Any correlation between 450rwhp and LS6 blocks?
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Re: Any correlation between 450rwhp and LS6 blocks?
I turned 453 RWH SAE with my original LS1 block and turned 456 RWH SAE with the Z06 block, but I had a ring /piston slap issue with the original block and that was the reason for the block "upgrade?"
JP.
JP.
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Re: Any correlation between 450rwhp and LS6 blocks?
I hear that the ls6 block is worth more than 3 hp over the ls1, there has been a few posts about this and one has a link to a gm high tec article explaining better bay to bay breathing, why else do the 02 cars seem to dyno 15-20 hp higher than older cars, how do you explain all the 02 cars with cam only and bolt ons pulling 410-425 with stock heads
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Re: Any correlation between 450rwhp and LS6 blocks?
I know why, but it's not the block and all the 2002 cars didn't come with Z06 blocks, at least the ones I have done cams on here anyway and there dynoing high too.
JP
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Re: Any correlation between 450rwhp and LS6 blocks?
I think the stock 01-02 heads have a little something to do with the good cam-only numbers. The block prob does help, but may show up better in something like a 382/383ci engine between the two blocks. Strokers will strain the crankcase breathing more than a stocker. Think of it like this, if there's xxx cubic inches of displacement above the pistons, then there is also the same xxx cubic inches being turbulent below the pistons also.
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Re: Any correlation between 450rwhp and LS6 blocks?
The '02's got what GM calls "massaged" heads to deal with the piston slap issue (which really didn't help anyway). That's why there's a difference in power.
Only 25% of '02's received the LS6 block.
Only 25% of '02's received the LS6 block.
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Re: Any correlation between 450rwhp and LS6 blocks?
02s got "massaged" heads? Wow, when did this info get released? Are the OEM castings changed? Do all 2003+ corvettes have these same heads? Anybody flow tested them?
#10
Re: Any correlation between 450rwhp and LS6 blocks?
i have a 01 SS M6 with the LS6 block. i havent had the chance to get it on the dyno yet, but im running a 224/224 563 112 cam . im hoping for numbers close to 400 because the car is very strong. i have read that 10% of 01's had this block and it does seem to be some better hp numbers out of them for some reason .
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Re: Any correlation between 450rwhp and LS6 blocks?
When did GM start sending out LS6 intake manifolds as a stock item?I would think the combo of LS6 block and manifold has to worth something be it stock or cam only.
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Re: Any correlation between 450rwhp and LS6 blocks?
Just to compare I have an LS6 block. Good friend of mine has a 2002 with the LS1 block. His car pulled 410rwhp cam only with headers. My car pulled 403rwhp with a similar cam and headers. I honestly don't think there is one bit of difference power wise. His M6 was running 12.4s with just headers and a lid FWIW.