
Chevrolet Performance
Chevrolet Performance Crate Engines 12677823
SKU: fa7c67d1cac2
$4,157.75
In stockContact us for details.
Buy now
Shipping estimator
Enter a ZIP code for delivery guidance.
Need help confirming fitment?
Our specialists verify compatibility before you order.
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!
Brand: Chevrolet Performance
Manufacturer’s Part Number: 12677823
Part Type: Crate Engines
Summit Racing Part Number: NAL-12677823
Nationwide shipping
Secure checkout
Expert fitment support

