Chevy 350 with 420 HP engine package can be custom designed to tailor to your specific needs. 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 Art Carr performance transmission and stall speed converter combination for your vehicle and have it shipped directly to you as your engine is being built.

• 4 Bolt Main Block (One Or Two Piece Rear Seal Your Choice)
• Cast Steel Scat Crankshaft Assembled W/Tri Metal Clevite 77 Rod And Main Bearings
• Scat I-Beam Connecting Rods W/ARP Rod Bolts (Good For Over 500HP)
• Speed-Pro High Performance Pistons W/ Moly-Grapghite Coated Skirts
• Hand Filed Performance Rings
• Three Piece True Double Roller Timing Set
• Hand Selected Performance Camshaft To Achieve The Idle & Throttle Response To Customers Desire
• 16 New High Rev Lifters (Anti-Pump up)
• Edelbrock Polished Aluminum Performer RPM Cylinder Heads With 170cc Runners 2.02/1.60 Valves
• (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) PBM Performance True Aluminum Roller Rockers
• Engine Will Be Assembled With All New Bolts
• High Volume Oil Pump And Screen
• Polished Aluminum Ribbed 6 Qt. Oil Pan
• Chrome Dip Stick And Tube
• Polished Aluminum Timing Cover
• Professional Products Performance Balancer
• Fel-Pro Performance Gaskets
• The Complete Rotating Assembly Will Be Balanced
• Edelbrock Polished Aluminum Air Gap Intake Manifold
• Chrome Thermostat Housing
• Edelbrock Performer  Carburetor 600CFM
• March Performance Polished Aluminum Air Cleaner
• MSD Pro-Billet Ready To Run Distributor With Blaster II Coil 
• 8 AC Delco Spark Plugs
• Custom Fit Taylor 8mm Ignition Wires (Color Of Choice Black, Red, Blue, Yellow, Green, Orange No Extra Charge) 
• Fuel Pump
• Fuel Line And Inline Filter
• High Flow Cast Iron Water Pump
• Polished Aluminum Valve Covers
• Chrome Breather
• Complete PCV Ventilation System
• Mini High Torque Starter And 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 engines come with a 1 year warranty with unlimited mileage

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

1-800-267-3940

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