I have 37X14.5" tires and 4.88 gears and a 5 speed and I want to be able to smolder them. I am going with the rule that its not a hot rod unless its a little scary. What do you think I should build and how much power do you think I need? My only requirement is I dont want aluminum heads (so ported stock, world, RHS, or GT iron heads).This isnt a daily driver so lets have fun. Whats the cheapest baddest way to get me some POWER! I do not want any chevy guys or 1ton deisel dudes to ever ask me why my V8 3000lb toyota cannot beat their 7000lb pig ever again(hurts even to type it)

High comp. ported head 302?
aftermarket head 331?
aftermarket head 347?
High comp. ported head 351w?
bad ass windsor stroker like 393 or 408, 427?

How much room do you have?If you can squeeze in a 351 based stroker that would be my choice for lots of 4x4 torque...If not go with a 347..Also when you say you want to beat these guys are you talking off roading or drag racing?

I am talking just on the street, I can fit a 351 but it seems I only get discouragement due to the weight, possible heating issues and swearing Im only going to break everything. Just so were on the same page, Everyone keeps saying Im rediculous and I could just put a 302 crank in my 289 with a good cam 10:1 and ported 289 heads and have a screamer for cheap. Do you think that would do the job? Of course Id rather not spend 10,000 if I dont have to, but it needs to do the job. 2nd most popular so far (from the guys around here) is the 347. Since my gearing is right where it should be and I think my weight (3000) is around your cars weight I think I could go off of your examples as far as comparing what certain motors with X amount of power would act like in my truck.

347 would accelerate more quickly, with good torque....408W would certainly have more torque, but also would certainly not accelerate as quickly. With your gearing and tire combination, I'm not sure which you'd need more lol.

I'm known for disliking windsor strokers...but for most trucks, I think this is the route I'd take. You might even be able to gear down a little when it was all said and done. BUT, when I think truck, I think 5000lb Ford/Chevy/Dodge monsters. A 347 might very well do you. I myself built a stock block 500+hp 347, and used it as a daily driver...and I bet that thing would have pulled your truck along with no trouble at all.

All of this being said, remember, it's torque that kills drivetrains. You may very well break a lot of parts with a Windsor stroker......but it might also be the only way to get what you're wanting out of it.

Sorry to not be much help here...but in the end you're the one that'll need to decide. I guess you might be able to break it down like this...6500rpm and under rev limit, do the Windsor stroker...any rev limit over that...do the 347.

Hope that last bit helps!

Cris

thanks cris, I wish I had more experience with each. my gearing in my T-5z is a 2.95 1st, and cruises at 2500 RPM at 55 mph in 4th gear. Im thinkin I really like how that 347 sounds. When do you want your max torque to peak in your usable rpm range -the end? (6,000) the middle (3,000) or as early as possible? That would help me a lot to see which I want. Because Im afraid of for instance to build a 427w and have it have 500ft lbs but act like an industrial motor (391I) that is slow to rev and is almost not as good in a light rig. Do you understand my analogy? Kinda like comparing a 351w to a 352FE
about the same cubic inch but the windsor acts like a smallblock and the FE acts like a tractor motor. I want acceleration!

lol...I have one of those 7000 lb chipped PSD...hard to imagine what it would do if it weighed 4000#

Take a look at this:

http://www.compcams.com/Community/Ar...?ID=1155060690

550 hp at 6000 rpm with a 517 ft lb at 5100 rpm runs on 93 octane. This dont rev like no 391 truck engine either. Hope your drivetrain is as good as you say it is.

This combo is very close to what Im putting in my 2900# mustang. It wont be something I have to pull out every year to rebuild and or change valvesprings cuz you have to rev it to the 7500 rpm to make power...it should run for years at that mild rpm. It will boil those big off road meats with ease
No stock or mild chipped 7000#er PSD will touch you.

Go with a 9.5:1 393 with some good heads and you'll have all the power and torque you want and still run on the cheap $hit.




BTW what do you have against AL heads?

Thanks Tim (ps I like powerstrokes-alot- however they pose a threat) That was my first Idea. A big Windsor Stroker that would have more than enough power that I could run 9.5:1 and not have to decrease life by running at 7000 rpm.

I just get nervouse about the different expantion rates of aluminum and my already "just asking for a heating problem" application

What about a bigger 302 based stroker like a 355 or 357 to get more torque?

If you have the room there will be nothing better then a W stroker motor.
Anyone that thinks these are slow revving has never seen a good one.If you do have any weak links in your drive train though this will find them but with some easy off the clutch and easy shifts it should all live for a while. If you are worried about the fit then I would do the 347. Ether way if you are going to be running a big heavy 37inch tire you need all the tq you can get. If you don't beleave that think of why it is though PSD keep outruning you TQ.
IMO a high revving small inch motor sucks in a 4x4 with big tires.
This is what I would build.
Scat 9000 crank 4 inch (408)
scat h beam rods
Probe pistons something that would get you around 9.5 to 1 cr
custom cam from cam reseach (not much more then a good off the shelf one)
roush200 heads
EDL air gap intake
good 750 carb.
This is a more streetable version of the one I have and mine is great. Even with a smallish cam you can have an easy 425-450 hp and way over 500tq and everything would be at a nice low rpm 1,500-5,500.
You build the 500hp 302 and the deisel will have 5 cars on ya before you can get it to start revving up.

Originally Posted by Fordota

Thanks Tim (ps I like powerstrokes-alot- however they pose a threat) That was my first Idea. A big Windsor Stroker that would have more than enough power that I could run 9.5:1 and not have to decrease life by running at 7000 rpm.

I just get nervouse about the different expantion rates of aluminum and my already "just asking for a heating problem" application

What about a bigger 302 based stroker like a 355 or 357 to get more torque?

Well...I hate to say this but while the T5Z is a decent tranny( I had one in a 90 LX supercharged 5.0) it is at its limit(actually way beyond) with the combo I linked too. A mild(er) 347(6000 max rpm 400+ hp 400+ ft lb easy) is what I would do...it will be a huge improvent over a tired 289.