Our Street Short Blocks for 4.6 engines are an economical way to add durability and horsepower to your vehicle. These short blocks include: Ford OEM Fully Machined Romeo engine blocks, Cast Steel 8 bolt crankshafts (check your flywheel for fitment), ModMax Forged 4340 H Steel connecting rods, your choice of Forged pistons and pins (see piston option dropdown), Plasma Moly rings, and High Performance King rod and main bearings. These short blocks are rated up to 600hp safely, but we have had applications making more power. In addition we can build these with a variety of piston dish volumes for the compression ratio of your choice. (Please use the compression ratio chart below to see which pistons to choose for your compression decision and then pick the proper pistons in the dropdown box).

Each shortblock is hand assembled and machined as ordered to insure quality. The blocks are precision honed for proper piston to wall clearance, checked and cleaned before assembly. The rotating assemblies are digitally internally balanced to racing specifications and then meticulously assembled into the block. Bearing clearances are checked and set for performance use and the rings are perfectly filed to fit for optimum seal.

NOTE: THESE SHORTBLOCKS ARE CUSTOM BUILT FOR YOUR APPLICATION AND TYPICALLY TAKE 6-8 WEEKS. Full NON-REFUNDABLE payment is required up front for this CUSTOM part. If you have special needs, options, or time frame you must CONTACT us BEFORE ordering. All sales on Short Blocks are FINAL.

NOTE: PLEASE SEE THE CHART BELOW FOR COMPRESSION RATIO OPTIONS SO YOU CAN CHOOSE THE CORRECT PISTONS!