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347 Ford Stroker Full Roller Crate Engine With 400 HP
Street Rod 
347 Ford Stroker 
*  Engine Shown With Optional Serpentine Kit And Polished Components. *  

"Stroke it once and you're hooked"


This is definitely the way to go when you are building a 302 based engine "Stroke it once and you're hooked." The 347 with 400 HP engine has a 3.400 stroke where a 302 Ford has a 3.000 stroke which delivers an extremely high amounts of torque, you have to experience one to know how it feels.  This engine package is what most of our customers prefer when building their hot rod. All our engines can be custom painted to match your vehicle at your request. We can also assist you in choosing the proper transmission and stall speed converter combination for your vehicle.


Engine Specification Sheet

Short Block Assembly:
  • Fully machined seasoned 302 Ford roller block
  • Block painted with 3 coats of high temp ceramic engine paint customer’s choice of color  347 Ford Stroker Short Block
  • Eagle steel crankshaft 3.400 stroke
  • Eagle I-Beam connecting rods with ARP bolts and bushed pins
  • High performance pistons (Speed-Pro, Keith Black, SRP, or Mahle)
  • Performance rod and main bearing (Clevite, King or Federal Mogul)
  • Performance rings hand filed to match application
  • ARP main bolts
  • The complete rotating assembly is balanced
Fully Dressed Turn-Key Crate Engine Assembly:
  • All of the above plus the following:
  • Three piece double roller timing set

  • Comp Cams custom ground hydraulic roller camshaft

  • Hydraulic roller lifters

  • Performance aluminum cylinder heads

  • Screw in studs and hardened guide plates

  • Manley chrome moly push rods

  • Performance roller rockers

  • Melling oil pump and screen

  • Chrome front sump oil pan

  • Chrome dipstick and tube

  • Aluminum timing cover with scale

  • Fel-Pro gaskets

  • Performance aluminum intake manifold

  • Chrome thermostat housing to match application

  • Edelbrock carburetor w/electric choke

  • Chrome air cleaner

  • Pro-Billet distributor (Requires MSD 6AL ignition control)302 Stroker Crate Engine

  • MSD Blaster II coil

  • MSD coil bracket

  • Auto-Lite spark plugs

  • Taylor 8mm ignition wires (color of choice Black, Red, Blue, Yellow, Green, Orange no extra charge)

  • Water pump

  • Chrome valve covers with baffles

  • Performance balancer

  • 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



We Are Constantly Running Engine Deals
Please Call Us For The Most Up To Date Pricing
Or E-Mail Us For More Information!


Request Info

**Customer Review of our Ford 347**
Hi Steve & the rest of the team, has finally come together.

The 347 stroker is in my 65 Mustang. WOW... what an AMAZING engine!!! Truly you guys are awesome. I was expecting that this was going to be a pretty strong motor but nothing like the package that has come together. Incredible that it came off the dyno EXACTLY as you predicted! You said it would have 425hp and on the dyno, after a few teaks (very little!!) it ran 425hp and put 316hp to the rear wheels. The dyno is one thing, driving it is another! This is a very quick engine! VERY QUICK. What an absolute weapon to drive. Very smooth, very snappy, very quick and very strong.

We had quite a few mods to get everything to work well together, thought you might be interested in our setup. I will forward some video and some pics in the next week. When I get a chance and if you are interested I will send through the specs on the bits we added. Basically we ran new bigger fuel line with electronic high volume fuel pump. I had a hand made 3 inch exhaust to the diff & down to 2.5 inch to pass the fuel tank. WOW it sounds unbelievable. As per the plan I have kept the rest of the car as an original 65. I changed the rims to accommodate bigger tires but kept the hub caps. So from the outside it looks like the classic 65 coupe. turn the key!

At the traffic lights the whole car shudders from the amount of power and torque running through my old cars veins. Put your foot down and front lifts like a plane taking off. As you can tell I am very excited about the engine you built and I hope that you never tire of hearing from unbelievably happy customers!! I look forward to emailing some great pics and some great video footage that you are more than welcome to use as a testimonial.

Marc N                                                                                       Click here for more Proformance Unlimited crate engine reviews

Customize Your Crate Engine

March Performance
Alt Only
Upgrade $1,000 Upgrade $1,675 Upgrade $2,100

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

Add $275
MSD 6AL Ignition Control
MSD 6AL 6420
Add $300
Manual Flywheel
Add $375

  Ford Racing Double Sump Oil Pan

Add $150

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

  ***Firmware updates can be found at the following link:

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

Inglese Carbureted Stack Induction:

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

Add $4,500


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 $1,400

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.

C4 Or C6 Add $2,000


Cobra Valve Cover 

Cobra Valve Cover And Air Cleaner Upgrade Kit:

  • Cobra Valve Covers
  • Cobra Air Cleaner

Add $275 

Cobra Engine Package 

Cobra Engine Package Upgrade Kit:

  • Cobra Valve Covers
  • Cobra Air Cleaner
  • March Alternator Only Pulley Kit:
    • Polished Aluminum Alternator Bracket
    • Polished Aluminum Alt, Crank, & Water Pump 6 Grove Serpentine Pulleys 1 Wire
    • Alternator
  • Serpentine Belt
  • Manual Transmission Flywheel 157 or 164 Tooth

Add $1,625 

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


6900     Updated 11/3/2014

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