402,408,414,422...
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From: Clarksville, TN
402,408,414,422... What are the advantages of the different strokes compared to each other? I'm building a budget for a new motor (the Fiancée says I have to save the money before I place the order. She makes so much sense but boy is it a damper on my fun, hahaha) and I definately want to stroke it. What are the differences? (besides the obvious more cubes = more power)
Thanks!
Thanks!
Theres not going to be alot of diffrences. You just have to keep an eye on the bore/stroke ratio. If your stroke gets longer than your bore is round, then you "could" start running into oil consumption problems. Other than that, using more stroke builds more torque, more bore = more hp. It's pretty much whatever you want.
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From: Apopka, FL
Originally Posted by Beast96Z
Theres not going to be alot of diffrences. You just have to keep an eye on the bore/stroke ratio. If your stroke gets longer than your bore is round, then you "could" start running into oil consumption problems. Other than that, using more stroke builds more torque, more bore = more hp. It's pretty much whatever you want.
the 400 had a rod of 5.565 and a stroke of 3.75 ... a 1.484 ratio ... and it never had a problem with increased oil consumption
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Originally Posted by DramaFoYoMama
You have it backwards.
No he is correct, do some more research.
The 402, is a 6.0 with a 4" crank.
The is a 404.x is a 6.0 bored 10 over and a 4" crank.
The 406 is a 6.0 bored 20 with a 4" crank.
The 408 is a 6.0 bored 30 over with a 4" crank.
The 414 is a 6.0 bored 60 (which is the extreem) and a 4" crank.
There are 2 422's I believe.
One being a 6.0 bored 30??? with a 4.125 crank.
The other being a aluminum block with a resleeved 4.100 bore and a 4" crank.
I am not positive on the last few but I know I am in the right area. This should give you some examples.
I think a 414 might also be a 4.030 bore using the 6.0 with a 4.125" crank, but again I am not positive.
I personially wouldn't take the 6.0 motor past a 4.040 bore. The sidewalls get thin.
Also if you did have a problem you could rebore the same motor to 4.045 and not have to toss the block in the can.
I would suggest you keep your bore bigger then your stroke. 408 is a 4.030 bore and 4" stroke which gives more bore then stroke.
Better for making power.
Please correct me if I am worng as my memory isn't always perfect.
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From: Clarksville, TN
I've seen in a couple of posts people talking about a stroke/rod ratio?
Would getting this right help with longevity of the motor? What is "right" with this?
Would getting this right help with longevity of the motor? What is "right" with this?
