383 with 400 HP stroker engine has a 3.750 stroke which delivers an extremely high amounts of torque, you have to experience one to know how it feels. Engine can be custom painted to match your vehicle at your request. We can also equip your engine with the exclusive March Performance serpentine belt system.  We can also assist you in choosing the proper transmission and stall speed converter combination for your vehicle and have it shipped directly to you as your performance crate engine is being built.

 

 

See Below The Quality Of Parts We Use In Our Engines

Short Block Assembly: Seasoned 4 bolt main block 1 pc rear main seal Bored and honed .030 with deck plate Mains have been Align Honed Block as been decked .020 Dura Bond bearing installed Brass freeze plug and oil galley kit installed Block painted with 3 coats of high temp ceramic engine paint customers choice of color New Eagle Cast Steel Crank Shaft 3.750 Stroke New Eagle I-Beam Connecting Rods With ARP Bolts And Bushed Pins Speed-Pro or Keith Black Hypereutectic Coated Skit Pistons (10.0:1 Compression When Used With 70cc Head) Clevite P Series Rod And Main Bearing Hastings Cast Rings Hand Filed To Match Application The complete rotating assembly will be balanced   Fully Dressed Crate Engine Assembly: All the above plus the following: Three piece true double roller timing set Custom Ground Hydraulic Roller High Performance Street Camshaft With A Muscle Car Chop (16) Roller lifters (8) Lifter Guides A GM Roller Lifter Retainer Tray Performance Aluminum cylinder heads 64cc with 200cc intake runners (8) Stainless Steel 2.02 Intake Valves (8) Stainless Steel 1.60 Exhaust Valves (16) High Performance Valve Springs And Retainers (To Match Camshaft) 7/16 Screw In Studs And Hardened Guide Plates (16) Chrome Moly Push Rods (16) Performance Stainless Steel roller rockers Engine Will Be Assembled With All Brand New Bolts High Volume Oil Pump And Screen Chrome Oil Pan Chrome Dip Stick And Tube Chrome Timing Cover Fel-Pro Performance Gaskets Professional Products performance balancer Performance Aluminum Intake Manifold Chrome Thermostat Housing Edelbrock 650 CFM Carburetor W/ Electric Choke  14" Chrome Air Cleaner MSD Distributor MSD Blaster II Coil And Bracket (8) AC Delco Spark Plugs Custom Fit Taylor 8mm Ignition Wires (Color Of Choice Black, Red, Blue, Yellow, Green, Orange No Extra Charge) High Flow Cast Iron Water Pump Chrome Valve Covers Chrome Breather Complete PCV Ventilation System Flex plate (for auto trans), additional $375 for manual transmissions Engines are photo documented during the building process so you can see the quality of parts and workmanship that goes into your engine Each engine is live run tested, timing set and carburetor adjusted for optimum performance We video tape your live run engine and send you a copy All of our turnkey engines come with a 1 year warranty with unlimited mileage  For Pricing Please Click Request Info Link Below

Whether your vehicle is a hot rod, street car, race car, or even a tow truck, here at Pro-formance Unlimited we are here to help design and build the combination that best suits your vehicles needs. Please browse our engine combinations listed below or custom design one of your own. Pro-formance Unlimited is best known for our precision custom designs. From that special built stroker engine to that turn-key drop in ready crate engines, call Doug or Steve we will be happy to answer any of your questions. All engines are custom built to order for total customer satisfaction All major credit cards accepted Call us today for a quote 1-732-462-7283

400HP Short Block		400HP Complete