The SoCal billet main are designed to eliminate the catastrophic failures experienced with the factory main caps collapsing making them a vital upgrade for any high performance engine build.
These billet main caps are precisely machined and ground out of high strength aircraft quality steel to ensure maximum strength and durability.
Important Notes:
Block must be align-bored prior to installation.
The rear cap is machined to accept a 360 degree thrust bearing, an additional set of thrust bearings must be purchased to take advantage of this feature.
Features & Benefits:
- Increased Strength & Integrity
- Prevents Main Cap Failures
- High Quality Billet Construction
- Drilled & Tapped For Easy Removal
- Recommended For 800+HP Performance Builds
- Compatible With The 2001-2016 GM Duramax
