ATK High Performance Ford 351W 385 HP Stage 3 Long Block Crate Engine — HP11C
385 horsepower the honest way — heads, compression and cam, no stroker required. The ATK HP11C is the Ford Windsor engine taken to its natural limit: the classic 351W recipe of bore, stroke and aftermarket support, refined to Stage 3 with Dart Pro 1 aluminum heads, 9.8:1 compression and a hydraulic roller cam on a seasoned 1993–1997 OE roller block. Everything the Windsor platform promised — torque, compact size, endless parts support — delivered as a balanced, dyno-tested long block with documentation and ATK’s 2-year/unlimited-mileage warranty. Crated and shipped fast across Europe from NH Race Engine.
Why Choose the ATK HP11C Ford Windsor Engine?
There’s a ceiling on what factory E7TE iron heads and 9.1:1 compression can give you — and the Stage 2 HP09M sits right on it. The HP11C breaks through it with the two upgrades that actually matter: Dart Pro 1 aluminum heads, whose ports flow at a level factory castings never approached, and 9.8:1 compression, which wakes the whole combination up. Add a genuine hydraulic roller cam and the result is 85 horsepower over Stage 2 — with less front-end weight and the full Dart aftermarket behind you.
Because it’s built on the 1993–1997 OE roller block — the strongest factory Windsor architecture — with a 1-piece rear main seal and 28-oz external balance, it installs exactly where a stock 351W lived: same mounts, same bellhousing pattern, same routine. Your remaining shopping list is short: intake, carburetor or EFI, ignition, pan, water pump and headers. Your dyno sheet ships in the crate — 385 HP and 410 lb-ft are your engine’s documented numbers, not catalog claims.
Ford Windsor Engine Key Features & Benefits
- 385 HP / 410 lb-ft — Dyno-Tested: every engine is run and certified by ATK before crating; documentation included.
- Dart Pro 1 Aluminum Heads: the benchmark Windsor performance head — CNC-ported-pattern chambers, weight savings up front, deep aftermarket support.
- 9.8:1 Compression: real performance compression that still runs on European 98–99 RON premium pump fuel.
- Seasoned OE Roller Block (1993–1997): factory roller provisions, 1-piece rear main seal — the strongest Windsor foundation available.
- Hydraulic Roller Cam: modern valvetrain durability, EFI-friendly vacuum, zero valve-lash maintenance.
- 28-oz External Balance: correct 1981+ Ford small-block balance — pair with a 28-oz, 164-tooth flexplate or flywheel only.
- Stage 3 Value: the Windsor ladder’s top step before stroker complexity and cost.
- 2-Year / Unlimited-Mileage Warranty: supported in Europe by NH Race Engine.
Ford Windsor Engine Recommended Applications
The HP11C suits builds where the Windsor’s character matters and stock-plus isn’t enough:
- Classic Mustangs & Cougars: the era-correct performance upgrade — more power, less nose weight
- Broncos & Trucks: torque-rich repower with modern valvetrain reliability
- Hot Rods & Street Machines: 385 HP with aluminum-head manners and pump-gas compression
- Restomods: accepts modern EFI conversions (Holley Sniper) without exotic parts
- Street & Strip: the Windsor ladder’s top rung before stroker territory
Notes: long block — you supply intake manifold, carburetor/EFI, distributor, oil pan (front sump pattern), water pump, balancer (28-oz), headers, starter, battery and transmission. The EFI-inclined should see the HP11C-EFI with FiTech installed.
Technical Specifications
| Part Type: | High Performance Crate Engine — Stage 3 Long Block |
| Product Line: | ATK High Performance Ford 351W (Stage 3) |
| MPN: | HP11C |
| Summit Part No.: | HPE-HP11C |
| Power: | 385 HP / 410 lb-ft |
| Displacement: | 351 cu in / 5.8L |
| Bore x Stroke: | 4.040″ x 3.500″ |
| Block: | Seasoned OE roller block, 1993–1997, 1-piece rear seal |
| Crankshaft: | OE Ford cast, 3.500″ stroke, 28-oz external balance |
| Rods / Pistons: | OE steel rods / hypereutectic, 9.8:1 · moly rings |
| Camshaft: | Hydraulic roller |
| Cylinder Heads: | Dart Pro 1 aluminum |
| Balance: | External, 28 oz · 164-tooth flexplate |
| Warranty: | 2 years / unlimited mileage |
| Assembled: | Yes — sold individually |
What’s Included vs. What You Supply
| Component | Included | You Supply |
|---|---|---|
| 351W block, rotating assembly (zero-hour) | ✅ | — |
| Dart Pro 1 aluminum heads & roller valvetrain | ✅ | — |
| Hydraulic roller cam & lifters | ✅ | — |
| Intake manifold | — | ✅ |
| Carburetor / EFI system | — | ✅ (see HP11C-EFI for FiTech) |
| Distributor & ignition | — | ✅ |
| Oil pan (front sump) & timing cover | — | ✅ |
| Water pump & pulleys | — | ✅ |
| Harmonic balancer (28-oz) | — | ✅ |
| Flexplate / flywheel (28-oz, 164-tooth) | — | ✅ |
| Headers & exhaust | — | ✅ |
| Starter & battery | — | ✅ |
| Transmission (C4/C6/AOD/T5 pattern) | — | ✅ |
The Windsor Ladder — HP09 vs HP09M vs HP11C
| Feature | HP09 / HP09M (Stage 1–2) | HP11C (This Engine) |
|---|---|---|
| Power | 300 HP / 377 TQ | 385 HP / 410 TQ |
| Heads | OE E7TE cast iron | Dart Pro 1 aluminum |
| Compression | 9.1:1 | 9.8:1 |
| Block | 1987–1995 roller | 1993–1997 roller |
| Best for | Stock-plus street builds | Serious performance street |
Frequently Asked Questions
What exactly changes from Stage 2 to Stage 3?
Three things: heads, compression and cam character. Stage 2 runs reconditioned factory E7TE iron heads at 9.1:1; Stage 3 upgrades to Dart Pro 1 aluminum heads at 9.8:1 with a stronger hydraulic roller cam — roughly 85 more horsepower, less weight over the nose, and access to the deep Dart aftermarket.
Which balancer and flexplate do I need?
28-oz external balance only — the HP11C is a 1981+ Ford small-block balance. Use a 28-oz harmonic balancer and a 28-oz, 164-tooth flexplate or flywheel. Never 50-oz parts: vibration and bearing damage follow.
Does it run on European pump fuel?
Yes — at 9.8:1 with aluminum heads, the HP11C is designed for premium pump fuel; European 98–99 RON is ideal. No race gas, no additives.
Is there an EFI version?
Yes — the HP11C-EFI is the same Stage 3 engine with FiTech fuel injection installed. Contact us for pricing and availability.
Is the warranty valid in Europe?
Yes — ATK’s 2-year/unlimited-mileage warranty is supported in Europe through NH Race Engine directly. Full terms ship with your crate.
Recommended Companion Products
- 650–750 CFM carburetors & air cleaners
- Dual-plane intake manifolds — 351 Windsor
- EFI conversion kits — Holley Sniper
- 28-oz balancers, flexplates & flywheels — 164-tooth
- Headers & exhaust for 351 Windsor
- Cooling packages for classic Ford
- C4 / C6 / AOD / T5 transmissions
- Break-in oil & assembly lubricant
- ATK HP09M — 351 Windsor crate engine (Stage 2)
- ATK HP80 — 347 stroker alternative
- All crate engines — remanufactured & high performance
Shipping Your Ford Windsor Engine Across Europe
NH Race Engine ships ATK Ford Windsor engine crates across Europe from our EU warehouse. Engines ship crated on a pallet via insured freight carrier with full tracking — ATK dyno documentation and warranty paperwork included.
Estimated delivery: Netherlands 3–5 business days | Germany, Belgium, France 5–7 business days | Rest of EU 7–10 business days
Liftgate delivery available on request. Contact us for a freight quote to your address or workshop.
Order Your ATK HP11C Ford Windsor Engine Today
Dart heads, real compression, roller valvetrain, documented power. The ATK HP11C Ford Windsor engine is the Stage 3 sweet spot — built stronger than stock, delivered with its dyno sheet, and backed in Europe by NH Race Engine.
Contact our technical team with your vehicle and build goals for a complete package quote, or click “Add to Cart” now to secure yours.
SKU: ATK-HP11C | MPN: HP11C | Brand: ATK High Performance Engines | Category: High Performance Crate Engines / Ford Windsor
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