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Old 11-05-2009, 09:58 AM
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383 Stroker Rotating Assembly questions

Folks, I'm preparing to build a Chevy 383 stroker which will live on the street in a pickup truck and I have a couple questions about the rotating assembly.

First, let me say that I'm building the engine pretty much from scratch. So far I have a 2007 marine 350 which I hope will donate the vortec heads, manifold, 4-barrel, ignition system, maybe rods, pushrods, some small parts. I can't see using the block 'cause I think it's been run in salt water and I know better than to trust it after that. But I also have a good 4-bolt 2-piece rear main seal block. So I'm thinking about the rotating assembly for now.

Assuming I use my standard rods, can I use an internal-balance crank if I choose the right pistons? If yes, is there any advantage to doing this? Is the external-balance crank just as good and any less expensive? I'm not stuck on using the rods I have, but would like to if possible 'cause I want to hold costs down. I don't have any flywheel or balancer yet.

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Old 11-05-2009, 03:23 PM
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On the street in a pickup= Use the external balance cast crank. These babies can handle 500+ hp. Use a 400 balancer and flywheel/flexplate. These aftermkt cranks have to be balanced. I sell/build lots of em..
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