Why 557? What is the big deal?
12-10-2013, 03:25 PM
#11
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It also has to do with cylinder wall thickness, 4.5" bore verses 4.6" or larger. That's the reason the ZR1 is a smaller displacement than the Z06, they needed thicker cylinder walls for durability under boost. The big Pro Stock motors are billet blocks and 5" bore spacing or more. If you were looking to go NA than the 598's make more sense. You have a lot lower cylinder pressure and less stress.
12-10-2013, 04:02 PM
#14
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i don,t think that,s it,a4.375 and a 4.5 stroke crank from callies cost almost the same.as far as [assembled in china],the mentioned engine manufactors would not last long if they sold foreign junk,we are talking about high end packages here not chinese junk.
12-10-2013, 04:33 PM
#15
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LT5s can be taken to 415s or even 440s with new liners a guy developed years back. It will be cool when the aftermarket starts boring and stroking the QC4V and adding bigger turbos. But it won't be cheap.
Virtually everything for LT5s was custom and cut from a billet when they got heavily modded. Like 5k for crank, 3-5k for cams, and 2k for headers. Expect the same but worse.
12-10-2013, 04:34 PM
#16
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Gold MemberThread Starter
12-10-2013, 07:46 PM
#20
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Our 632's in the 33 have been great but a little high strung before the detune.
We have a 572 in the deck jet boat that took a s#$t after less then 1 season with a 1071 on top on pump gas so we pulled the tired 496 tall deck bus motor of the shelf and put the 1071 on top and bolted her in to finish the year,the 496 runs harder sounds better and go'es 8 mph faster then the 572 ever went.
We have a 572 in the deck jet boat that took a s#$t after less then 1 season with a 1071 on top on pump gas so we pulled the tired 496 tall deck bus motor of the shelf and put the 1071 on top and bolted her in to finish the year,the 496 runs harder sounds better and go'es 8 mph faster then the 572 ever went.
