Description
Chevrolet Performance Crate Engine (12677823) – Reliable Small-Block Power for Your Build!
Upgrade your classic muscle car or hot rod with the Chevrolet Performance Crate Engine (12677823)!
The Chevrolet Performance Crate Engine (12677823) is a high-quality replacement engine designed for reliability and durability. Featuring factory-spec internals and Chevrolet-engineered components, this fully assembled long block is an excellent option for restoring a classic Chevrolet or upgrading an aging engine. Whether you’re looking to maintain original factory performance or refresh your project car, this OEM-quality small-block is the perfect solution.
A factory-built small-block engine designed for reliability and ease of installation!
⚠️ Requires proper fuel system, cooling components, and exhaust system for installation.
What’s Included in the Chevrolet Performance Crate Engine?
✅ Fully Assembled Crate Engine – Designed for plug-and-play compatibility
✅ Factory-Spec Engine Block & Internals – Ensures long-term durability and smooth operation
✅ OEM-Spec Cylinder Heads – Provides efficient airflow and fuel combustion
✅ Timing Cover & Valve Covers Installed – Reduces installation time and complexity
⚠️ EXCLUDES intake manifold, carburetor, exhaust, fuel system components, and accessories.
Technical Specifications
| Feature | Details |
|---|---|
| Brand | Chevrolet Performance |
| Manufacturer’s Part # | 12677823 |
| Product Type | Crate Engine |
| Summit Racing Part # | NAL-12677823 |
| Assembled? | ✅ Yes |
| Engine Block Material | Cast Iron |
| Cylinder Head Material | Cast Iron or Aluminum (varies by model) |
| Engine Balance | Internal |
| Compression Ratio | Factory-Spec |
| Camshaft Type | Hydraulic Roller or Flat-Tappet (varies by model) |
| Rear Main Seal Style | 1-Piece |
| Induction System | Carbureted or EFI (dependent on setup) |
| Intake Manifold Included? | ❌ No |
| Carburetor Included? | ❌ No |
| Distributor Included? | ❌ No |
| Oil Pan Included? | ✅ Yes |
| Valve Covers Included? | ✅ Yes |
| Timing Cover Included? | ✅ Yes |
| Water Pump Included? | ❌ No |
| Harmonic Balancer Included? | ❌ No |
| Flexplate Included? | ❌ No |
| Flywheel 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 |
| Quantity | Sold Individually |
Designed for classic Chevrolet builds, reliable replacements, and performance upgrades!
Fitment & Compatibility
✔ Perfect for Chevrolet Small-Block Applications & Engine Swaps
✔ Compatible with Most GM Performance Accessories
✔ Designed for Classic Chevrolet Vehicles & Restorations
Confirm engine specifications and compatibility with your specific vehicle before ordering.
Installation Notes & Recommendations
Professional Installation Recommended – Ensures proper fitment and performance
⚙️ Requires Proper Fuel System & Ignition Components – Not included with the crate engine
Cooling & Exhaust System Compatibility Needed – Must be matched to vehicle’s drivetrain and components
⚠️ Not emissions-certified—check local regulations before installation.
❓ Frequently Asked Questions (FAQ)
What vehicles is this engine compatible with?
- This Chevrolet Performance Crate Engine is designed for classic GM small-block applications, including hot rods, street rods, and vintage Chevrolet vehicles.
Does this engine come fully assembled?
- Yes, the engine comes fully assembled but does not include an intake manifold, carburetor, ignition system, or accessories.
Can I install this engine in a modern vehicle?
- It is primarily intended for classic Chevrolet vehicles and custom builds but may be adaptable to modern applications with the correct accessories and fuel management system.
What fuel does this engine require?
- This engine is designed for standard pump gasoline, but performance tuning may require premium fuel.
Is this engine covered under warranty?
- Warranty details vary by supplier—please check with your retailer for specific coverage.
Order Your Chevrolet Performance Crate Engine Today!
Upgrade your classic Chevrolet with a factory-engineered small-block replacement!
✔ OEM-Quality Small-Block for Classic Chevrolet Restorations & Upgrades
✔ Built for Durability, Performance, and Hassle-Free Installation
✔ Factory-Tested for Long-Term Reliability & Smooth Operation
✔ Ideal for Hot Rods, Street Builds, and Vintage Chevrolet Applications
ORDER NOW & POWER YOUR BUILD WITH RELIABLE CHEVROLET PERFORMANCE!
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