Just placed an order for a new C6 with an LS2, so I'm trying to figure out which LS1/LS6 parts I have that will work with the new car, and which ones should go. Will an MTI (ASP) underdrive pulley work on an LS2, or is it different?

Sorry, I can't tell you, but congrats on the purchase. Tell us more like color, tranny, options etc. Sorry, I know it's off-topic.

Yes.

Perry

Great news, thanks!

Thanks!

It's a Lemans Blue Metallic/Black coupe. 6-speed with the Z51 performance package, 1SB package (memory/power stuff/heads up display/side airbags, etc.) I'm getting museum delivery, and driving it back to NJ from Bowling Green with my wife. This is going to be a looooonnnngggg 2 month wait!

hope u kept them 205's would be a great addition to the vette

Yep, they're already off the car and on the shelf.

Sounds great!

Pretty much everything fits. I have a C5 block, clutch, FAST manifold, Messiere water pump, underdrive pulley, Kooks headers all from a C5 on my C6.

Thanks for the info guys.

Looks like I spoke too soon about keeping my AFR heads. They're milled to 62cc's, and that may not work too well with the bigger LS2 bore. Compression will probably work out to at least 11.4:1.

They will be perfect with the dished pistons SD uses. You need 76 cc total for a mid to hi 10s to 1. You have 62 cc in the head and you need about 13 cc more in the dish, which is what Kris specs.

I went the other way, but since have discovered lots of engine builders prefer the quench in the cylinder bore rather than in the head.

Perry

Thanks Perry, but my LS2 isn't coming from SD. It will have flat tops. I just ordered a new C6 Vette with one.

I'm sure you can find someone who would like your AFR heads

Prolly won't lose but a couple hundred bucks....which isn't much in the scheme of things for you it sounds like.

congrats on the purchase, i'd love a new vette. those things are freakin sweet.

dgtrtr

Someone gave you bad info unless you're planning on 12lbs of boost.

76 cc's on the LS2 is mid 9's on compression. The stock LS2/LS6 head is 64.5cc at 10.9 and 62 cc's will give you 11.21 which will work even with the stock cam (I have a C6 and have thinner gaskets: cr is 11.35 with the stock cam and 1.8 rockers) It has a dynamic CR in the high sevens from the 81 degree intake valve closing point at .004 ABDC. Your AFR's are fine. Just about any big cam you go to will work fine on 11.2 static CR.

For the doubters: http://www.kb-silvolite.com/calc.php?action=comp

Quench is the distance between the flat part of the cylinder head and the top of the piston. It is controlled with the head gasket thickness.

Good luck with the new car. Mine surprises me every time I get in it; just needs 200hp more.