Small Block 4 BBL Marine Carburetor | Chrysler 4142116-E Replacement 600 CFM marine carburetor for Chrysler LM318, M340, and M360 marine engines with 4 barrel Carter AFB carburetors. Replaces mechanical choke Carter carburetors used on Chrysler small block engines up to 1985 Electric choke 5 in. throat diameter 600 CFM - stock calibrated for Chrysler small block marine engines USCG approved Replaces Chrysler 3527767, 4142116