Why are there not many 393 strokers out there??
04-24-2006, 07:03 AM
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Why are there not many 393 strokers out there?? I was wondering why i dont see many 393 stroker motors around here?? A bunch of guys are running 383s but I havent seen any 393's. I am planning a stroker set up and figured I would get the 4.1 crank to make it 393, anr there any downsides to doing this rather than staying with a 4" 383 crank?? Thanks.
04-24-2006, 08:29 AM
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Originally Posted by kumar75150
dont do it
too much stroke
i had a 395 and it ran good for about 2 years but was pretty tore up when we took it out
too much stroke
i had a 395 and it ran good for about 2 years but was pretty tore up when we took it out
04-24-2006, 08:33 AM
#4
Most engine builders hate motors that are out of square where the stroke is larger then the bore.
You will have a 4.1" stroke and only a 3.905 bore.
My personal suggestion would be to go the other way with your build.
Instead of doing the large stroke small bore setup you could do a large bore small stroke setup.
You use a stock crank and bore the motor with a sleeve kit to 4.125.
Now your motor is out of square but in a much better way.
Also the bore will make more power, and especially once you take advantage of the bore in your cylinder head choice.
Also one other reason you dont see many 395's is because the small amount of cubic inch difference you get over a 383 wont really gain much of anything.
You might see a small amount ot torque difference but more then likely no HP difference.
You will have a 4.1" stroke and only a 3.905 bore.
My personal suggestion would be to go the other way with your build.
Instead of doing the large stroke small bore setup you could do a large bore small stroke setup.
You use a stock crank and bore the motor with a sleeve kit to 4.125.
Now your motor is out of square but in a much better way.
Also the bore will make more power, and especially once you take advantage of the bore in your cylinder head choice.
Also one other reason you dont see many 395's is because the small amount of cubic inch difference you get over a 383 wont really gain much of anything.
You might see a small amount ot torque difference but more then likely no HP difference.
04-24-2006, 08:52 AM
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Originally Posted by JZ'sTA
Most engine builders hate motors that are out of square where the stroke is larger then the bore.
You will have a 4.1" stroke and only a 3.905 bore.
My personal suggestion would be to go the other way with your build.
Instead of doing the large stroke small bore setup you could do a large bore small stroke setup.
You use a stock crank and bore the motor with a sleeve kit to 4.125.
Now your motor is out of square but in a much better way.
Also the bore will make more power, and especially once you take advantage of the bore in your cylinder head choice.
Also one other reason you dont see many 395's is because the small amount of cubic inch difference you get over a 383 wont really gain much of anything.
You might see a small amount ot torque difference but more then likely no HP difference.
You will have a 4.1" stroke and only a 3.905 bore.
My personal suggestion would be to go the other way with your build.
Instead of doing the large stroke small bore setup you could do a large bore small stroke setup.
You use a stock crank and bore the motor with a sleeve kit to 4.125.
Now your motor is out of square but in a much better way.
Also the bore will make more power, and especially once you take advantage of the bore in your cylinder head choice.
Also one other reason you dont see many 395's is because the small amount of cubic inch difference you get over a 383 wont really gain much of anything.
You might see a small amount ot torque difference but more then likely no HP difference.
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04-24-2006, 01:42 PM
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So if I bought darton sleeves that come finished to 4.125, what needs to be done to the block to insert the new sleeves?? Do I just need to take the old sleeves out and pop the new ones in or does the block itself need to be bored a little?
04-24-2006, 01:44 PM
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I would go 4 x 4 (402) LS2
If you arent worried about the weight of an iron block a 4.125 stroke x 4.035 inch bore would be nice and torquey
You have high piston speed with the longer stroke as well. I would NOT bother with a resleeved block.
Cheers,
Chris
If you arent worried about the weight of an iron block a 4.125 stroke x 4.035 inch bore would be nice and torquey
You have high piston speed with the longer stroke as well. I would NOT bother with a resleeved block.
Cheers,
Chris
04-24-2006, 01:46 PM
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Originally Posted by brad8266
So if I bought darton sleeves that come finished to 4.125, what needs to be done to the block to insert the new sleeves?? Do I just need to take the old sleeves out and pop the new ones in or does the block itself need to be bored a little?
05-05-2006, 08:40 PM
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Originally Posted by kumar75150
dont do it
too much stroke
i had a 395 and it ran good for about 2 years but was pretty tore up when we took it out
too much stroke
i had a 395 and it ran good for about 2 years but was pretty tore up when we took it out
Probably has more to do with the install and the parts used, than it does the actual mechanics of the long stroke.
05-05-2006, 11:48 PM
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Originally Posted by alexf20c
Probably has more to do with the install and the parts used, than it does the actual mechanics of the long stroke.
and Lunati parts are pretty crappy too
you are an idiot