Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Manley Extreme Duty Series Valves
Valves, Exhaust, Extreme Duty Series, Stainless, 1.590 in. Diameter, 0.314 in. Stem, Chevy, 6.2L, Set of 8
See More Specifications
|
Check the Fit
Estimated Ship Date: Nov 10, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11685-8
Part Type:
Product Line:
Summit Racing Part Number:
MAN-11685-8
Item Number:
1796048
UPC:
807298051123
Valve Position:
Exhaust
Exhaust Valve Head Diameter (in.):
1.590 in.
Exhaust Valve Head Diameter (mm):
40.386mm
Exhaust Valve Stem Diameter (in.):
0.314 in.
Exhaust Valve Stem Diameter (mm):
7.97mm
Exhaust Overall Valve Length (in.):
4.923 in.
Exhaust Overall Valve Length (mm):
125.044mm
Undercut Stem:
Yes
Swirl-Polished:
Yes
Valve Tip Length (in.):
0.160 in.
Valve Tip Length (mm):
4.064mm
Valve Material:
XH-432 Xtreme alloy
Lock Groove Quantity:
1-groove
Lock Groove Style:
Conventional
Approximate Weight (g):
94
Valve Head Style:
18 degree dish
Valve Seat Width (in.):
0.115 in.
Quantity:
Sold as a set of 8.
Manley Extreme Duty Series Valves
Manley Extreme Duty Series performance valves are a great choice for supercharged, alcohol-burning, or high-revving engines. These engines generate a lot of heat and require special valves that can handle that kind of punishment. All valves are made from the best materials available, with chrome stems and hardened valve tips. Extreme Duty Series valves are swirl-polished and fully machined and available with either undercut heads or straight stems.
Applications
Loading...
Loading...
Questions & Answers
Ask a Question
What type of question would you like to submit?
I have a Customer Service question
(order, shipping, returns, protection plans, etc.). Customer Service Question
(order, shipping, returns, protection plans, etc.). Customer Service Question
- OR -
I would like to ask other customers
a question about this Product. Product Related Question
a question about this Product. Product Related Question
Loading...
Reviews Write a Review
Some parts are not legal for use in California or other states with similar laws / regulations
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Email this page
