suggestions for 4.070 -416ci piston
 

Need 9-1 compression
4.070
4.000 stroke

I see alot of high compression setups.

Hell 9.5 -1 will work also

I am going to assume you have FI on the car with the low compression. The piston you are looking for from Wiseco would be part# k456x7 its a 4.070 bore with a 4.000 stroke. It will put you between 9.7-9.3 compression depending on combustion chamber cc and head gasket thickness. It has a 1.110 compression height. The piston has a -15 cc dish and can be used with with the large valves of an L92/LS3 head if you choose to do so.

i see the piston your talking about. if i went with 10 to 1 compression, how much boost you think i can throw at this thing..

at the end of the day i would like to be at 1000rwhp

10:1 will be fine. With the efficiency of LS motors you don't need to run the low compression like an old SBC. There are plenty of guys in the FI section running close to or a little above 10:1 compression.

You will lift the heads or a head gasket will let go before you hurt that piston. It will make 1000rwhp on easy boost since you have the cubes.