Stroker motor question
Thread Starter
|
Freshman User
Joined: Feb 2003
Posts: 30
Likes: 0
Stroker motor question
Here's an idea I've been kicking around and I'd like someone's comments on.I pull in a stock class with a 472 cid limit. I was considering a 370 boring it .030" over and throwing a 4.5" stroker crank in it.This should make a 471. Would this be worth the time & money to build this or should I stick with the 460 stroke? Thanks.
Freshman User
Joined: Apr 2003
Posts: 39
Likes: 0
Stroker motor question
Since this is a pulling truck, a longer stroke will give you more torque. So I'd say you're on the right track to make more torque while staying within your class. Maybe later if you decide to go up you can use the 4.50" crank, some 6.70" rods and swap in new pistons and take it up to 557cid (or more depending on overbore)
Hope this helps
Mark
Hope this helps
Mark
Freshman User
Joined: Apr 2003
Posts: 39
Likes: 0
Stroker motor question
Sorry, I just remembered something pretty important. I think if you use the 4.50" crank you'll have to change the rods to 6.70". If not I believe the longer stroke on the crank will pull the stock rods out of the bottom of the cylinder bores.
Sorry about the brain fart in the previous post.
Sorry about the brain fart in the previous post.
Elder User
Joined: Aug 2001
Posts: 508
Likes: 0
Stroker motor question
I'd think you'd want horsepower for pulling. In which case big bore short stroke is better. The big bore lets you get more air into the cylinders. You also might get a better rod ratio with the shorter stroke.
New User
Joined: Aug 2003
Posts: 2
Likes: 0
From: wisconsin dells, wi
Stroker motor question
If your putting this in a pulling truck, then deffinately go for the long stroke!! Torque is the force that gets you moving, horsepower is just a side effect of torque. by going with a longer storke your going to get alot of torque down low to midrange, but the motors power band will start falling off at the higher rpms. since your pulling you more than likely wont be turning more than 4500 or so, so i would stick with the long stroke and you wont go wrong. if you still need more advice, just call up your local engine shop and ask them for advice. hope this helps you. EMS844
Trending Topics
Freshman User
Joined: Apr 2003
Posts: 39
Likes: 0
Stroker motor question
Like the man said
HP is good but torque is what moves you. For a good example....just look at diesel engines, they make relatively small HP numbers but loads of torque for pulling and hauling.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Posting Guru
Joined: Apr 2000
Posts: 1,249
Likes: 2
From: Pryor
Stroker motor question
It all depends. Do they have RPM limits? Do they have gearing limits? If not then higher hp is the way to go. Think of it this way. If you could make 500 torque at 4000 RPM's or 500 torque at 8000 RPM's which would you want? 8000 RPM's. Why? Well, you can take the 8000 RPM engine and put twice the gearing in it and still be turning the tires at the same speed. Therefore you have effectively doubled your torque. Obviously the 8000 RPM motor would be considered a "hp" motor.
JJ
JJ
Freshman User
Joined: Jan 2000
Posts: 41
Likes: 0
From: Montana
Stroker motor question
We have a "94" 460 F350. If we stroke and engine will the computer work or can it be tuned to work with a storke change? Would an aluminum Head transplaant make as much power with less Computer problems? Do I need a different block to go to a Roller Cam. Where would a guy find out what the codes stamped on the blocks. I've read an article that stated the 88 to 92 block is the strongest will it handle a roller cam or it this a true statement. There are alot of informative People in this group So I think I'm comming to the Best place for this info. We haven't call hot rod shops yet Mainly because they don't drive wht we do and maybe some of have what we want to try out. Expreince is the best teacher.
