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Old 04-22-2010, 07:05 PM
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350 to 383,how much more??

Hey Guy's
Well I have been kicking this around for a while now and thought I would throw it out here an see just how much more it would cost to go from a 30 over balanced 450 small block to a balanced 383? I wasn't satisfied with the smallish Crane Hyd roller that I have for it anyway and quite frankly it is going to seem fairly tame next to Pontiac 462 in the torque dept. So my thoughts are if I can move the rotating assembly and the Crane roller how much can I get a balanced rotator that is ready for SS duty? What would the machine work cost? If I can get a fair price for the small block stuff I would go this rout for sure! No replacement for displacement.....Anyone looking for a nice 30 over set up with Kieth Blacks and a Crane roller?

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Old 04-22-2010, 07:46 PM
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All you have to do is order a Scat cast steel 383 crank to drop in your 350. reuse the rods you already have. Order 383 pistons for 5.7 rods. Simple.
There won`t be any machine work unless you don`t know how to or are afraid to do some grinding. You will have to do a mock up assembly and check where the crank is making contact and grind the needed clearences, shoot for .050
This is the cheapest way to step up as you would only need the crank, pistons and a rering kit that includes rod and main bearings plus gaskets which is dirt cheap at Northern auto parts. You can place the 350 crank, crane cam and pistons for sale in the classified section of this site.
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Old 04-23-2010, 08:00 AM
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Quote:
Originally Posted by DoubleVision
All you have to do is order a Scat cast steel 383 crank to drop in your 350. reuse the rods you already have. Order 383 pistons for 5.7 rods. Simple.
There won`t be any machine work unless you don`t know how to or are afraid to do some grinding. You will have to do a mock up assembly and check where the crank is making contact and grind the needed clearences, shoot for .050
This is the cheapest way to step up as you would only need the crank, pistons and a rering kit that includes rod and main bearings plus gaskets which is dirt cheap at Northern auto parts. You can place the 350 crank, crane cam and pistons for sale in the classified section of this site.
unless balance is a concern... Pesky balance.
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Old 04-23-2010, 10:11 PM
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Yea well IMHO balance is key. If anyone has any plans at all to spin some rpms at all I'm affraid that balance is a must.....
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Old 04-23-2010, 10:22 PM
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Sure, that`s if it balanced for upper RPM use, since it can`t be balanced perfectly through the entire RPM band.
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