Sleds are back in summer storage. Oh well.  Snow is mostly gone but we at least saw a few piles of snow as we drove through the Adirondacks.  The largest and most impressive pile was at the base of the ski jump hill in Lake Placid.

looking for the square block motors. looking mostly for cylinders, dont need to be in that great of condition.

I will say the trailing arms should be round and not square or oval shape. You can make a pretty stiff round trailing arms out of chromoly that will look factory the Kawasaki spindles the factory looks a little on the weak side that’s where I would use something like the 79’ ski doo ifs Sno pros have you can buy that stuff from Margo race chassis shop they are in Wisconsin. As for the suspension & track that’s on you close to original but in rubber racing track is a 15x106 soucy track with a Wahl brothers 106” suspension skid now add the lube kit with it. If you need a gas tank or a lube tank made out of aluminum reach out. I’d buy the ski blank material or buy the narrow skis from Wahl brothers. If have to ask yourself how close to factory you want to build. It’s like the handle bars to I made it so you can take off the wrecked bars and put on new ones. Once you decide what is most important to you then build it. Hopefully I don’t come off wrong but I mean well for anyone that wants to build whatever they want and not get discouraged from people that are so stuck on themselves saying they are the only ones. Keep us posted

the information you packed into those two short posts was incredible, thankyou Sprocket! i messaged back and forth with Al and got a gist of what he was all about, maybe it was the disconnect caused by digital messaging, but he seemed to take offense to the idea that i wanted to make something that he had already made, either way, he was very knowledgeable and i respect his work a ton. He also heavily informed me that all of his chassis are perfectly legal and run at eagle river just fine... i don't know where the confusion on that is coming from, but that is neither here nor there. from what you were mentioning about trailing arm suspension, im a bit confused. From my research there isn't anything within the isr rules that prohibits that type of suspension and from researching recent years of people within the classes, there seems to be multiple sled with that style of suspension, i am probably missing something but i cant figure out what it is lol. I want to race in either "IFS sno-pro" or "IFS sno-pro X" just matters which one i can fit. as for motor, both of those classes allow for any motor, they are basically just cc limited, however, the coolness of this project imo comes from the "Kawasaki" name, thus i will be developing and building some 8 port motors for the sleds (if i can find some more cylinders) I recently designed and built a motor dyno, so this summer will be filled with testing and development on those motors, aiming for 115hp at-least, we will see what happens. From some people that ive talked to, i got some images of the original cylinders and some measurements too, they were 8 port and the crankcases look very interesting, a bit different the t7s i thought, but it might have been perspective. So far i have 7 or so different objects on the sleds, that i know the exact dimensions of. With these, i can calculate the distance away from the snowmobile that the picture was taken and use that measurement to figure out the dimensions of most other things within the pictures. what ive been looking for the most is a picture that includes the front of the hood and the tunnel all in one, with that i can pull a ton of measurements from the hood and start that design process. My goal is to create some blueprints that are to the exact dimensions of the sled, so that i can modify the chassis to my liking, modernization and safety, that fit within the rules based off of the "original" dimensions. in your opinion Sprocket, would you put the gas tank at the front of the sled or the middle? i was thinking middle for weight distribution and impact safety. thankyou again for all of your help ive been learning a ton over the last week or so.

If ISR would allow you to run any Kawasaki engine that would be great as long as it fits the rules you should be ok. In IFSX class you can run any engine only that class though. I know for a fact these sleds will not fit in a super stock class or a stock class only a mod or ifs, IFSX class