CHOATE 7.3L Short Block Workhorse Engine 1994-2003 - Power Stroke Ford Diesel Engine. Manufacturer: CHOATE Engineering Performance
CHOATE Part Number: CEP73SW
DID YOU KNOW? NO MAJOR PARTS* ARE REUSED AT CHOATE! LIFTERS, ALL BEARINGS, AND ALL PISTONS ARE BRAND-NEW PARTS. THIS PUTS CHOATE AT THE FOREFRONT OF THE ENGINE BUILDING INDUSTRY STANDARD. MANY BUILDERS REUSE THESE SAME PARTS. ALWAYS ASK YOUR ENGINE BUILDER IF THESE ITEMS ARE NEW OR USED.*While Choate supplies more new parts than those mentioned above. These are the major items that are often overlooked by others.
This 7.3L Power Stroke Short Block Build Includes:
- Coated, Flycut, and Delipped pistons
- Stage 2 Camshaft
- Billet Flex plate
Build Features:
- 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.
- We main bore and line hone the crankshaft which is honed to precisely align the crankshaft in the engine block.
- We bore the block back to the crankshaft center line and hone the block to RA13 finish.
- 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 and Flex plate for Automatic transmission.
- All Manual will be charged the appropriate charges and will be balanced to a stock flywheel we have in stock or you will need to send in your Aftermarket in first.
- Check both wrist pin and crank pin to rod clearances
- New Maxxforce HD Design Pistons .010-.040 over
- New Pistons, Rings, Pin Retainers weight matched prior to crank balancing
- Crankshaft - Balanced with the Rotational assembly checked for run-out inspected for fatigue.
- Crankshaft is Polished and ground to .0005 concentricity or less
- New OE Lifters, Lifter Guides and OE Crank Flange Bolts
- Camshaft - Polished and Inspected
- New Rod, Main and Cam Bearings
- Install New Rear Cover Gasket
- Install Rear Main Seal
- Install New Bed Seals
- Install New Rear Cover Gasket
- Install Upper Oil Pan Gaskets(Note: we do not install lower oil pan gasket)
- Install Pickup Tube O-ring
- -Rear Cover Installed
CHOATE Engineering Performance Crate Engine Features :
400 HP rated. Designed with the working man in mind. The perfect platform for those who do heavy hauling regularly. Fully balanced.
Upgrades over the Daily Driver include but are not limited to:
- O-Ringed Heads
- Billet Flex Plate
- Coated, Fly Cut and Delipped Pistons
- Stage 2 Cam
- Chromoly Pushrods
- Welded Cam Gear
Common Issues With The Ford Power Stroke 7.3L Block and Heads (and how we fix them)
- Valve Issues- The 7.3L was plagued with inferior valve and seat material from the factory.
- The original design used parent material for the seats.
- And the seats were known to wear at higher rates causing the valve to sink further into the head.
- The valves of the 7.3 are commonly known to wear down well below the margins.
- Leaving razor sharp edges that can fail leaving the piston to take on the remainder of the valve in the cylinder.
- We only use brand new valves that exceed OEM standards, which do not have this issue.
- Excess Sand From Casting Process
- Excess Sand from the manufacturing process while uncommon, can clog the oil cooler, but more commonly would beat upon the water pump causing premature failure.
- By use of our extensive cleaning methods thru media blasting,
- furnaces, spray cabinets, hot tanks, and ultra sonic equipment, we have protected your investment.
- Powdered Metal Rods- For the most part, 2001-2003 7.3L's came with Powdered Metal Rods that were prone to failure around the 400 HP mark.
- These rods are only an issue at higher HP levels which is why we use forged rods for anything above 400 HP.
Optional Parts are not installed. Optional parts are covered under the manufacturer's warranty and not by CHOATE.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.