Chevy LS 378ci Head: LS3/L92 Bore: 4.075
- Bore: 4.075"
- Stroke: 3.622"
- Rod Length: 6.125"
- Compression Height: 1.300"
- Dome Height: +0.107"
- Dome/Dish Volume: +5.6cc
- Reference Chamber: 68.0cc
- Catalog Compression Ratio: 11.60:1
- Piston Weight: 530g
- Resulting Displacement: 378 cid
