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426 vs 516
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bradley6874 View Drop Down
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Joined: 05 Sep 2010
Location: salisbury md
Points: 1344 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bradley6874 Quote  Post ReplyReply Direct Link To This Post Topic: 426 vs 516
    Posted: 05 Oct 2013 at 7:20pm
First here is the rules you must run the club turbo . Its sealed everybody runs that turbo next no rpm limit, 466 cu limit ok that said would your choice be to bore a 426 out and leave the short stroke and turn the breath out of it or de bore a 516 and leave the long stroke for torque
You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul
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O.P.S. Heads View Drop Down
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Joined: 02 Jan 2013
Location: Iowa
Points: 574 		Post Options Post Options   Thanks (0) Thanks(0)   Quote O.P.S. Heads Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 2013 at 9:46pm
A longer stroke doesn't automatically mean more torque with a turbocharged diesel. More displacement does mean more torque, but a short stroke big bore 466 will develop as much torque as a small bore long stroke 466 if they are both tuned equally well. To me a 426 engine would be much easier and a better choice.

You can get to 466 C.I. using a 426 with a standard crankshaft without boring the block. You could also stroke the crankshaft and use the stock pistons and sleeves with the proper machine work done to the pistons. Either one would work well if done correctly.

Edited by O.P.S. Heads - 06 Oct 2013 at 8:41am
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DarrylinWA View Drop Down
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Joined: 12 Sep 2009
Location: Amarillo Texas
Points: 1898 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DarrylinWA Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 2013 at 10:35pm
You are going to have a major problem deboring a 516. I am having Gary Karlin in Ohio going to do some work for me on my 516. PM me and I will give you his info. I was going to do a 426 and we have a 480 CI limit, but it sounds like they are going to let me run this engine. We are limited to 3.5 turbo and I will have to go down to a 3.25.
B 10 Custom. Serial # 1001 D21, First D21 built 69 #4498 and Last D 21 Built #4609. 1946 MM UTU. And 2000, 2005 Pete's. AC custom Hauling.
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KevinON View Drop Down
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Joined: 07 Dec 2009
Location: Schomberg, ON
Points: 791 		Post Options Post Options   Thanks (0) Thanks(0)   Quote KevinON Quote  Post ReplyReply Direct Link To This Post Posted: 06 Oct 2013 at 6:53pm
We have a 505 limit here, and i think you could get it down there. I'm considering it.
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