MerCruiser 220-2282 GM 6270046N Flywheel 1963-1978 120hp 140hp 2.5L 3.0L 110hp 80hp It's basically a Type 3600

It's basically a Type 3600 Type Control as it has 10-32 on both ends and the other end had some removable hardware that would make it work for either MerCruiser / Mercury Outboard Applications

Thread Length: 2 1/4"

(this is for the standard and most common size bow rail)

Generally the best practice is to just match your existing cylinder heads cast number

Includes Mounting Plate 910631 / 0910631 - May not be applicable to ford engines

MerCruiser 220-2282 GM 6270046N Flywheel 1963-1978 120hp 140hp 2.5L 3.0L 110hp 80hp It's basically a Type 3600Part Number(s) Included MerCruiser 220 2282 Crankshaft Flywheel GM 6270046N 6270045 (which sometimes looks like 6270048N) General Application Compatibility GM 4cyl 2 PIECE REAR MAIN SEAL ENGINES GM 110hp 4cyl 2. 5L 153cid 1963 1966 GM 120hp 4cyl 2. 5L 153cid 1964 1978 GM 140hp 4cyl 3. 0L 181cid 1968 1978 This is a bit thicker than flywheels found on later MerCruiser 4cyl engines (see other listings for the later versions) 12 3 4" Diameter 153 Tooth 3.