Overview

The K&N 60-1340 air cleaner assembly is designed to fit vintage multi-carburetor setups utilizing specific small-neck carburetors.

Vehicle & Carburetor Fitment

The primary carburetor series and part names/numbers associated with this specific 3-1/16-inch flange size include:

• Single Carburetors: Single 1-barrel (3-1/16 in. diameter) and Single 2-barrel (3-1/16 in. diameter).
• Rochester 2-Jet (2GC / 2G) "Tri-Power" Carburetors: Used primarily on classic 1959–1965 Pontiac V8 engines (389, 400, 421, and 428 CID) equipped with factory GM Tri-Power setups (three 2-barrel carburetors running in tandem). These early-to-mid 1960s Rochester 2-Jet carburetors featured a smaller 3-1/16" (approx. 3.063") air horn/neck diameter.

Important Fitment Notes

• Fits: 1959–1965 Rochester 2-barrel Tri-Power setups requiring a 3-1/16-inch opening.
• Does NOT typically fit: 1966 Pontiac Tri-Power setups out of the box (which frequently switched to a slightly different 3-inch neck size or required dedicated fitments).
• Pro Tip: Because vintage multi-carb setups are frequently mixed-and-matched with aftermarket intakes or modified over the decades, always measure the outer diameter (OD) of your carburetor's air horn to confirm it matches the 3.0625" (3-1/16") flange requirement before purchasing.

Specifications

• Base Style: Raised (Raised Distance: 0.563 in.)
• Air Cleaner Shape: Round (5 1/4 in. diameter)
• Top Material: Chrome Steel
• Filter Element: Red cotton gauze (Filter Height: 2.000 in.)
• Height Dimensions: Net Height from Carb Flange: 2.625 in.
• Nut Included: No
• Package Dimensions: 8 in. (L) × 8 in. (W) × 4 in. (H) / 200 mm × 200 mm × 102 mm