Engines and Components› Camshafts and Valvetrain
Manley Performance
Manley Acura 1.6L B16A1 Exhaust Valve Kit - 28.50mm Head Dia. 102.70mm O/A Length, 0.2150in Stem
SKU: M004 11693-8
Advanced — 4+ hours
Description
Constructed from stainless steel, this valve is suitable for racing engines operating below 8000 rpm. It has a 5.46mm stem diameter and a 25-degree seat angle with 11/32" locks.
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 11693-8 |
Videos
Manley Performance Factory Tour - Pistons, Connecting Rods, Valvetrain Manufacturing | RS Garage
Flowmaster VS Borla VS Magnaflow Explained
Tech Tip: Straight-Through Mufflers vs. Laminar Flow Mufflers
No Exhaust Valves were harmed in the making of this video
Valve Springs: How to Choose, Set Up & Install Them Right (For Your BUILD!)
How to Install Valves & Springs on a LS 799 GM Cylinder Head with Michigan Motorsports
MORE POWER WITH SMALLER EXHAUST VALVES?
This Camaro Exhaust Shouldn’t Have Made 30+ WHP: LS3 Stepped Pipe Layout Everyone Will Copy
I CRACKED THE CODE and built the best sounding exhaust
Exhaust Back Pressure Myth DEBUNKED!
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