This 14" air cleaner kit uses a flat, spun aluminum base and matching plain lid instead of a dropped profile, which increases airflow into the carburetor. It comes with a 1/2" spacer that has a built-in O-ring for a positive seal.
The flat base design is popular in crate engine classes where every bit of horsepower is worth chasing. A filter element is not included and needs to be sourced separately based on the class rules or driving conditions.
Spec Sheet: Allstar Spec Sheet
Compatibility
This is a universal-fit air cleaner kit, not vehicle-specific. It is sized for carburetors with a 5-1/8" neck and is not matched to a particular make or model.
FAQ
What carburetor neck size does this fit?
This fits a 5-1/8" carburetor neck, sealed by the integrated O-ring on the included spacer.
Does this kit include a filter element?
No, elements are sold separately for this kit.
Why choose a flat base over a dropped base kit?
The flat, spun aluminum base increases airflow versus a dropped design, which is why it shows up often in crate engine classes.
Is this a universal fit or vehicle-specific?
This is a universal fit. It is sized to the carburetor neck, not to a specific make or model.

