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454 550HP Big Block Chevy Crate Engine 

new Engine Package Design. new

Now Being Built With A Custom Ground Roller Camshaft

 

454 Chevy

500 HP

Big block Chevy 454 with 550 Hp performance aluminum head engine combination can be custom designed to tailor to your specific needs. All engines can be custom painted to match your vehicle at your request. We can outfit 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.


Big Block Performance And Quality Parts At A Reasonable Price For A Turn-Key Engine Nothing Else To Buy!

High Horse Power Very Streetable Road King

 

*See Below The Quality Of Parts We Use In Our Engines

Short Block Assembly:
  • Gen VI 454 Chevy Block (One Rear Seal)
  • Bored and honed with deck plate
  • Mains have been Align Honed 454 Short Block
  • 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
  • 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
  • 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 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 Roller Lifter Retainer Tray
  • Edelbrock Performer RPM Rectangular Port Aluminum Performance Cylinder Heads
  • (8) Stainless Steel 2.19 Intake Valves 454 Chevy Short Block 2
  • (8) Stainless Steel 1.88 Exhaust Valves
  • (16) High Performance Valve Springs And Retainers (To Match Camshaft)
  • 7/16 Screw In Studs And Hardened Guide Plates
  • (16) Manley Push Rods
  • (16) Performance True Aluminum Roller Rocker Arms
  • Engine Will Be Assembled With All Brand New Bolts
  • High Volume Oil Pump And Screen
  • New Painted Oil Pan
  • New Dip Stick And Tube
  • GM Aluminum Timing Cover
  • Professional Products Performance Balancer
  • Fel-Pro Performance Gaskets
  • Edelbrock RPM Air-Gap Intake Manifold
  • Chrome Thermostat Housing
  • Edelbrock Carburetor w/ Electric Choke   454 Chevy Long Block
  • Chrome Air Cleaner
  • MSD Pro-Billet Distributor
  • MSD Blaster II Coil And Bracket
  • MSD 6AL Ignition Control
  • (8) AC Delco Spark Plugs
  • Custom Fit Taylor 8mm Ignition Wires (Color Of Choice Black, Red, Blue, Yellow, Green, Orange No Extra Charge) 
  • Brand New High Flow Cast Iron Water Pump
  • Chrome Valve Covers
  • Chrome Breather

  • All engines will come with 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

Only $10,100

Live Chat

We Are Constantly Running Engine Deals

Please Call Us For The Most Up To Date Pricing

Or E-Mail Us For More Information!

         

 

Customize Your Crate Engine

March Performance
Alternator
Turn-Key Drop In Rady Small Block Chevy 350 420HP With March ALT Pulley Kit		 Alternator, Power Steering
 Alternator, Power Steering,  And AC
Add $870 Add $1,430 Add $1,870
     

Holley Carburetor
Holley
Add $300		 Mini High Torque Starter

Add $185
   
MSD 6AL Ignition Control
MSD 6AL 6420
Add $225		 Manual Flywheel
Flywheel
Add $375
   




The Powerjection III is an amazing accomplishment in engineering. It is by far the simplest and cleanest aftermarket EFI system available. Which also means it is the easiest to install and tune. The “Adaptive Learning” feature eliminates the necessity for laptop programming and tuning, except on the most radical engines.


PowerJection III EFI System

Kit Includes:

  • 750 CFM Throttle Body Assembly (An exact swap for a 4150 Holley)
  • (4) 62 lb./hr. port style injectors
  • Built in EMS (Engine Management System) Mounted on the throttle body
  • Dashboard Software CD with comprehensive Instruction Manual
  • All harnesses and connectors (Much less harnessing than other systems)
  • Idle Air Control - Built in to the throttle body 
  • Coolant Temperature Sensor - 3/8-NPT threads for most manifolds
  • Throttle Position Sensor
  • Wideband O2 Sensor and cable (Many competitive units are narrowband)

Add $1,800


Multiport EFI System
 
THE WORLD'S ONLY TRUE PLUG AND PLAY FUEL INJECTION SYSTEM!
NO TUNING, NO PROGRAMMING,
NO HASSLES! UNMATCHED DRIVABILITY, INCREDIBLE FUEL ECONOMY!		 Kit Includes:
  • Four barrel single plane Mass-Flo Patented intake manifold.
  • custom 1000 CFM 4 bbl throttle body
  • Jumbo fuel rails and mounts
  • custom compact high flow patented mass air meter
  • Complete production quality wiring harness
  • Production mass air sequential electronic fuel injection computer
  • Eight high quality fuel injectors, sized to your application
  • All needed sensors
  • High performance billet aluminum distributor complete with ignition module, rotor and cap
  • High performance coil featuring faster rise time and increased spark duration for increased performance
  • Throttle body base gasket
  • Throttle cable bracket
  • Assorted hardware and fittings and detailed instructions for a simple turn key installation
Add $2,800

Custom Paint

Custom Painted Engine:

  • Have a custom painted car?  Why not have a custom painted engine?  Give us your paint code and we'll do the rest.

Add $250


Webber 48mm Stack Induction

Webber Stack Induction:

  • Webber Stack Induction Aluminum Intake Manifold
  • Webber 48mm IDA Carburetors
  • Chrome Stacks
  • Webber Carburetor Fuel Line
  • Webber Carburetor Throttle Linkage

Add $2,900

Chevy 350-475hp

Edelbrock Dual Quad's:

  • Performer RPM Dual Quad Air-Gap intake With Endurashine Finish
  • 2 Thunder Series AVS carburetors With Endurashine Finish
  • Progressive throttle linkage
  • Fuel line
  • Edelbrock Chrome Dual Carburetor Air Cleaner

Add $1,200


Chevy Black Out Kit

Old School Look:

  • One of the most popular and durable dress-up kits available today! This black crinkle kit with its distinctive look and boldly striking wording comes with everything you need for race day or show day!

Add $175

TH350 Transmission

Automatic Transmission Package's:

  • The world’s finest transmission packages, custom made for Proformance by Monster Transmission & Performance.
    -Each Transmission Package is tailored to your engine, and Test Driven to ensure maximum performance.
         -They build them from Mild to Wild, if you’ve got the horsepower, they have the transmission.

TH-350 Or TH-400 Add $1,700

700R4 Or 200R4 Add $2,450


 

 

 

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 

550HP Short Block

  

550HP Long Block

10100

Copyright © 2006 Pro-formance Unlimited Inc.

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PROFORMANCE UNLIMITED INC. RESERVES THE RIGHT TO MAKE CHANGES IN DESIGN OR TO MAKE ADDITIONS TO OR IMPROVEMENTS UPON ANY OF ITS PRODUCTS AT ANY TIME WITHOUT INCURRING ANY OBLIGATION WHATSOEVER TO INSTALL THE SAME OR IMPROVEMENT UPON PRODUCTS PREVIOUSLY MANUFACTURED. OCCASIONALLY DEPENDING ON AVAILABILITY, PARTS MAY BE SUBSTITUTED THAT WILL NOT EFFECT PRICE, PERFORMANCE, APPEARANCE OR QUALITY OF THE PRODUCT.