1to1-850 Engine - 1:1 Tuning Spec Shortblock for FK8 / K20C - 850HP+

1to1-850 Block (Rated for 850HP+)  This is our most popular offering for the FK8/K20C1 family. These shortblocks will take 4-6 weeks to complete due to the machining processes.   These blocks have been tested to 850whp+ and are assembled, shipped, and ready to bolt a head onto them. If you are sending your engine in to be built, it MUST be in usable condition. In the event that it is not usable, we will contact you with some options to get a new block. Please only send an empty block core, no other parts If you need a box and packing materials to send your block in, please contact us after your order is placed. 1to1-850 Features the following: Your choice of a New OEM Block, or send yours in to be built New OEM Honda Crankshaft Cylinder Support system (HD Version) installed. Diamond honed to 86.5mm bore. O-ring for top of sleeve optional for best head gasket seal (Best for high boost applications). 1:1 Tuning Spec - Traum piston set. 86.5mm Bore. Upgraded, oversized wristpins. HD