Engines and Components Cylinder Heads and Components

Manley Performance

Manley Chevrolet Small Block Exhaust Valve Kit - 1.560in Head Dia. 4.911in O/A Length, 0.3415in Stem

$469.54

SKU: M004 11501-8

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Manley Performance 11501-8 is a set of eight stainless steel engine exhaust valves. These valves feature a 1.560-inch dish-shaped head, a 11/32-inch stem diameter, and are constructed from XH-426 material. They have an installed height of stock and an overall length of 4.911 inches, with a valve seat width of 0.100 inches.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandManley Performance
Part NumberM004 11501-8

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy