GM LS3 Aluminum Engine Block
Semi-finished 6.2L LS3 aluminum engine block casting for GM Gen IV small block V8 spark-ignition engines. Features priority main oiling and 4.065-inch bore provisions. 8409.91.99 as principal unfinished part for spark-ignition piston engines.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If machined but not engine-specific
Generic aluminum castings classify by material, not function
If injection molding machine components
Non-engine castings use machinery chapter classification
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Import Tips & Compliance
• Bore spacing and main cap girder design diagrams establish LS-series specificity
• Machining allowance specifications distinguish from fully machined blocks (8483)
• Foundry pour card and alloy certification (319 aluminum) required for validation
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H-beam forged steel connecting rod for Honda K20A 2.0L DOHC VTEC spark-ignition engine in Civic Type R. Features ARP 2000 rod bolts and optimized big-end bearing for high-revving performance. Falls under 8409.91.99 as a principal part for spark-ignition piston engines.
BMW S55 Cylinder Head
Aluminum CNC-ported cylinder head for BMW S55 3.0L twin-turbo inline-6 spark-ignition engine in M3/M4. Includes integrated Valvetronic system and direct injection passages. 8409.91.99 classification for spark-ignition IC engine principal parts.
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