Weber Racing Equipment prides itself it top of the line performance engines with unparalleled value for a reasonable price. All of our builds start with a brand new, out of the crate GM Performance Parts engine block. Every block is thoroughly inspected and CNC blueprinted to ensure flawless performance. With over 35 years of experience you can be sure that you are receiving an engine from one of the nations premier engine builders.

Weber Racing Equipment 383CI LS6 aluminum short blocks include:

• NEW GM Performance 5.7L LS6 Aluminum Block
• The block and main caps are fully hand finished. Weber Racing Equipment lets no little detail overlooked making sure any flaw that may have made it out of GM's factory does not make it to you.
• K1 Technology 4340 forged 4" stroker crankshaft
• K1 Technologies crankshafts are made from 4340 steel, core hardened, nitrided, mag-particle inspected and feature straight oil holes for the best oiling to the rod journals.
• Crankshafts from other leading manufactures such as Compstar/Callies and Lunati also available
• K1 Technology/ Carrillo Billet Steel H-Beam 6.125 Connecting Rods
• This is a choice far superior to most other company's entry level rods. We have used these rods in engines making over 1000 RWHP turning over 7,000 RPM!!!
• Connecting rods from Compstar, Scat, Eagle and Custom Carrillo Rods are available.
• Speed Pro Performance Rod and Main Bearings
• For those pushing your engines to the edge, we do offer upgrades to Calico coated ACL main and rod bearings.
• Dura Bond Cam Bearings
• Factory cam bearings are removed as soon as we receive the new block. The bearings are then replaced upon assembly. This assures that all oil galleys are properly flushed when we jet wash the block after machining process are complete.
• Dura Bond Cam Bearings are 1 piece heavy duty bearings. This eliminates any chance of bearing surface interruptions.
• Fatigue life of the bearing is nearly doubled with micro-babbit, chill cast, and burnished construction.
• Wiseco Forged Pistons w/ Moly Ring Set
• Choice of -2.2cc flat top ,-11cc and -25cc dished pistons
• Custom pistons available for an additional charge
• Rings are file fit per application and intended use.
• Wiseco is a long time leader in the piston industry. With some of the markets leading engineers designing each piece, these Wiseco pistons are sure to outlast any part of the engine!
• Fully precision balanced rotating assembly
• All balancing completed in house. We balance your assembly according to actual weights of the actual parts being used in your engine. We do not use any generic weights or measures.
• Main bores align honed
•  This process should be done to ANY performance engine. This ensures proper main bore sizes. This is a part of our blueprinting procedure.
• This is espicially important if you plan to use main studs.
• Main caps are also detailed and finished by hand.
• Each main cap is stamped per its work order for quality control.
• CNC Bore and Hone w/ Torque Plate
• We use our RMC CNC machine to achieve precision bore size. The torque plate mimics distortion caused from head fastener torque. This ensures a perfectly round cylinder.
• The bores are then plateau honed for the best possible ring surface.
• CNC Square Deck Block
• Even though these are new engine blocks, we ensure a perfectly flat head mating surface. We have had new blocks with as much as a .018 difference on the head mating surface!!!! This is vital to preventing head gasket failure. We do offer block and head o-ring services for forced induction and high cylinder pressure applications.
• Once desired deck height is accomplished each block is stamped with the deck height.
•  CNC Block Clearancing
• All blocks CNC machined for proper clearance for aftermarket rod and stroke applications.
• This is programmed in our CNC to ensure a precision and proper clearance everytime.
• Block clearance in the CNC also eliminates the chance of metal shavings that can get in the engine if clearanced by hand.
• Any chips that are created are washed out in the jet washing process after all machining is complete. 
• Engine jet washed and flushed before assembly
• After the machining process is complete, all engines are jet washed. This ensures that all debris from the machining process is out of the engine.
• We make sure every engine is 100% free of any dirt or debris prior to engine assembly.
• Meticulously assembled in our dedicated, clean engine assembly room
• You can rest assured that your engine assembly will be fully blueprinted and documented, in a clean environment, with over 3 decades of racing engine experience and expertise!!
• All coolant and oil galley plugs installed on your new engine
• We make sure to go the extra mile and make sure that all of your coolant and oil galley plugs are installed before your engine ships. We also provide new head and block dowels to ease your engine build. This eliminates the chance of missing a freeze plug or oil galley plug which could result in catastrophic engine failure.