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427 Chevy Big Block Crate Engine With 450 HP
 

 



Crate Engine Assembly:
  • A seasoned Gen VI 4 bolt main Chevy block (one piece rear seal)
  • 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 (have your engine custom painted to match your vehicle for an additional $300) 
  • Eagle 4340 Forged Steel 427 Crank Shaft
  • Eagle I-Beam connecting rods with ARP bolts
  • SRP or Mahle forged performance pistons
  • Clevite H Series rod and main bearing
  • Performance rings hand filed to match application
  • ARP main bolts
  • The complete rotating assembly will be balanced
  • Three piece true roller timing set
  • Comp Cams custom ground high performance street camshaft with a muscle car chop
  • Roller lifters
  • Lifter guides
  • Retainer tray
  • Edelbrock Performer RPM aluminum performance cylinder heads
  • Performance valve springs and retainers (to match camshaft)
  • 7/16 Screw in studs and hardened guide plates
  • Manley push rods
  • Performance roller rockers
  • Engine will be assembled with all brand new bolts
  • High volume oil pump and screen
  • Painted oil pan
  • Dip stick and tube
  • GM aluminum timing cover
  • New Fel-Pro performance gaskets
  • New Edelbrock aluminum performance intake manifold
  • Engines are photo documented during the building process so you can see the quality of parts and workmanship that goes into your engine

 

Call For Pricing

      

 

Customize Your Crate Engine

March Performance
Alternator
Alternator, Power Steering
Alternator, Power Steering,  And AC
Upgrade $1,000 Upgrade $1,675 Upgrade $2,100
     

Holley Carburetor
Holley
Add $550
MSD Mini High Torque Starter

Add $245
   
MSD 6AL Ignition Control
MSD 6AL 6420
Add $300
Manual Flywheel
Flywheel
Add $475
   
MSD Pro-Billet Distributor
And Blaster II Coil
MSD Distributor
Add $300
Taylor 8mm Ignition Wires
Taylor
Add $85
   
Joe Gibbs 15w-50 Oil
1 Case
Oil
Add $96.00
 




The Atomic EFI outshines the competition in ease of installation and performance! The MSD annular ring injection design produces an air/fuel charge with much better mixture as well as an even distribution among the cylinders that our competition cannot match. Better AFRs equal better idle quality, better starting, and better overall drivability throughout the rpm range. You and your engine will be glad when you Go Atomic.


 Kit Includes:

  • Throttle Body Assembly (An exact swap for a 4150 Holley)
  • (4) port style injectors
  • EMS (Engine Management System)
  • 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 $2,700

   


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 $300



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 $ Call


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 $1,300



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 $245


TH350 Transmission

Automatic Transmission Package's:

  • The world’s finest transmission packages, custom made for Proformance Unlimited.
    -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 $1,800

700R4 Or 200R4 Add $2,650



Whether your vehicle is a hot rod, street car, race car, or even a tow truck, here at Proformance 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. Proformance 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 and 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 

 

 

 

 

 

10700   Updated 10/9/2012

Copyright © 2012 Proformance 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.