427 Small Block Chevy Turn-Key Crate Engine With 550 HP

Starting at $11,995

Chevy 427 small block stroker with 550HP hydraulic roller fully forged bottom end engine combination. This engine can be custom designed to tailor to your specific needs. When we designed this engine combination we had the weekend racer in mind who can drive to the strip and back home. We can also custom paint your engine to match your vehicle at your request. We are a dealer for March Performance serpentine belt systems if you choose them as your pulley manufacture. We can also assist you in choosing the proper performance street/strip transmission and stall speed converter combination for your vehicle and have it shipped directly to you as your engine is being built.

  • Fully machined Dart SHP 4 bolt main block with 4.125 bore
  • Block painted with 3 coats of high temp ceramic engine paint
  • Eagle 4340 forged steel crankshaft 4.000 stroke
  • Eagle H-Beam connecting rods with ARP bolts
  • High performance forged pistons (SRP, or Mahle)
  • Performance rods and main bearing (Clevite, King or Federal Mogul)
  • Performance rings hand filed to match application
  • Rotating assembly is balanced
  • Custom ground hydraulic roller camshaft (Designed for the specific applications intended usage)
  • Hydraulic roller lifters
  • Three piece true double roller timing set
  • Performance aluminum cylinder heads (AFR CNC ported)
  • 7/16 Screw in studs and hardened guide plates
  • Chrome moly push rods
  • Performance roller rockers (SSR Series)
  • Melling high volume oil pump and screen
  • Canton Racing oil pan and pick up
  • Chrome dipstick and tube
  • Chrome timing cover
  • SFI approved Professional Products performance balancer
  • Fel-Pro gaskets
  • Performance aluminum intake manifold (Edelbrock)
  • Chrome thermostat housing
  • Holley Ultra HP carburetor
  • Chrome air cleaner
  • MSD Pro-Billet distributor (Requires CDI Box)
  • MSD Blaster II coil and bracket
  • Autolite spark plugs
  • Custom fit Taylor 8mm ignition wires (Color Of Choice Black, Red, Blue, Yellow, Green, Orange No Extra Charge)
  • Water pump
  • Chrome valve covers
  • Chrome breather
  • 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 engine and send you a copy
  • Additional Items Included:
  • Metal Engine Stand
  • Flex Plate (Auto Trans)
  • ARP Flex Plate Bolts
  • 3 Year Unlimited Mileage Warranty


March Performance Pulleys

Pulley Systems

Alternator Only

Alternator Only

This system includes the following items:

  • Chrome 105 Amp alternator
  • Alternator pulley
  • Crankshaft pulley
  • Water pump pulley
  • Aluminum bracket with fan & nose cover
  • Belt tensioning bar
  • Serpentine belt
  • Installed on your engine

Add $1,000

Alternator & Power Steering

Alternator & Power Steering

This system includes the following items:

  • 105 Amp alternator chrome
  • Chrome power Steering Pump
  • Alternator pulley
  • Crankshaft pulley
  • Water pump pulley
  • Power steering pump pulley
  • Aluminum bracket with fan & nose cover
  • Belt tensioning bar
  • Serpentine belt
  • Installed on your engine

Add $1,675

Alternator, Power Steering &  Air Conditioning

Alternator, Power Steering & Air Conditioning

This system includes the following items:

  • Chrome 105 Amp alternator
  • Power Steering Pump
  • Chrome AC Pump
  • Alternator pulley
  • Crankshaft pulley
  • Water pump pulley
  • Power steering pump pulley
  • AC pump nose cover
  • Aluminum bracket with fan & nose cover
  • Belt tensioning bar
  • Serpentine belt
  • Installed on your engine

Add $2,100

Corvette Alt, PS, and AC

Corvette Alt, PS, and AC

This system includes the following items:

  • Chrome 105 Amp alternator
  • Power Steering Pump
  • Chrome AC Pump
  • Alternator pulley
  • Crankshaft pulley
  • Water pump pulley
  • Power steering pump pulley
  • AC pump nose cover
  • Aluminum bracket with fan & nose cover
  • Belt tensioning bar
  • Serpentine belt
  • Installed on your engine

Add $2,250


Parts

MSD Starter

MSD Starter

This system includes the following items:

  • Dyna Force Starter
  • Small Block Chevy
  • Big Block Chevy
  • High Torque
  • 153 and 168 Tooth
  • Straight Bolt Pattern

Add $300

MSD 6AL Series Ignition Box

MSD 6AL Series Ignition Box

This system includes the following items:

  • Higher output with 530 primary volts and 135mJ of spark energy
  • Efficient components use less current to produce more power
  • Set an rpm limit on the 6AL with two rotary dials in 100 RPM increments
  • Same bolt pattern as the original 6AL with a lower profile housing
  • Built-in LED for system checks
  • All wires exit the same side through a locked, sealed connector

Add $275

Flywheel - Chevy

Flywheel - Chevy

This system includes the following items:

  • 153 or 168 tooth

Add $375


Fuel Delivery Systems

 Atomic EFI by MSD

Atomic EFI by MSD

This system includes the following items:

  • 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 $2,450

FiTech Fuel Injection

FiTech Fuel Injection

This system includes the following items:

  • Die Cast Throttle body
  • Handheld Controller
  • (4) Hi-Flow 600 HP injectors
  • Built-in pressure regulator
  • 2.5 BAR Internal MAP Sensor
  • Throttle Position Sensor
  • Idle Air Control
  • Coolant Temp Sensor
  • Wide band O2 Sensor
  • O2 Bung Kit
  • -06AN Fuel Inlet Fitting
  • Gasket Kit

Add $1,200

Holley Terminator Stealth EFI

Holley Terminator Stealth EFI

This system includes the following items:

  • Carburetor looks with the drivability of EFI
  • Trouble-free performance with today’s fuels - put an end to vapor lock and fuel varnish problems!
  • Fits V8 engines from 250-600 horsepower
  • 4150 style 4BBL mounting flange - Bolts on in place of carburetor
  • Available in Polished and Hard Core Gray™ finishes
  • Fully self-tuning ECU - No laptop required
  • Includes full color, 3.5” touch screen LCD for both basic and advanced tuning options
  • Timing control option for GM Small Cap HEI and Ford TFI distributors
  • Connections for Ford, GM TH350, 700R4 and other transmission linkages
  • Optional free software upgrade for full laptop control
  • Easy plug and play harnesses with minimal connections
  • Virtually maintenance free - keeps your vehicle reliable and ready to drive
  • Master Kits include complete fuel system: fuel pump, filters, 40ft of hose (feed & return), billet regulator and all fittings including guel tank return line bulkhead fitting

Add $2,650

Holley Sniper EFI Self-Tunning Kit: Black

Holley Sniper EFI Self-Tunning Kit: Black

This system includes the following items:

  • Throttle Body Assembly (An exact swap for a 4150 Holley)
  • (4) Port style injectors
  • Throttle body mounted ECU
  • Comprehensive Instruction Manual
  • 4 Wire vehicle connection (Battery +, Battery - , Switched Ignition & RPM)
  • Integrated fuel pressure regulator
  • Coolant Temperature Sensor
  • 3/8-NPT threads for most manifolds
  • Color touchscreen for setup and gauge viewing
  • Throttle Position Sensor
  • Wideband O2 Sensor provides realtime fuel map learn
  • Fuel pump with pre and post filters

Add $1,250


Dress Up

Custom Painted Engine

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.

This system includes the following items:

  • Custom paint

Add $350

GM Performance Black Crinkle Kit

GM Performance Black Crinkle Kit

Engine Dress-Up Kit, High-Tech Collector's Series, Valve/Timing Covers, Air Cleaner, Breather, Black Crinkle

This system includes the following items:

  • Dress Up Code 758
  • Valve Covers - Tall Design
  • Wing Nuts and Valve Cover Hold-Down Clamps
  • Air Cleaner (14'' dia.) with Bow-Tie Center Nut
  • Timing Chain Cover
  • Breather Cap

Add $225

Chevy Small Block Engine Dress Up Kit Orange

Chevy Small Block Engine Dress Up Kit Orange

Dress Up Kit, Tall Valve Covers, Drop Base Air Cleaner, Accessories, Orange Powdercoated, Chevy, Small Block

This system includes the following items:

  • Dress Up Code 780
  • Tall Valve Covers
  • Valve Cover Mini Nuts and Valve Cover Hold-Down Clamps
  • 14'' Air Cleaner with Bow-Tie Center Nut
  • 14'' Air Cleaner with Bow-Tie Center Nut
  • Breather Cap

Add $245

GM Performance Chrome Dress-up Kit w/Bowtie

GM Performance Chrome Dress-up Kit w/Bowtie

Engine Dress-Up Kit, Chrome, Tall Valve Covers/Air Cleaner/Timing Cover/Breather, Chevy, Small Block

This system includes the following items:

  • Dress Up Code 900
  • Tall Valve Covers
  • Air Cleaner (14'' dia.) with Bow-Tie Center Nut
  • Timing Chain Cover
  • Breather Cap
  • Valve Cover Wing Nuts
  • Valve Cover Hold Downs

Add $225

GM Performance Die-Cast Slant Edge Chrome Valve Cover Kit

GM Performance Die-Cast Slant Edge Chrome Valve Cover Kit

Valve Covers, Cast Aluminum, Chrome, Slant-Edge, Chevrolet, Bowtie Emblem, Chevy, Small Block, Pair

This system includes the following items:

  • Dress Up Code 930
  • Chrome Chevrolet/Bow Tie Recessed Logo
  • 14'' Air Cleaner with Bow-Tie Center Nut
  • Breather Cap
  • Timing Chain Cover

Add $425


Transmission

Automatic Transmission Package TH-350 or TH-400

Automatic Transmission Package TH-350 or TH-400

This system includes the following items:

  • 3 Speed Auto Transmission
  • Shift Kit
  • Improved Valve Body
  • Adjustable Servo
  • Stall Speed Converter To Match Application

Add $1,900

Tremec TKO600 5 Speed Manual Transmission Package *

Tremec TKO600 5 Speed Manual Transmission Package *

This system includes the following items:

  • New TKO600 Ford Street and Strip, 26-spline input shaft, full factory warranty
  • Gear Ratios: 2.87, 1.89, 1.28, 1:1, .64
  • Main Case Streamlining - Modified to fit your tunnel
  • AP Revolution Shifter Mechanism - Original 4-speed shift position
  • Driveshaft Slip Yoke - Cryogenically hardened steel
  • X-Factor Cross Member - Modular T6061 Aluminum, bolt-in
  • Transmission Mount - Polyurethane
  • Pilot Bearing - Stainless rollers, grease pre-pak
  • Reverse Light Harness
  • Speedometer Conversion
  • Shifter Knob
  • Hardware
  • Instructions
  • QT SFI Bell Housing for Ford 289/302/5.0/351 C/W to TKO/T5
  • SCIENCE FRICTION Billet Steel 157t Flywheel
  • FLYWHEEL BOLT, SET OF 6, Race Grade 8
  • SBF 8mm PP Bolt Set
  • SCIENCE FRICTION STAGE2 SUPER STREET CLUTCH KIT
  • HIGH CLAMP LOAD 10.5" LOW FLEX FORMED PRESSURE PLATE
  • FULL FACE WOVEN KEVLAR SPRUNG HUB DISC
  • ALL STEEL RELEASE BEARING
  • STAINLESS PILOT BEARING
  • LIGHT PEDAL EFFORT
  • FORD HYDRAMAX Hydraulic Clutch Actuator System Kit Includes:
  • Concentric Slave Bearing - Dual line, double width seals
  • Steel Braided Lines - Teflon Lined Stainless Steel
  • 3/4" Bore Master Cylinder - Black Powder Coated
  • Hydramax Firewall Mount - Patented Adjustable Mount w/Firewall Stiffener
  • Reservoir Kit - Remote or local mount, plastic (billet upgrade available)
  • Pedal Rod and Hardware - Model Specific, Adjustable Length
  • Fittings, hardware and complete instructions.

Add $4,800-$6,500

Tremec TKO600 5 Speed Manual Transmission Package *

Tremec TKO600 5 Speed Manual Transmission Package *

This system includes the following items:

  • New TKO600 Ford Street and Strip, 26-spline input shaft, full factory warranty
  • Gear Ratios: 2.87, 1.89, 1.28, 1:1, .64
  • Main Case Streamlining - Modified to fit your tunnel
  • AP Revolution Shifter Mechanism - Original 4-speed shift position
  • Driveshaft Slip Yoke - Cryogenically hardened steel
  • X-Factor Cross Member - Modular T6061 Aluminum, bolt-in
  • Transmission Mount - Polyurethane
  • Pilot Bearing - Stainless rollers, grease pre-pak
  • Reverse Light Harness
  • Speedometer Conversion
  • Shifter Knob
  • Hardware
  • Instructions
  • QT SFI Bell Housing for Ford 289/302/5.0/351 C/W to TKO/T5
  • SCIENCE FRICTION Billet Steel 157t Flywheel
  • FLYWHEEL BOLT, SET OF 6, Race Grade 8
  • SBF 8mm PP Bolt Set
  • SCIENCE FRICTION STAGE2 SUPER STREET CLUTCH KIT
  • HIGH CLAMP LOAD 10.5" LOW FLEX FORMED PRESSURE PLATE
  • FULL FACE WOVEN KEVLAR SPRUNG HUB DISC
  • ALL STEEL RELEASE BEARING
  • STAINLESS PILOT BEARING
  • LIGHT PEDAL EFFORT
  • FORD HYDRAMAX Hydraulic Clutch Actuator System Kit Includes:
  • Concentric Slave Bearing - Dual line, double width seals
  • Steel Braided Lines - Teflon Lined Stainless Steel
  • 3/4" Bore Master Cylinder - Black Powder Coated
  • Hydramax Firewall Mount - Patented Adjustable Mount w/Firewall Stiffener
  • Reservoir Kit - Remote or local mount, plastic (billet upgrade available)
  • Pedal Rod and Hardware - Model Specific, Adjustable Length
  • Fittings, hardware and complete instructions.

Add $4,800 - $6,500


The 1960s were the heyday of the truly cool American car; a time when slabs of sheet metal, chrome and loud exhausts defined cool. Forty years later, every car and every engine from that time period has its group of devoted fans and experts! We at Proformance Unlimited are excited to present you with one of the most icon engines from that time, the Chevy 427 ci V8.
There is no doubt that our Chevy 427 ci turn-key crate engine is a favorite for the true Chevy man. Featuring an Eagle forged stroker crankshaft, SRP or Mahle forged pistons, and performance aluminum cylinder heads, this Chevy 427 ci crate engine, pumping out a whopping 550+ HP, is certain to leave most Ford owners in the dust. With it’s awesome torque and power curve all the way throughout the RPM band this crate engine will make a great power plant for your weekend driver or mild drag strip car.
Proformance Unlimited crate engines can supply you with the crate engine that you have dreamed of and others fear! With over 50 years of shop experience, you can rest assured that we are here to help design and build the engine combination that best suits your vehicles needs. Unlike our competition, we stand by our turn-key crate engines with a one year, unlimited mile warranty.

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