12498778 - GM 454CID Short Block Assembly
This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.
454 HO Partial Engine(short block) Used as the basis for GM's 454/425hp and 454/440hp Crate engines.
Specifications: Engine Includes: Warranty:
Displacement: 454 CID
Bore x Stroke: 4.250” x 4.000”
Compression Ratio: 9.6:1 (with 110cc Heads)
Block: Cast Iron, 1 piece rear seal, 4-bolt main caps.
Crankshaft: Forged Steel
Connecting Rods: Forged Steel
Pistons: Forged Aluminum
Maximum GM Recommended RPM: 5500
Ignition Timing: Base 4 degrees BTDC, 26 degrees total
• Fully GM assembled long block
• Oil pump, pick-up and oil pan
• 14” Auto Trans Flexplate
• 8” Harmonic Balancer
• Front timing cover
• Oil Filter and Adapter
• Passenger Side RH Oil Dipstick and Tube
General Motors limited 2 year / 50,000 mile parts & labor warranty. Click on Document tab above for full details.
- Item Requires Shipping
- 500.0 lbs.
- W27.0000” x H26.5000” x L30.5000”
- Free Shipping!
- FREE 48 State Truck Freight Shipping (International shipping will require freight quote)
Total Reviews (0)
Write the First Review!
You must login to post a review.
May We Suggest
- We don’t just want your business today. We want to EARN your business for LIFE!
- USA Owned, Operated & Employed
- Installers & Resellers Click Here to Apply
We Specialize In:
- GM LS Conversions
- Engine & Trans Combo Kits
- Unique Ready to Run Engines
- Have a question?
- to Email our Sales & Tech Staff
- 888-748-4655 Mon-Fri 8AM-6PM EST
- Click above for 24/7 Live Chat Service.