Choate 6.7L 2011-Present Powerstroke Long Block Daily Driver Ford Diesel Crate Engine

6.7L Long Block Driver – Powerstroke Ford Diesel Engine Includes:

2011-2012 6.7 Powerstrokes Come stock from Ford with a 8-bolt flexplate and torque converter that are no longer manufactured.

All 6.7 Powerstroke balanced assemblies from Choate Engineering come with the updated 6-bolt flexplate from 2013+ and require the customer to update the torque converter or purchase one from us directly.
2017+ 6.7 Powerstrokes have a larger Hole Diameter for the motor mounts and bolts.

This build Includes:

• Our Built-In-House Heads
• Magnuflux and Pressure Test Heads
• Upgraded Intake Valves 
• Upgraded Exhaust Valves
• All New Valve Guides
• New Valve Seals
• New Freeze Plugs
• Head Studs
• Full CNC blue print machining, (bore, deck, hone and line honed) 
• The Cylinder bores are blue print bored to a true 90 degrees from the crankshaft center line, prior to being diamond honed to within .0002 inch for precise piston to cylinder bore clearances.
• The cylinders are bored 90 degrees over the crankshaft.
• The piston diameter measured to the nearest .0001 inch matched to cylinder bores.
• The Cylinder block is surfaced to a finish of RA30 or lower, which meets the factory specification in both flatness and smoothness for the block to head sealing surface.
• This is mandatory for proper sealing of a MLS Gasket.
• Connecting Rods
• New Damper
• New Flexplate
• HX High Performance Bearings 

Check both wrist pin and crank pin to rod clearances

• New Pistons
• New Piston Rings
• New Pin Retainers
• New OE Lifters
• Lifter Guides
• OE Crank Flange Bolts
• Crankshaft – Balanced   and weight matched rotational assembly 
• Crankshaft-checked for run-out inspected for fatigue. Crankshaft is Polished and ground to .0005 concentricity or less
• Camshaft – Polished and Inspected
• New Rod Bearings
• New Main Bearings
• New Cam Bearings
• Push Rods
• Install Rear Main Seal
• Front Cover
• New Water Pump
• New Secondary Pump
• New Oil Pump
• Install New Rear Cover Gasket
• Install Upper Oil Pan
• Install Lower Oil Pan
• Install Pickup Tube O-ring
• Rear Cover Installed

CHOATE Engineering Performance Crate Engine Features :

This CHOATE engine is fully balanced, and is the perfect engine for spirited daily driving, consumer level towing and everyday life.
Upgrades over the Model C include but are not limited to:

• Torque Plate Honing;
• Full Engine Balancing
• New Flexplate
• New Harmonic Balancer
• Head Studs
• Rear Cover
• Water Pump
• Front Cover
• Oil Pump
• Secondary Pump
• Upper Oil Pan
• Lower Oil Pan
• Pickup Tube

Common Issues With The Ford Powerstroke 6.7L (and how we fix them)

• Main and Rod Bearing Clearance Issues- IE ,Spun Bearings. Our fix includes machining for the correct clearances as well as upgraded bearings designed to handle higher levels of stress.
• Valve Failures- OEM Exhaust Valves separate causing at the least, lost compression, at the worst, piston to valve contact causing catastrophic failure.
• We do not modify the existing valves as most do, we use an all new valve with better materials that do not have this high-heat separation issue.
• Crank Gear Spinning- Standard on all our 6.7L builds is a welded crank gear.
• 
• From Ford this gear is prone to spinning, throwing off timing, and bending all 32 pushrods.
• TIG welding the gear in place eliminates this issue.
• Cam Tunnel Misalignment- The issue here comes with the aftermarket fix which is to use larger clearance bearings. This in turn causes low oil pressure.
• Our 6.7’s see on average 5lbs more oil pressure at startup than others.