AFR's Mongoose Street cylinder heads are fully assembled, aluminum GM LS-Series heads built with 230cc intake runners and 72cc combustion chambers. They use an angle-plug design with 2.080in intake and 1.600in exhaust valves, and ship as a matched pair ready to bolt on.
Specifications:
- Type: LSx Mongoose Street
- Condition: Assembled
- Intake Valve: 2.080 in
- Exhaust Valve: 1.600 in
- Intake Runner Volume: 230 cc
- Combustion Chamber Volume: 72 cc
- Spring Diameter: 1.270 in
- Spark Plug Style: Angle Plug
- Material: Aluminum
- Quantity: Pair
- Part Number: 1630
Applications:
- GM LS-Series
FAQ
What engine platform does this cylinder head fit?
It's built for the GM LS-Series platform.
Is this head assembled or bare?
It ships fully assembled, ready to install.
What size are the intake and exhaust valves?
2.080 in intake and 1.600 in exhaust valves.
What spark plug style does it use?
An angle-plug design.
How many heads come in this listing?
It's sold as a matched pair.

