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* Engine Shown With Optional Pulley Kit*

 

350 Chevy Crate Engine With 420 HP

 

Chevy 350 with 420 HP engine can be custom designed to tailor to your specific needs. Engine feature  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.

The top questions to keep in mind when purchasing your crate engine click here

 

"Incredible Power Throughout The Power Band"

Most Popular Engine

 

 

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

 

Short Block Assembly:
  • Fully machined seasoned factory roller 4 bolt main block
  • 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)350 Chevy Short Block\
  • Eagle cast steel crankshaft 3.500 stroke
  • Eagle I-Beam connecting rods with ARP bolts and bushed pins
  • High performance pistons (Speed-Pro, Keith Black, SRP, or Mahle)
  • Clevite P Series rod and main bearing
  • Performance rings hand filed to match application
  • ARP main bolts
  • The complete rotating assembly is balanced
Fully Dressed Crate Engine Assembly:
  • All The Above Plus The Following:
  • Three piece double roller timing set
  • Comp Cams custom ground hydraulic roller camshaft
  • Hydraulic roller lifters
  • Edelbrock performance aluminum cylinder heads with 2.02/1.6 valves
  • Screw in studs and hardened guide plates
  • Manley chrome moly push rods
  • Performance roller rockers
  • Melling high volume oil pump and screen
  • Chrome oil pan
  • Chrome dipstick and tube
  • Chrome timing cover
  • Fel-Pro gaskets
  • Performance balancer
  • Edelbrock aluminum performance intake manifold
  • Chrome thermostat housing
  • Edelbrock carburetor w/ electric choke
  • Chrome air cleaner
  • MSD Pro Billet distributor (Requires MSD 6AL Ignition Control)
  • Autolite spark plugs
  • Taylor 8mm ignition wires (color of choice Black, Red, Blue, Yellow, Green, Orange no extra charge)
  • Water pump
  • Chrome valve covers
  • Chrome breathers
  • Flex plate (for auto trans)
  • Joe Gibbs HR-1 hot rod oil
  • Engines are photo documented during the building process
  • Each engine is dyno 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 $6,950

 

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

Holley Carburetor
(Includes braided fuel line for carburetor)
Holley
Add $350
MSD Mini High Torque Starter

Add $245
   
MSD 6AL Ignition Control
MSD 6AL 6420
Add $300
Manual Flywheel
Flywheel
Add $375
   



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 $225


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

425HP Short Block

 

425HP Long Block

 

6950   Updated 5/1/2012

Copyright © 2011 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.