⚓ ATK Marine Rebuilt 5.7L V8 Small Block Long Block Engine (VMM6) – High-Performance Marine Power!
🏆 Upgrade your boat’s power with the ATK Marine Rebuilt 5.7L V8 Long Block Engine!
The ATK Marine Rebuilt 5.7L V8 Long Block Engine (VMM6) is a marine-ready replacement designed for 1987-1995 applications with block casting numbers 548, 526, 148, or 638. Featuring a 1-piece rear main seal, 12-bolt intake, and steel front cover, this engine is built for longevity and high performance in marine conditions.
⚠️ This engine is designed for marine use only and is NOT intended for automotive applications.
🔹 What’s Included in the ATK Marine Long Block Engine?
✅ 5.7L (350 C.I.D.) V8 Remanufactured Marine Long Block – Fully assembled and tested
✅ Heavy-Duty Marine Camshaft – Optimized for boat applications
✅ Special Marine Pistons & Rings – Built to withstand marine environments
✅ New Intake & Exhaust Valves – Ensures smooth airflow and combustion
✅ New Valve Lifters, Rocker Nuts & Swivels – Improves valve train operation
✅ New Main, Rod, and Cam Bearings – Enhances durability and engine longevity
✅ Heavy-Duty Double Roller Timing Chain – Provides accurate and consistent timing
✅ Cam Sprocket & Crank Gear – Essential components for a reliable engine build
✅ Freeze Plugs – Designed to resist corrosion in marine environments
✅ Steel Front Cover – Strong and durable for marine use
✅ Aluminum Oil Pan – Lightweight and corrosion-resistant
⚠️ EXCLUDES intake manifold, water pump, distributor, carburetor, flywheel, flexplate, and spark plugs.
🔹 Technical Specifications
| Feature | Details |
|---|---|
| Brand | ATK Marine Engine |
| Manufacturer’s Part # | VMM6 |
| Product Type | Rebuilt Long Block Crate Engine |
| Summit Racing Part # | HME-VMM6 |
| Crate Engine Family | Chevy Small Block |
| Actual Displacement | 5.7L / 350 C.I.D. |
| Horsepower | N/A (varies by setup) |
| Compression Ratio | Standard marine spec |
| Assembled? | ✅ Yes |
| Camshaft Type | Hydraulic Flat Tappet |
| Cylinder Heads Included? | ✅ Yes (Cast Iron) |
| Fuel System | ❌ Not Included (Requires carburetor or EFI setup) |
| Distributor Included? | ❌ No |
| Valve Covers Included? | ✅ Yes |
| Timing Cover Included? | ✅ Yes (Steel Front Cover) |
| Oil Pan Included? | ✅ Yes (Aluminum) |
| Harmonic Balancer Included? | ❌ No |
| Water Pump Included? | ❌ No |
| Flywheel Included? | ❌ No |
| Flexplate Included? | ❌ No |
| Air Cleaner Included? | ❌ No |
| Spark Plugs Included? | ❌ No |
| Spark Plug Wires Included? | ❌ No |
| Computer Included? | ❌ No |
| Wiring Harness Included? | ❌ No |
| Supercharger Included? | ❌ No |
| Remanufactured? | ✅ Yes |
| Quantity | Sold Individually |
💪 A high-quality, marine-ready replacement engine for your vessel!
🔹 Fitment & Compatibility
✔ Direct replacement for 1987-95 5.7L marine engines
✔ Compatible with block casting numbers 548, 526, 148, or 638
✔ Designed for standard marine rotation
✔ Requires proper marine accessories for complete installation
💡 Confirm compatibility with your boat before purchasing!
🔹 Installation Notes & Recommendations
🔧 Professional Installation Recommended – Ensures proper break-in and maximum longevity
⚙️ Carbureted or EFI Setup Required – Compatible with various marine fuel systems
🔩 Break-In Procedure Required – Ensures optimal performance & durability
⚠️ Some additional components may be required for installation.
❓ Frequently Asked Questions (FAQ)
🔹 What boats is this engine compatible with?
-
It fits 1987-95 marine applications with block casting numbers 548, 526, 148, or 638.
🔹 Does this engine come with a fuel system?
-
No, you need to add a carburetor or EFI setup separately.
🔹 Is a computer required for this engine?
-
No, this engine does not require a computer or wiring harness.
🔹 What tuning is required?
-
Proper ignition timing and fuel mixture adjustments will optimize performance.
🔥 Order Your ATK Marine 5.7L V8 Long Block Crate Engine Today!
🏆 Get your boat back in action with the ATK Marine 5.7L V8 Long Block Engine!
✔ Remanufactured to OEM Specs for Maximum Reliability
✔ Built Specifically for Marine Applications
✔ Includes Heavy-Duty Marine Components
✔ Perfect for Replacing or Upgrading Your Boat’s Engine
🛒 ORDER NOW & EXPERIENCE UNMATCHED MARINE PERFORMANCE! 🚤💨
ATK Marine rebuilt engines include:
* Special marine pistons and rings
* Special marine camshaft
* Marine gaskets
* New intake and exhaust valves
* New main, rod, and cam bearings
* New valve lifters, rocker nuts, and swivels
* Heavy-duty double roller timing chains
* Cam sprocket
* Crank gear
* Freeze plugs
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