1,600 pounds and LS power!! Brunton M-spec

[andrewb70]

Andrew, glad you saw it. I was about to send you a PM. I did not get an official answer on the base circle, but made the same conclusion based on same rockers and push rods. One odd thing though is the LS9 listed only one part number for rocker arms, while the L92 has two (you can see they are different - one matches the LS9). Not sure what is up with that, or if it was a database error...

Knowing the LS9 uses the same push rods, do you think I should trust them, or still get hardened push rods? I know there is room for improvement, but they would kind of be a cheap "fusible link" if something went wrong.

Did you run the stock timing chain set up? I have read some debate on which of the two factory types is better on Tech (tensioner vs dampener). The LS9 and L92 use the same style, but different from the LS2,3 etc.

Both the L92 and LS9 should list two different part numbers for the rocker arms, since the intake and the exhaust rockers are different. If the L92 and the LS9 pushrods are the same, I would just run them.



I know I kept the chain, and I think I installed the LS2/3 style dampeners. They were included in the "kit" that I got which had the proper cam gear.

Andrew