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ATK Ford 347 Stroker 450HP HP100M Stage 2 Mid-Dress Engine
When running a custom carburetor setup, the ATK High Performance HP100M Ford 347 provides a robust 450 horsepower Stage 2 foundation to simplify custom speed shop installations.
- 5.7L stroked displacement creates massive street torque
- 10.0:1 compression ratio handles street loads
- Retro-fit hydraulic roller cam improves valve lift stability
- Included flywheel matches manual transmission builds
- Aluminum heads shed engine weight efficiently
Description
The robust mid-dress performance configuration of the ATK Ford 347 Stroker 450HP HP100M Stage 2 Mid-Dress Engine accelerates high-horsepower restomod projects. Experience instant throttle response and massive mid-range torque during weekend cruise events. This build utilizes a pre-installed carbureted intake manifold to deliver four hundred fifty horsepower reliably.
Engine Architecture & Core Specifications
- Block Material: Cast iron Ford Windsor Small Block, precision machined.
- Cylinder Heads: High-performance aluminum cylinder heads.
- Compression Ratio: 10.0:1 advertised compression ratio.
- Bore & Stroke: 4.030 inch bore x 3.400 inch stroke (347 CID / 5.7L).
- Rotating Assembly: Externally balanced 28 oz imbalance with a retro-fit hydraulic roller camshaft.
Component Breakdown: Mid-Dress Performance Long Block
This partially assembled engine accelerates your powertrain swap project by including major induction hardware pre-installed.
- A matched carbureted intake manifold pairs with the included distributor and harmonic balancer to simplify front drive integration immediately out of the crate.
- Heavy duty aluminum cylinder heads resist thermal fatigue while the pre-installed oil pan and flywheel streamline the bottom end installation securely.
Vehicle Fitment & Compatibility Matrix
Engineered as a comprehensive powertrain solution this mid-dress Windsor engine drops effortlessly into iconic Ford muscle cars. Sourcing one of our heavy-duty Ford 347 crate engines bypasses complex machine shop delays.
- Fits 1965-1973 Ford Mustang models replacing tired small blocks perfectly.
- Fits 1966-1977 Ford Bronco platforms seeking massive low end torque upgrades.
- Fits 1967-1973 Mercury Cougar chassis acting as a direct fit performance replacement.
- Fits classic Ford F-100 pickup trucks looking for aggressive towing and street power.
Fuel & Ignition System Requirements
Proper fuel delivery dictates the final performance output of this carbureted platform.
- A high flow 750 CFM carburetor is required to supply the intake manifold while utilizing 91 Octane premium pump gas prevents pre-ignition under load.
- The included distributor mandates a direct twelve volt ignition source bypassing factory resistor wires to guarantee a powerful spark.
Installation, Break-In Oil & Priming Instructions
Professional mechanical preparation separates a successful engine build from a catastrophic premature failure.
- Fill the crankcase with a high zinc break in oil before manually priming the oil system with a dedicated priming tool until pressure is verified.
- Perform a varied RPM heat cycle before changing the oil and driving conservatively for the first 500 miles.
USA Warranty, Emissions & Logistics
Investing in this ATK High Performance crate engine secures peace of mind through comprehensive manufacturer backing.
- Backed by a strict 1-Year manufacturer warranty this engine provides excellent protection against internal manufacturing defects when installed properly.
- Designated strictly for Race Use Only on non-pollution controlled motor vehicles this package ships securely via LTL freight.
ATK High Performance Ford 347 Stroker 450 HP Stage 2 Long Block Crate Engines HP100M Specs
| Brand | ATK High Performance Engines |
|---|---|
| Manufacturer's Part Number | HP100M |
| Part Type | Crate Engines |
| Product Line | ATK High Performance Ford 347 Stroker 450 HP Stage 2 Long Block Crate Engines |
| Summit Racing Part Number | HPE-HP100M |
| UPC | 653517408014 |
| Crate Engine Family | Ford Windsor |
| Actual Engine Displacement | 5.7L/347 |
| Crate Engine Cylinder Head Material | Aluminum |
| Engine Block Material | Cast iron |
| Assembled | Yes |
| Engine Balance | External, 28 oz. imbalance |
| Cam Style | Hydraulic roller, Retro-fit |
| Rear Main Seal Style | 2-piece |
| Intake Manifold Included | Yes |
| Intake Manifold Style | Carbureted |
| Cylinder Heads Included | Yes |
| Carburetor Included | No |
| Throttle Body Included | No |
| Distributor Included | Yes |
| Oil Pan Included | Yes |
| Valve Covers Included | Yes |
| Timing Cover Included | Yes |
| Water Pump Included | Yes |
| Harmonic Balancer Included | Yes |
| Flexplate Included | Yes |
| Flywheel Included | Yes |
| Air Cleaner Included | No |
| Spark Plugs Included | No |
| Spark Plug Wires Included | No |
| Computer Included | No |
| Wiring Harness Included | No |
| Supercharger Included | No |
| Quantity | Sold individually. |
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