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- Vortec 8.0L/488ci Crate Engine
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- Designed for gasoline or CNG/LPG on-highway applications.
- Tall-deck block design (10.2" deck height).
- Full-length water jackets (non-Siamese cylinders).
- Thicker main bearing webs with four-bolt main caps.
- Forged steel crankshaft and connecting rods
- Double-row roller timing chain.
- Anodized pistons with full floating wrist pins offer CNG/LPG capability.
- Hardened valve seats (intake and exhaust) for CNG/LPG durability.
- Stainless steel intake and exhaust valves for CNG/LPG durability.
- Adjustable valve train.
- Fast Burn cylinder heads for fuel efficiency and power.
- 58x Crankshaft positioning sensor capability
- 4x Camshaft positioning sensor capability.
- Flat-response knock sensor capability.
- Coil-near-plug configuration.Specifications:
- Displacement: 8.0L
- Displacement: 488ci
- Bore x Stroke: 4.270" x 4.250"
- Block: Tall deck (10.2")
- Fuel Requirements: LPG/CNG
- Crankshaft: Forged steel
- Connecting Rods: Forged steel
- Firing Order: 1-8-7-2-6-5-4-3
- Connecting Rod Ratio: 1.58:1
- Pistons: Hypereutectic w/anodized top ring land
- Camshaft Type: Hydraulic roller
- Cylinder Heads: Fast Burn iron
- Damper: Cast iron
- Valve Train: Fully adjustable
- Compression Ratio: 9.9:1 nominal
- Crankcase Capacity: 8 Qts
- Maximum Recommended RPM: 4,500
- Balanced: Internal
Truck Power with Gas, CNG or LPG fuels
When it comes to grunt work like pulling your car hauler or offshore racing boat, Chevrolet Performance's heavy-duty 8.0L Big-Block does the job like no other gas engine. It's designed to accommodate gasoline, CNG or LPG fuels, and because it's a Big-Block, it delivers strong, low-rpm torque.
The 8.0L's foundation starts with a forged steel crankshaft and forged connecting rods for great strength. A long, 4.250-inch stroke helps maximize torque, 10.2" tall deck height features full-length water jackets, thicker main bearing webs and four-bolt main caps for reliability when needed most. It also features a crank-triggered ignition system, with 4x camshaft and 58x crankshaft reluctor wheels.
Assembly comes with heads and a balancer installed. An induction system, ignition, starter, water pump and other accessories are required to finish the engine. Requires an intake manifold designed for a tall-deck block or conventional big-block intake manifold with spacers.
Note: The engine can support fuel injection and also has a provision for a mechanical fuel pump (the production 8.0L camshaft does not have a fuel pump lobe). Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur. Spark plugs not included.
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