Kohler cast iron K-series engine blocks & crankshafts - $50 (Sherman)

Kohler cast iron K-series engine blocks & crankshafts 1

Kohler cast iron K-series engine blocks & crankshafts 1 thumbnail

make / manufacturer: Kohler

model name / number: K241, K301, K321

delivery available

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I have three Kohler K-series engine blocks available. One each K241, K301, and K321. I don't have a real accurate bore gauge, but from what I could measure, the K241 block appears to have minimal cylinder wear (a couple thousandths or so) and may still work with a standard size piston after some light honing to clean up the bore (they all have some light surface rust from sitting). The K301 block has a bit more wear (around 9 or 10 thousandths at the worst spot) so it will likely need to be bored for a 0.020" oversize piston. The K321 block seems to have already been bored 0.030" over and has 5 thousands or so of wear over that. I don't know if this one will clean up at 0.040" over or if it will need a sleeve. Some of these blocks have some bolts broken off in the holes next to the exhaust port ... $50 each for the K241 & K301 blocks. $40 for the K321 block.

I also have three crankshafts available. They all have short 1" diameter output shafts for use with Lovejoy couplers in Case / Ingersoll garden tractors. Two of these crankshafts are out of K301 engines and I belive they will also fit K321's as well (same 3.250" stroke). The rod journals on these K301 cranks are standard size but have some wear and will need to be ground 0.010" or possibly 0.020" undersize. One of them also has a broken flywheel retainer "stud" that will need to be drilled & tapped for a bolt. The third crankshaft is out of a K241 and has had the rod journal ground 0.020" under so it is ready for use with a new 20 under connecting rod ... $50 each for the two with intact flywheel retainer "studs". $40 for the one with the broken "stud".

The blocks & crankshafts are available for cash payment and local pickup in Sherman. Or I can accept PayPal or postal money order and mail them to a buyer willing to cover the shipping (note that shipping on the blocks will likely be expensive due to their weight).

post id: 7933472514

posted: 2026-05-10 19:44

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