Engines and Components› Camshafts and Valvetrain
Manley Performance
Manley VALVE-R/F 2.020 .100 .3133 STEM EA
SKU: M004 12302-1
Advanced — 4+ hours
Description
This valve is specifically designed for AFR cylinder heads, including various Series Small Block Chevrolet applications such as 180cc, 190cc, 195cc, 210cc, 220cc, 227cc, 235cc, and 245cc models. It is not undercut on the stem and has a tip length of 0.26 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
| Brand | Manley Performance |
| Part Number | M004 12302-1 |
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