Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 383 or 406 small block?
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Old 09-02-2009, 06:49 PM
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Blazin72 Blazin72 is offline
You got a leaky spark tube...
 
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I don't think you need to fork over that kind of cash for a new block if you're going for 450-500 hp? I dunno, maybe you do. But, if you're gonna buy one of those blocks go with a longer stroke than 3.75". I think those blocks are good for at least 3.875" or possibly even 4.00". Keep the block at 4.125" to start with and each subsequent rebuild you can punch it out a little more and your engine will get bigger and bigger. Either the Dart or World Products block can go to 4.200", I forget which it is but that leaves a lot of room and it could quite possibly make it the last engine block you'd ever need.
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