How much would I gain from putting L92 Heads on my 05 Vette.

I have a 232,232 cam in my car with .567 lift. Its currently making 420 to the wheels.


I am looking to buy from sdpc tomorrow if the numbers are worth it.

Please let me know.


Tim

 

Are you going to buy ported heads, or just as cast? You will need to mill them to retain the stock SCR.

 

Was going to just slap them on

 

I am sure they could mill them at no extra charge but are you gonna get them out of the box or ported?

 

Was going to get them out of the box. they are cnc machined and flow over 320 stock

 

You'll need to get the L76 intake for these as well. If you have a LS2 intake it will not work with these heads.

Also, will the L92 valves work with the LS2 pistons? I thought I remember from a while back hearing they were different, but could be wrong.

 

I think there is a specific piston for the L92 head, as well as the LS7 head. The valves are huge.

 

pistons work fine. heads will need to be milled to retain stock compression ratio and use stock head gasket. offset rocker stands will also be needed. On my 405rwhp 06 vette(cam and headers) the L92 unported heads and L76 unported intake( with a much more milder cam than previous set up) produced 450rwhp and 405ftlbs on a 91degree day on the dyno. BTW, you can't just "slap them on".....

 

https://ls1tech.com/forums/showthrea...5&highlight=c6


Here's what mine did by installing the PRC CNC Ported L92 heads on a ls2 car. This car had stock cam We've seen 20hp gains cnc porting the l92 heads over the stock gm l92 heads.