Stroker advantage

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dartfreak75

dartfreak75

Restore it, Dont part it!
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Everytime I talk to a fellow car guy weither it be a ford Chevy or mopar guy they always talk about their "Stroker motor" I even see it in here alot you see a ton of 408s and other stroker variations. Ever time I talk about my engine build the first thing people say is why ain't you gonna stroke it? So this leaves me to question... what are the power advantages to a Stroker? Other than cubes? For instance take two identical combinations same intake carb, heads, cam, compression, exhaust, bore, pistons everything exactly the same one has a 3.58 the other has a 4" stroke how much more power are we talking? 20hp 50hp.....? I'm just curious and inquiring minds have to know.
 
It’s power under the area of curve that is much greater and what makes it worth it. Engine masters has a good video of stock vs stroked which feature 2 SBM’s, a 360 vs 408. Check that video out.
 
dartfreak75 said:
Everytime I talk to a fellow car guy weither it be a ford Chevy or mopar guy they always talk about their "Stroker motor" I even see it in here alot you see a ton of 408s and other stroker variations. Ever time I talk about my engine build the first thing people say is why ain't you gonna stroke it? So this leaves me to question... what are the power advantages to a Stroker? Other than cubes? For instance take two identical combinations same intake carb, heads, cam, compression, exhaust, bore, pistons everything exactly the same one has a 3.58 the other has a 4" stroke how much more power are we talking? 20hp 50hp.....? I'm just curious and inquiring minds have to know.
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First of all, why would you build a 360 and a 408 with the same components? I wouldn’t. That’s the wrong way to do it.

The only real advantages are lower RPM and needing less gear.

In a drag race (or any race for that matter) if you have a 500 HP 360 and a 500 HP 408 and the 360 does makes the power at say, 6500 and the 408 makes it say 5800, the 360 will produce quicker ET’s or lap times by virtue of RPM and gearing.

Engine builders love to do strokers because it’s the “popular” thing to do. It’s all over the magazines, Internet, TV and everywhere else.

As someone who grew up following Modified Eliminator (rot in hell NHRA for killing the best Sportsman class ever) it’s always RPM over stoke length for me. RPM is HORSEPOWER, and HORESPOWER wins races, not torque.

Torque makes the tire smoking street guys giggle until you take their money.
 
yellow rose said:
First of all, why would you build a 360 and a 408 with the same components? I wouldn’t. That’s the wrong way to do it.

The only real advantages are lower RPM and needing less gear.

In a drag race (or any race for that matter) if you have a 500 HP 360 and a 500 HP 408 and the 360 does makes the power at say, 6500 and the 408 makes it say 5800, the 360 will produce quicker ET’s or lap times by virtue of RPM and gearing.

Engine builders love to do strokers because it’s the “popular” thing to do. It’s all over the magazines, Internet, TV and everywhere else.

As someone who grew up following Modified Eliminator (rot in hell NHRA for killing the best Sportsman class ever) it’s always RPM over stoke length for me. RPM is HORSEPOWER, and HORESPOWER wins races, not torque.

Torque makes the tire smoking street guys giggle until you take their money.
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I'm not building one I'm not planning on building one I was just curious to why people do so often why it's the popular thing to do. The components is to just give a a base line let says we did that would the fact that's its stroked give it more power and if so how much theoretically. The rpm thing makes sense.
 
rumblefish360 said:
It’s power under the area of curve that is much greater and what makes it worth it. Engine masters has a good video of stock vs stroked which feature 2 SBM’s, a 360 vs 408. Check that video out.
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I will check that out thanks
 
If you're asking about a drag strip application which I'm almost positive you're not I would ask @70aarcuda whether he's had better results with his 360 or his 408...
You know I have a 410 Stroker and drive mostly on the street but I have drag race that plenty.. There's a extremely noticeable torque difference.. that kind of spin your tires that will feeling..
And as far as any stock stroke 360 that thinks they're going to take my money I've got a little red button that says otherwise LOL....
IMG_20200616_180914.jpg

IMG_20190329_165752.jpg

:thumbsup:...:D...
 
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ride a bike with 170mm cranks, then ride the same bike with 175-180mm cranks. The 175 rides alot easier, requiring less pedal pressure to move the same mass because the 'levers' are longer. You do lose upper RPM torque as it usually drops with RPM after a point . There is a happy medium. Growing up, Murray and Huffy Cruiser bikes (big tire bikes) has the 170mm cranks and the Schwinns had the 175 or 180. The Schwinns were so much easier to pedal as they had more mechanical advantage on the longer crank arms. I think strokers are popular as they give you a 15-20% boost in CID with only 2 new components, crank and piston, as well as a huge boost in torque that is great for street driving. As Yellow Rose stated, I think drag apps would rather have the increase at the upper end with the stock stroke and higher RPM potential without the higher piston speeds of a stroker.
Question: "Why don't you stroke it?"
Answer: "Because it will cost me another $800"

Source: Me, owner and builder of a shoestring budget 360-402 stroker LA. (STD bore!)
 
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j par said:
If you're asking about a drag strip application which I'm almost positive you're not I would ask @70aarcuda whether he's had better results with his 360 or his 408...
You know I have a 410 Stroker and drive mostly on the street but I have drag race that plenty.. There's a extremely noticeable torque difference.. that kind of spin your tires that will feeling..
And as far as any stock stroke 360 that thinks they're going to take my money I've got a little red button that says otherwise LOL....
View attachment 1715578527
View attachment 1715578529
:thumbsup:...:D...
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So you need to spray to beat a stock stroke 360:rofl::rofl::rofl:..ain't saying much for that lame 410!!
 
stroked340 said:
So you need to spray to beat a stock stroke 360:rofl::rofl::rofl:..ain't saying much for that lame 410!!
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It's been well established that I have the slowest stroker on the internet....
Also it's been well-established that you can't even fix a thermostat... What is this two bolts and hose clamp that you had trouble with...
20150920_165020.jpg
image000000_01.jpg
 
yellow rose said:
First of all, why would you build a 360 and a 408 with the same components? I wouldn’t. That’s the wrong way to do it.
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You would on two accounts, 1, a direct comparison between cubes, all else being the same. 2, lack of money, just swap over the previous engines parts into the stroker and go.

The only real advantages are lower RPM and needing less gear.

In a drag race (or any race for that matter) if you have a 500 HP 360 and a 500 HP 408 and the 360 does makes the power at say, 6500 and the 408 makes it say 5800, the 360 will produce quicker ET’s or lap times by virtue of RPM and gearing.
Click to expand...
Now it’s down to games with the ; tire size, gear ratio, along with the engines ability to rpm, which is spring control on the cam profile.

As someone who grew up following Modified Eliminator (rot in hell NHRA for killing the best Sportsman class ever) it’s always RPM over stoke length for me. RPM is HORSEPOWER, and HORESPOWER wins races, not torque.
Click to expand...
The extra torque is get up and go off the line. The drag racing mention is to wide and carried to but shell it. While I also agree with what you say, it is more the area under the entire rpm range that makes the stroker a winner for most. And in most cases, the stroker will lets just say make an extra 50lbs. of torque. That’s hard to over come when you lack the torque in a 360 vs 408.
 
one of the biggest advantages of building a chevy stroker is you can say you have a 383 and sound cool...hoping people will think its a big block mopar
 
Have not had alot of luck with 408s....LOL....Not that they are not faster....just other crap breaking...
 
j par said:
It's been well established that I have the slowest stroker on the internet....
Also it's been well-established that you can't even fix a thermostat... What is this two bolts and hose clamp that you had trouble with...
View attachment 1715578534 View attachment 1715578531
Click to expand...

And thats all you got??..a picture that you repeat putting up when ever I respond to one of your comments..LMAO:rofl::rofl: geez,just as bad as that lame 410,to bad you live out there in that combat zone,I'd gladly show you '70 duster tail lights:eek::eek::eek:..
 
stroked340 said:
And thats all you got??..a picture that you repeat putting up when ever I respond to one of your comments..LMAO:rofl::rofl: geez,just as bad as that lame 410,to bad you live out there in that combat zone,I'd gladly show you '70 duster tail lights:eek::eek::eek:..
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That picture should be in your avatar..
When someone can't put two bolts and a hose clamp on correctly there not someone that scares me at the drag strip...
Getting my motor called lame by the forums biggest douchebag doesn't have the punch that I think you were hoping for... LOL...
I wouldn't live on the east coast if all expenses were paid...
 
Just an FYI I didn't even know it was happening downtown until my friends and family from the East coast let me know about it LOL if you don't live downtown or go downtown and don't watch the news you wouldn't even know anyting happened...
 
j par said:
It's all the extra torque breaking Parts LOL...
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Had an exhaust valve break....had a small cotter pin get into #2 cylinder and crack it....and had a lobe go flat on a Hughes cam.....but they ran fast before that..
 
The biggest advantage in a longer stroke is more lower RPM torque. Just like going from a 340 to a 440.
 
How about 170 to a 225...

CRANKSHAFT STROKE
170: 3.125"
198: 3.640"
225: 4.125"

bore and head being the same. It is said the head determines HP potential and the stroke determine where that peak power comes in all things being equal. So the 170 and the 225 had the same HP potential but the 225 brought it in at a much lower useable RPM.
 
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