This Chevrolet Performance valve cover bolt fastens center-bolt style valve covers to Small Block Chevy cylinder heads. It is a hex-head steel bolt with a black oxide finish and an included washer, and is sold individually.
Specifications:
- Type: Valve cover fastener (bolt)
- Thread: 1/4-20 in
- Length: 3.625 in
- Head: Hex head
- Washer: Included
- Material: Steel
- Finish: Black oxide
- Fitment: Small Block Chevy center-bolt valve covers
- Quantity: Sold each
- Part Number: 10066008
Applications:
- Small Block Chevy (center-bolt valve covers)
FAQ
What valve covers does bolt 10066008 fit?
Part 10066008 fits Small Block Chevy center-bolt style valve covers, where the fastener passes through the center of the cover.
What size is the bolt?
It has a 1/4-20 in thread and measures 3.625 in long with a hex head.
Does the bolt come with a washer?
Yes, a washer is included with the bolt.
Is this sold as a set?
Part 10066008 is sold each. A center-bolt valve cover uses four fasteners, so quantity should be ordered to suit the application.
What is the bolt made of?
It is steel with a black oxide finish.

