Description
Manley packages these Extreme Duty exhaust valves for Small Block Chevrolet 1.600 Diameter .300 Longer around the measurements that matter during cylinder-head setup, rather than treating every valve size as a separate shopping path. Use the exact Manley part number shown below to distinguish this product from similar valves offered for the same or related engine family.
For Small Block Chevrolet 1.600 Diameter .300 Longer, valve diameter changes can alter seat work and chamber/shrouding relationships, while alternate overall lengths can change installed height and rocker geometry.
Key Product Details
- Application: Small Block Chevrolet 1.600 Diameter .300 Longer
- Manley Series: Extreme Duty
- Valve Position: Exhaust
- Manufacturer Part Number: 11709-8
Package Quantity
Set of 8 valves. The selected configuration is supplied as a 8-piece valve package. This quantity applies to the selected Manley SKU family shown on this product page.
Selection & Fitment Notes
Confirm head diameter, overall length, stem diameter, keeper/groove style, seat compatibility, and installed-height requirements with your cylinder-head specification before ordering.
Professional engine assembly and measurement are recommended. Product specifications should be confirmed against the selected Manley part number and the requirements of the exact engine build.