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 (Upgrade to a New GM 4 bolt main Block Add $400) Bored and honed with deck plate Mains have been Align Honed Block has been decked 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  Clevite P Series Rod And Main Bearing Perfect Circle 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 A set of Roller lifters A set of  Lifter Guides A GM Roller Lifter Retainer Tray Performance Aluminum cylinder heads 60cc with 185cc intake runners Stainless Steel 2.02 Intake Valves Stainless Steel 1.60 Exhaust Valves High Performance Valve Springs And Retainers (To Match Camshaft) 7/16 Screw In Studs And Hardened Guide Plates Manley 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  Carburetor w/ Electric Choke  14" Chrome Air Cleaner MSD Distributor (Requires MSD 6AL Ignition Control) 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 Flex plate (for auto trans) 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 2 year unlimited mileage warranty $6,450 We Are Constantly Running Engine Deals Please Call Us For The Most Up To Date Pricing Or E-Mail Us For More Information!

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 Credit cards accepted Call us today for a quote 1-732-462-7283

400HP Short Block		400HP Complete