Increase bottom end strength. Pro Series Main Bearing Caps are manufactured in the USA from premium billet steel that has undergone stringent heat treating. Many caps listed convert two-bolt main block to more durable four-bolt mains
- Main Cap Position:
- 4-center
- Main Cap Fastener Style:
- Straight
- Main Cap Fastener Quantity:
- 4-bolt
- Main Journal Type:
- Chevy 454
- Main Cap Fasteners Included:
- No
- Main Cap Retention Style:
- Bolt
- Main Cap Material:
- Steel
- Machine Work Required:
- Yes
- Quantity:
- Sold as a set of 4.
- Make:
- Chevrolet
- Engine Family:
- Chevy big block Mark IV
- Years:
- 1966-1990