loading
reading
writing
saving
searching
Chevy 454 Block 10069286 Factory 4-Bolt Main Hi Perf .060 Over 4.310 - $1,600 (Redding)
condition:
good
make / manufacturer:
Chevrolet
QR Code Link to This Post
Up for sale is a highly sought-after, original Chevy 454ci High-Performance heavy-duty engine block. Carrying the legendary 10069286 casting number, this is a true factory over-the-counter GM Performance Parts service block that did not come factory-installed in a production vehicle. It features a premium high-nickel iron composition and heavy-duty factory 4-bolt main caps, making it an incredible high-strength foundation for a high-horsepower drag race, marine, or street-strip machine.
The engine block has been hot-tank cleaned, visually inspected, and is currently sitting at a .060 overbore (4.310-inch cylinder diameter), leaving plenty of wall mass intact due to its heavy-duty casting architecture.
Block Specifications & Casting Stamp Directory:
• Main Casting Number: 10069286 (Premium Factory High-Performance Over-The-Counter Crate Block)
• Foundry Casting Date Code: A82 (Cast on January 8, 1992)
• Factory Structural Performance Marks: Molded HI PERF and PAS identifiers
• Foundry Origin Stamp: CFD (General Motors Central Foundry Division)
• Production Track Numbers: GM 741, GM3P, 14079, 3, H, 74
• Original Displacement Application: 454 Cubic Inches
• Current Bore Diameter: 4.310 inches (.060 Overbore)
• Engine Family Identification: Big Block Chevy (BBC) Mark IV Short Deck
• Main Cap Configuration: Factory 4-Bolt Mains for extreme bottom-end rigidity
• Cylinder Wall Style: Genuine heavy-duty Siamese cylinder bores
• Material: Heavy-Wall Premium Structural High-Nickel Cast Iron
Key Features; Structural Details:
• Factory Over-The-Counter Heritage: This block was sold directly through Chevrolet parts counters as a heavy-duty race component. It was never born in a production passenger car, meaning it lacks a vehicle VIN derivative and was designed from day one to handle heavy performance use.
• Factory 4-Bolt Mains: Includes the genuine, original Chevrolet heavy-duty 4-bolt main caps, delivering exceptional clamping force, preventing cap walk, and maximizing bottom-end rigidity under high stress.
• Premium High-Nickel Casting: Poured at GM's Central Foundry Division using a highly durable, high-nickel iron alloy engineered specifically by GM Performance Parts to handle extreme horsepower thresholds.
• Siamese Cylinder Walls: Features solid iron mass between adjacent cylinder bores for maximum wall rigidity and pressure containment, complete with factory-machined coolant slots.