Speed Engineering's 2-piece plain valve covers use a hidden coil design for LS1, LS2, LS3, LS6, LS7, and LS9 engines. They use proven OE-style baffles and vents, include gaskets, and come with two billet oil fill caps and 3/8" breather tubes. The covers are compatible with factory GM coils "D51OC" (12570616) and work with factory or Speed Engineering spark plug wires.
⚠️ Important Notes:
- Works with standard GM coils "D51OC" (12570616)
- These covers are about 4-1/2" tall, which is taller than factory, and may not clear certain accessory drives. Check the configuration for proper clearance over the valve covers
- Center-mount design. Will not work on certain LS1 cylinder heads
Features:
- 2-Piece Hidden Coil Design
- Billet Oil Fill Caps: 2 included
- Factory Coil Compatible: GM "D51OC" (12570616)
- Spark Plug Wire Compatible: Factory or Speed Engineering wires
- OE-Style Baffles and Vents
- Gaskets Included
- 3/8" Breather Tubes
- Approximately 4-1/2" Tall
- Engines: LS1, LS2, LS3, LS6, LS7, LS9
FAQ
Which engines do these valve covers fit?
They fit LS1, LS2, LS3, LS6, LS7, and LS9 engines. They are a center-mount design and will not work on certain LS1 cylinder heads.
Which ignition coils do they work with?
They work with standard GM coils "D51OC" (12570616).
How tall are these valve covers?
They are about 4-1/2" tall, which is taller than factory, so they may not clear certain accessory drives. Check clearance before installing.
Are gaskets included?
Yes. Gaskets are included, along with two billet oil fill caps and 3/8" breather tubes.
Can I use my factory spark plug wires?
Yes. The covers work with factory spark plug wires or Speed Engineering spark plug wires.
