Achto 27,601 #26 Posted March 17, 2022 Just now, 953 nut said: The 241AS is what we call a small block I have seen 241's with a 301 casting on the block behind the fly wheel. K241, K301, K321 all share the same cylinder head. Share this post Link to post Share on other sites
953 nut 55,298 #27 Posted March 17, 2022 1 minute ago, Achto said: I have seen 241's with a 301 casting on the block behind the fly wheel. K241, K301, K321 all share the same cylinder head. Yes, on the big block but the small block that was used on the 1045 and 1055 is a totally different block and pan. Both of these are K-241 but the small block is K-241 AS. Piston rod crank cam are all the same, oil pan isn't. 1 1 1 Share this post Link to post Share on other sites
Achto 27,601 #28 Posted March 17, 2022 Thanks @953 nut!! Got my schooling for the day. More info to put in my memory bank. 1 1 Share this post Link to post Share on other sites
857lover 291 #29 Posted March 17, 2022 31 minutes ago, 953 nut said: The 241AS is what we call a small block, pan from it will not fit a BIG Block. Your best bet is to build a taller hood hinge and steering tower. Your best it won’t fit on a 301 ?? Share this post Link to post Share on other sites
Lee1977 6,664 #30 Posted March 17, 2022 (edited) If you have a wide base Kohler you can't just bolt on a narrow base the block is different, Go to engines there is a tread at the top by Kelley on Kohler engine types. It show the different types. Edited March 17, 2022 by Lee1977 1 Share this post Link to post Share on other sites
953 nut 55,298 #31 Posted March 17, 2022 1 minute ago, 857lover said: it won’t fit on a 301 ?? NOPE. You could raise the hood up or put a cool looking hood scoop over the engine. The short oil pan @daveoman1966 showed you is for the small block. Share this post Link to post Share on other sites
kpinnc 12,083 #32 Posted March 18, 2022 This is confusing. Small blocks were at least in my world K141, 161, and 181. Big block was anything K241 and above. The base being different is the only difference with the "AS" and similar models. Everything internal is the same as with the "S" or any other product line for the same series. John Deere and Cub were common users of that style block and oil pan. I still think that is a big block configuration. Maybe small oil pan, or small mounting area, but I think it's still a big block. Just my opinion... 1 1 Share this post Link to post Share on other sites
pfrederi 17,741 #33 Posted March 18, 2022 10 hours ago, kpinnc said: This is confusing. Small blocks were at least in my world K141, 161, and 181. Big block was anything K241 and above. The base being different is the only difference with the "AS" and similar models. Everything internal is the same as with the "S" or any other product line for the same series. John Deere and Cub were common users of that style block and oil pan. I still think that is a big block configuration. Maybe small oil pan, or small mounting area, but I think it's still a big block. Just my opinion... A big block...(K241 up to K341) may be a big base or a small base. Oil pans are not interchangeable... 3 1 Share this post Link to post Share on other sites
ebinmaine 67,592 #34 Posted March 18, 2022 7 minutes ago, pfrederi said: A big block...(K241 up to K341) may be a big base or a small base. Oil pans are not interchangeable... Interesting information. I knew there was a smaller oil pan back then but never knew that they were not interchangeable with one another.... 1 1 Share this post Link to post Share on other sites
pfrederi 17,741 #35 Posted March 18, 2022 It is however possible to fit a small base oil pan to a big base block...Did it 14 years ago. I used a small base cradle (shaker mount) oil pan and married it to a big base Magnum 12. I would "assume" the shallow pans mentioned above would have the same bolt pattern If the pan doesn't have the under mount holes maybe a J bolt hook up for that side??? 2 1 Share this post Link to post Share on other sites
WHX?? 48,828 #36 Posted March 18, 2022 14 hours ago, 953 nut said: used on the 1045 and 1055 is a totally different block and pan. Run that by me again Richard I had thought that blocks & internals on a1045/55 were the same as any 241 in a long frame, except for the dipper and non ACR cam, just a different pan. Share this post Link to post Share on other sites
pfrederi 17,741 #37 Posted March 18, 2022 This gets confusing. 1055/1075 used Spec # 46219 (if the chart is correct) It had Oil Pan variant 19 which is a shallow pan drain on carb end. (B2 in picture.) 236265 however 1057/1077 used spec # 46333 (if chart is correct) it had oil pan variant 25 which is deeper pan (B1) 237763 Connecting rods 1055/75 used 235383 1057/1077 used 235139 1 1 Share this post Link to post Share on other sites
WHX?? 48,828 #38 Posted March 18, 2022 (edited) I guess I just needed to go reread that pinned thread in engines. Now if I could just remember it! Edited March 19, 2022 by WHX?? Share this post Link to post Share on other sites
Shynon 7,459 #39 Posted March 18, 2022 15 hours ago, 953 nut said: Yes, on the big block but the small block that was used on the 1045 and 1055 is a totally different block and pan. Both of these are K-241 but the small block is K-241 AS. Piston rod crank cam are all the same, oil pan isn't. The bearing plate,flywheel shroud and generator belt gaurd are also different on the 1045,55,75 and 1046 4 Share this post Link to post Share on other sites
ebinmaine 67,592 #40 Posted March 18, 2022 1 hour ago, pfrederi said: This gets confusing. 1055/1075 used Spec # 46219 (if the chart is correct) It had Oil Pan variant 19 which is a shallow pan drain on carb end. (B2 in picture.) 236265 however 1057/1077 used spec # 46333 (if chart is correct) it had oil pan variant 25 which is deeper pan (B1) 237763 Connecting rods 1055/75 used 235383 1057/1077 used 235139 1967 was the first year for the long frame with tall hood. Not at all surprising that the 10 HP engine changed as well. 1 1 Share this post Link to post Share on other sites
953 nut 55,298 #41 Posted March 18, 2022 20 hours ago, kpinnc said: This is confusing. Small blocks were at least in my world K141, 161, and 181. Big block was anything K241 and above. The base being different is the only difference with the "AS" and similar models. Everything internal is the same as with the "S" or any other product line for the same series. John Deere and Cub were common users of that style block and oil pan. I still think that is a big block configuration. Maybe small oil pan, or small mounting area, but I think it's still a big block. Just my opinion... My bad, should have said Small Pan and Big Pan. Share this post Link to post Share on other sites
kpinnc 12,083 #42 Posted March 19, 2022 3 hours ago, 953 nut said: My bad, should have said Small Pan and Big Pan. No that was my bad. 3 speed, 4 speed, 6 speed, 8 speed, small block, big block. Long frame, short frame... It's alot to keep up with and far more important that we are just here enjoying these tractors. I think it's perfectly fine to go with things as we've become accustomed to. Everybody does it, and I'm no different. 2 1 Share this post Link to post Share on other sites
953 nut 55,298 #43 Posted March 19, 2022 8 hours ago, kpinnc said: far more important that we are just here enjoying these tractors. 2 Share this post Link to post Share on other sites
wallfish 17,011 #44 Posted March 19, 2022 10 hours ago, kpinnc said: I think it's perfectly fine to go with things as we've become accustomed to. Everybody does it, and I'm no different. Engine vs Motor LoL We're all guilty one way or another! 2 1 Share this post Link to post Share on other sites
ebinmaine 67,592 #45 Posted March 19, 2022 13 minutes ago, wallfish said: Engine vs Motor LoL We're all guilty one way or another! Every time I say the "M" word to describe an ENGINE I self discipline. 😀 Share this post Link to post Share on other sites
WHX?? 48,828 #46 Posted March 19, 2022 22 hours ago, ebinmaine said: 1967 was the first Someone say '67? 4 Share this post Link to post Share on other sites
pfrederi 17,741 #47 Posted March 19, 2022 Using one of WHX?? pics you can see the difference in the oil pan when a big block is used on a long frame 1257 vs a short frame 1075 3 Share this post Link to post Share on other sites
kpinnc 12,083 #48 Posted March 19, 2022 (edited) So I'm tracking here- the shorter pan has the little oil dipper "trough" cast into it. Does it fit between the frame rails? 2 hours ago, pfrederi said: Using one of WHX?? pics you can see the difference in the oil pan Until this thread I never thought that style Kohler block and pan was of use to me. I see plenty of these engines for sale and tend to stay away from them. Thanks to all for clearing that up! I might have to pick one up for the heck of it... Edited March 19, 2022 by kpinnc 1 Share this post Link to post Share on other sites
littleredrider 409 #49 Posted March 19, 2022 I have a 16 horse on my 606 with a shallow pan from a JD. Pan itself bolted up fine, but needed to drill holes in the frame. Not a huge deal tho. This is also isn't a genny style motor, but regular points/bolt on starter. I trimmed the oil slinger, easy to do. Brian millers page shows how to swap pans as Pfrederi did.... 1 Share this post Link to post Share on other sites
JoeM 7,874 #50 Posted March 19, 2022 (edited) 8 hours ago, ebinmaine said: Every time I say the "M" word to describe an ENGINE why do they call it "Motor Oil"? Dag gon it EB I had to do it. Referenced MIT School of Engineering, this is part of what I found. (You can stop correcting yourself I think) The Oxford English Dictionary defines “motor” as a machine that supplies motive power for a vehicle or other device with moving parts. Similarly, it tells us that an engine is a machine with moving parts that converts power into motion. “We use the words interchangeably now,” says Fuller. “But originally, they meant very different things.” “Motor” is rooted in the Classical Latin movere, “to move.” It first referred to propulsive force, and later, to the person or device that moved something or caused movement. “As the word came through French into English, it was used in the sense of ‘initiator,’” says Fuller. “A person could be the motor of a plot or a political organization.” By the end of the 19th century, the Second Industrial Revolution had dotted the landscape with steel mills and factories, steamships and railways, and a new word was needed for the mechanisms that powered them. Rooted in the concept of motion, “motor” was the logical choice, and by 1899, it had entered the vernacular as the word for Duryea and Olds’ newfangled horseless carriages. “Engine” is from the Latin ingenium: character, mental powers, talent, intellect, or cleverness. In its journey through French and into English, the word came to mean ingenuity, contrivance, and trick or malice. “In the 15th century, it also referred to a physical device: an instrument of torture, an apparatus for catching game, a net, trap, or decoy,” says Fuller. In the early 19th century, the meanings of motor and engine had already begun to converge, both referring to a mechanism providing propulsive force. Edited March 19, 2022 by JoeM 2 3 Share this post Link to post Share on other sites