These blocks are custom built with 8.8:1 industry leading CP pistons. With the stock V6 bottom end you can make roughly in the neighborhood of 300whp before the ring lands start breaking apart under the heat and stress of forced induction. Maybe with a few tricks you can squeeze out a bit more (meth injection etc). If you keep your stock head configuration, with this block you can effectively max out the capability of the heads before the bottom end. Other companies have managed to get over 400whp with stock heads by building up the bottom ends. We expect that these bottom ends (if the stock rods are used) to go up to about 450whp~500whp safely. If you have requirements that go over that then we have an option to add Crower rods to the engine for an unknown capability. (We would expect that you could push 800whp no problems with a fully built bottom end). Includes: CP racing pistons (8.8:1/.040" over) Piston rings Clevite bearings Fully balanced Overbored 1mm/.040 over Professional assembled Magnafluxed Cleaned & Decked Equalized Verified mains Verified clearances New Freeze Plugs New Galley Plugs Options: ARP main studs ARP head studs Crower billet rods OEM Oil Pump OEM Water Pump OEM Overhaul Gasket Set (all gaskets required for the engine build) OEM Gasket Set for the heads (head gasket, cam seals, valve guides etc) Core Exchange: $500.00 core exchange charge is added to the price of the of the short block. Once we receive a working lower end you will refunded the core charge.