grinchsr 650 #1 Posted September 2, 2014 (edited) I just picked up a 1998 312-8 with the CH motor with 407 hours on it and was looking for opinions from the experts. What can I expect from this motor? Also what was the first year for the aluminum block? Edited September 2, 2014 by grinchsr Share this post Link to post Share on other sites
Fordiesel69 271 #2 Posted September 2, 2014 If kohler command / command pro, and the maint is kept up, it will last a long time. Even longer than a K series if the maint is kept up. It will not tolerate lack of oil changes, or being run low. Should the engine get worn, and blow a rod, the engine is disposable unfortunately. Even when worn and caught early, the parts are expensive. Share this post Link to post Share on other sites
grinchsr 650 #3 Posted September 3, 2014 THANKS for getting back to me Share this post Link to post Share on other sites
Racinbob 12,204 #4 Posted September 3, 2014 The Command is a good motor. I'm happy with the CH-15 on my 2005. Like Fordiesel said, they will last a long time with proper maintenance. I believe 98 was the first year they used them. Share this post Link to post Share on other sites
