





Aluminum LSX Block Poll
Not to thread hijack, but...
can anyone comment on the quality of machining on stock/new LS7 blocks?
How are the tolerences? Align bore and clean hone needed? Any different from the standard machine work done on an LS1/2/3/6?
Like the LSX block you cannot offer options to suit everyone. I feel though that the engineers need to build the capability into to blocks. A little extra time and effort will enable the blocks to modified/built to fit many applications.
More as it develops.
I want the LSX heads and Tall Deck LSX Block to be released first!
Robin

I never knew GMPP would fall for the overseas production just to make more money....
Greed is a bitch.
The Best V8 Stories One Small Block at Time
One world?!
I guess you're voting for Obama too huh?
Chevy high performance blocks made in India.... I don't know about you, but my father/grand father would have laughed at the idea....
What we do is a hobby. It doesn't pay the light bill.... so do we REALLY need to save a few dollars and compromise the soul of Chevrolet?
Most of the problems that we have seen have been from inexperience when building a high horsepower small blocks.
Read some of the posts on that tread. You have Joe from Six Speeds Inc as well as Erik K adding his opinions.
As far as the cracking I need to see pictures if you have them. I am not calling BS but I need proof. I agree in my opinion I would like to see a closed deck on any block that use in a high horsepower application. To justify these type of changes I need DATA. Not rumor or hearsay. Give me DATA. Pictures and all the details.
I'll post a link to that thread in a few minutes so I don't lose this post

Here is the post https://ls1tech.com/forums/generation-iv-internal-engine/984913-who-makes-strongest-lsx-crank.html
Thanks
Robin
Robin,do you really believe this statement?
C'mon Shawn, why don't you tell us what your thinking, I (and probably everone else) would like to know.
Robin
Like the LSX block you cannot offer options to suit everyone. I feel though that the engineers need to build the capability into to blocks. A little extra time and effort will enable the blocks to modified/built to fit many applications.
More as it develops.
I want the LSX heads and Tall Deck LSX Block to be released first!
Robin
Robin
Last edited by JPH; Sep 23, 2008 at 10:23 PM.
Robin,i agree that parts need to be modified based on hp your looking to build.But to say that the LSX block is so sturdy in the bottom end that it doesnt flex and that its a crankshaft problem is just pure b.s.I have been in this game long enough to tell the difference between crankshaft flex and block flex.It reminds me of the old days of building high hp 400 sbc using stock blocks-lots of block flex.It's amazing that i can build a 2500 hp sbc using a Brodix aluminum block,off the shelf Lunati pro series crank and off the shelf Lunati billet rods-put over 200 passes on it with no bearing problems but i cant get 20 passes on an LSX block making 1800hp using the same components-can you explain why i need a center counterweight billet crank,aluminum rods and a bunch of custom stuff to do the same with the LSX block?
Is there anyway you could use a beefy iron liner (something like a Darton MID) so we could have the option of 4.200" (This is something that can't be done on the Warhawk as far as I know)
P.S. Does GMPP ever plan on releasing a CNC machine lightened IRON LSX block?

