Originally Posted by JsTA (Post 588491)

I wonder if these are from ATK? Summit sells a 6.0 LQ4/9 block that is .030" over and supposedly finish machined that they get straight from ATK. Those blocks are seasong (used) blocks that have been cleaned and bored.

Here is the listing for the 6.0 block:

http://www.summitracing.com/parts/SUM-150105/

Here is a thread on ls1tech detailing the 6.0 block:

http://ls1tech.com/forums/generation...-ls-block.html

There were som naysayers in that thread but overall it seemed like most were pleased.

Originally Posted by Musclerodz (Post 588558)

Look at the estimated ship date.....

Originally Posted by travmon (Post 588540)

Should I buy them all so they can be auctioned off in 50 years by my children for big money !! you know for the guy that is restoring his silverado and needs a numbers matching block, lol .