chevyss2008

I have a 2000 WS6 with the LS1...It currently has a mild cam, long tubes, ORY, egr delete etc and a 3k stall...Im at 141k on the odo and my oil psi is becoming an issue...its down to 10-12 at a stop, and 35 on the road...Im weighing my options on rebuilding or replacing. No matter which route I take, I do plan on installing a nice set of heads and better intake. I can get a LS1 short block pretty cheap or jump up to a 2 or 3 sb...My goal is to be mid 11`s....Would there be that much performance gain going from a 6.0 to a 6.2? Im sure going to either of those would be a decent jump from the 5.7...If I stayed with the LS1, I think it would be more cost effective to get a short block than having my block rebuilt with a rotating assembly...The heads I have sort of looked at are the PRC 2.5 for all the options...Just wanted to get some direction on which would be the best route to go, to get me to my mid 11 goal and still have a reliable car to drive on trips etc...

NAVYBLUE210

My .02 always go with the Largest Bore combined with the best
Cylinder heads that one can afford. That said I would rather
have a 6.0 block with a set of MMS 235s than a 6.2 with some
so-so or even "good" heads. The better heads MMS 235s in this
example will make more HP with better throttle response and
have better drivability with a smaller cam. More ideal for a
daily driver and reliability.

140K_GXP

I would go with the LS3. It is a 6.2L and has the much better flowing heads and intake.

chevyss2008

As stated above, the heads will more than likely be PRC 2.5 heads using a LS6 or Fast 92 intake...I would much rather have a 3, but just to throw the extra $ at one just to be able to say I have a 6.2 isn't something I want to do if the 6.0 is comparable with the same set up on heads and intake..

chevyss2008

Have decided to go ahead with the LS3 from Thompson Motorsports....They had the best price on them...My son wants to buy my LS1 for a project engine for something he is going to build...So it all worked out pretty good..