Ford 351W Windsor 427Ci Stroker Turn-Key Crate Engine with Downdraft EFI

Unleash monstrous torque and reliable street/strip power with this fully built 351 Windsor to 427Ci stroker engine by Speedmaster. Featuring a boltin EFI downdraft injection system and complete serpentine drive kit, this turnkey engine delivers modern usability with vintage legend.

Brand:	Speedmaster
Part Number:	PCE284.1018.04
Part Type:	Crate Engine
Engine Assembly Style:	Complete
Crate Engine Cylinder Head Material:	Aluminum
Assembled:	Yes
Engine Balance:	External (uses 28oz externally balanced damper & flywheel)
Intake Manifold Included:	Yes (Downdraft EFI 8-Stack System)
Cylinder Heads Included:	Yes (210cc Aluminum Heads)
Carburetor Included:	No (uses EFI)
Throttle Body Included:	Yes (8 Stack EFI with integrated throttle bodies)
Distributor Included:	Yes
Oil Pan Included:	Yes (6 Qt Drag Front Sump Pan)
Valve Covers Included:	Yes
Timing Cover Included:	Yes
Water Pump Included:	Yes
Harmonic Balancer Included:	Yes (28oz External Balanced, SFI Rated)
Flexplate Included:	No
Flywheel Included:	No
Air Cleaner Included:	No
Spark Plugs Included:	Yes (Racing Copper Core Triple Electrode x8)
Spark Plug Wires Included:	Yes
Computer Included:	Yes (FiTech ECU, Ultra RAM model)
Wiring Harness Included:	Yes (Complete EFI wiring loom + handheld controller)
Rear Main Seal Style:	1-piece
Quantity:	Sold individually.
Notes:	Fully assembled 427ci Stroker crate engine with downdraft EFI system. Forged internals, aluminum heads, dyno tested. EFI system includes ECU, sensors, and 8-stack throttle bodies. Approx. 500+ HP and 550+ lb-ft torque.

Key Highlights

• 427 cubic inches of displacement built from a 351W Windsor block stroked to 4.170″
• Fully equipped FiTech Ultra EFI & Speedmaster downdraft system for drivability and fuel efficiency
• Double‑roller timing chain, hydraulic roller camshaft (approx. 242/248 @ .050"), CNC-balanced rotating assembly
• Forged internals: 4340 crank, H‑beam rods, DSS pistons, King bearings
• Aluminum 210cc heads with hardened guide plates and screw‑in studs
• Black DNA® 1.6 roller rockers, polished valve covers, and complete serpentine system
• Includes distributor, oil system, ECU, sensors, harness, and more
• Engine stand and dyno testing included

What's Included

A complete build from block to plug:

• Forged rotating assembly: crankshaft, rods, pistons
• 351W iron block with 4-bolt mains, bored and sleeved
• Hydraulic roller cam, matched lifters, timing set
• Fully assembled 210cc aluminum heads
• Complete FiTech EFI system with ECU, harness, handheld
• Serpentine accessory drive with black finish
• Cooling, ignition, oiling, and fuel accessories
• Wired, tested, and mounted on an engine stand

Why Choose This Engine?

• Turn-key ready: install with minimal prep
• EFI tuned power: modern fuel delivery and efficiency
• Built to last: forged internals, performance bearings
• Stylish finish: black and polished aluminum parts
• Everything included: no need to source extra parts

Applications

• Vintage Fords (Mustangs, Torinos, Broncos, Falcons) upgrading to modern power
• Hot rods, street rods, Pro‑touring builds looking for serious torque
• Lightweight trucks or SUVs needing extra grunt with EFI convenience
• Builders wanting reliable driveability without the hassle of tuning a carb