Vehicle Fitment
This part is universal
- Fits Following Engines: 454 CID Chevy Big Block V8.
Product Details
Aluminum Engine Block by Speedmaster®. Build your dream engine The next level of performance is these aluminum Chevy Big blocks. Block is ready for the street racer or all out racer with added strength and cubic inches. All the factory flaws redesigned to eliminate all problems, still using the original water jacket design. Blocks are cast from highest quality aluminum with extra-thick cylinder sleeves and decks. The blocks webs are stronger and fitted with billet steel 4-bolt billet main caps. Ideal for sprint cars, modifieds, late model stock cars, dragsters, unlimited open competition classes, supercharged, turbocharged and nitrous applications! Used in 2000+HP Applications!. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a hassle free installation, this reliable product can help you get you vehicle back on the road faster and easier.
Notes
- Check hood clearance before installing.
Specifications
| Cylinder Bore Diameter: 4.500" |
| Bore & Stroke: 4.600" x 4.500" Max Recommended |
| Cam Journal OD: Standard BBC |
| Cam Plug: 2.215" Dia. Cup Plug |
| Cylinder Wall Thickness: 0.300" min @ 4.600" Bore |
| Deck Height: 9.800" |
| Deck Thickness: 0.600" Min |
| Fuel Pump: Standard Mechanical Provision |
| Fuel Pump Pushrod: Standard Length |
| Freeze Plugs: 1-5/8" Press In Cup Plugs |
| Lifter Bores: BBC 0.8427-0.8437" +.300 (Gen V. VI Style) |
| Main Bearing Size: STD BBC |
| Main Bearing Bore: 2.937" - 2.938" |
| Main Cap Bolts: |
| #1 1/2" (2) 3/8" (2) |
| #2, 3, 4 1/2" (2) Splayed (2) |
| #5 1/2" (2) 3/8" (2) |
| Main Cap Press: 0.005" |
| Main Caps: All 5 Billet Steel. 3 Center Caps Splayed |
| Main Cap Register: Deep Stepped Register (No Need for Dowels) |
| Oil System: Wet Sump - Main Priority Oiling (Can Use Dry Sump) |
| Starter: Standard BBC/ Gen IV |
| Stud Holes, Head: Blind Tapped |
| Timing Chain/Gears: Standard BBC Gen IV |
| Timing Cover: GEN IV |
| Torque Specs: All 1/2" Bolts - 105ft lbs. |
| Weight: 160 Lbs @ 4.500" Bore |
Features
- Created by professionals to meet your requirements
- Superior longevity and dependability
- Expertly Crafted using premium-grade materials
Founded in 1979, Speedmaster® has become a leader in its field, built on a long term consistency of being a specialist in aftermarket automotive components. It began as a small speed workshop building engines for customers as a hobby, and now the company has grown from a one-man bricks-and-mortar business into a worldwide high-performance powerhouse known for assembling, manufacturing and racing high-performance engine parts. Speedmaster’s mission is to push innovation boundaries to create visually distinctive DNA, by blending old and new technology into functionality and aesthetics. Its empowered work forced drives innovation not only in the products it makes but with the way it goes about doing it. The ultimate token of precision, Speedmaster is the world’s only major parts manufacturer to equip cars from Standard replacement to Top Fuel Dragsters. Surviving the longevity of road, race and recreation is mandatory for all Speedmaster “Track Proven” products, bringing you closer to product perfection.
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