• A precision machined 351w series block (painted color of choice)

• A cast iron precision ground micro polished crankshaft

• A set of tri metal Clevite 77 rod and main bearings

• A set of Eagle I-beam connecting rods with ARP hardened rod bolts

• A set of Speed-Pro performance heavy duty flat top pistons w/ coated skirts

• Assembled with hand filled performance rings to match

• A Cloyes three piece true double roller timing set

• A hand selected performance camshaft to achieve the idle & throttle response to customers desire.

• (16) high rev lifters (anti-pump up)

• Dart Aluminum Performance Cylinder Heads, With 62cc Combustion Chambers And 195CC 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

• All New ARP Head Bolts

• A set of chrome moly push rods

• (16) 1.6 ratio true aluminum roller rockers

• Melling high volume oil pump

• Melling oil pick up

• New chrome oil pan, and dip stick (additional $150 for double sump oil pans, rear Sump pan with Lokar breaded dipstick tube $200) 

• New timing cover with scale

• Engine will be assembled with all new bolts

• Mass-Flow Fuel Injection System
  • Edelbrock Performer RPM Intake Manifold
  • 4 Valve 1000cfm Throttle Body
  • 8 27lb Fuel Injectors
  • Fuel Rails
  • Mass Air Flow Sensor
  • Pre-Tuned ECM
  • Wiring Harness
  • All Sensors Required To Make System Work
  • Malory Distributor
  • Malory High Voltage EFI Ready Coil Pack

• A set of custom fit Taylor 8mm ignition wires (color of choice black, red, blue, yellow, green, orange no extra charge)

• 14" chrome air cleaner

• A set of Autolite spark plugs

• New fuel pump w/inline filter

• A brand new hi-flow water pump

• A new set of chrome valve covers

• Professional Products performance balancer

• Fel-Pro performance gaskets

• All Engines Will Come With Flex Plate (For Auto Trans) Additional $200 For Manual Transmissions.
• As We Assemble Your Engine We Take Several Pictures Throughout The Building Process. And Then We Send Them To You Via E-Mail, So You Can See The Quality Of Parts And Workmanship That Goes Into Your Engine.
• Each engine is live run tested, timing set, and Fuel Injection System adjusted And Tuned for optimum performance
• We video tape your live run engine, and send you a copy

All of our turn-key crate 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

420HP Short Block

420HP Long Block