Speedmaster®
Ford 351W Windsor 427Ci Stroker Turn-Key Crate Engine with Downdraft EFI
Overview
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.
Specs
| 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. |
Description
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
Brand Information
In 1979, the company was founded with Pete's Performance, which was a small speed workshop. It began by building engines for customers as a hobby, and it has now grown to include selling, assembling, manufacturing and racing high performance engine parts. Over the years, the company has grown into a worldwide high performance powerhouse. Growing from a one-man bricks-and-mortar business; to now a supply chain in which entails more than 400+ people all across the world. Today, Pete's Performance has evolved into the internationally known Speedmaster: which has distribution centres and offices is Sydney, Los Angeles and Shanghai.
Prop 65 Warning
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.