Heymow - Lawnmower Racing Forum

Engine Help => Kohler Engines => Topic started by: Mowerstompin on November 12, 2013, 01:14:47 pm

Title: Rod and Piston Question
Post by: Mowerstompin on November 12, 2013, 01:14:47 pm
Ive been looking at midwest and theres two diamond pistons. 3.425 with 1.142 pin location that used stock rod. I have no idea what stock rod length is. Other is 3.425 with a 0.750 pin location. So what rod would I use? Ive been thinking about using a 87mm je piston but once again no clue what rod to use. Anyone know some piston/rod combos? Anyone used a je piston?

I want a longer stroke rod with a shorter piston.

Any help would be awesome, winters coming and the time to break down the 15 kohler single and build it will begin.

Anyways, thanks!
Cody
Title: Re: Rod and Piston Question
Post by: valleeracing on November 12, 2013, 02:34:37 pm
Run the long rod with short 750 piston, just call midwest they will set you up same combo i am running
Title: Re: Rod and Piston Question
Post by: Mowerstompin on November 13, 2013, 02:46:16 pm
Alrighty, I'll see what I can do. Whats stock rod length by the way?
Title: Re: Rod and Piston Question
Post by: Cromwell C4 on November 14, 2013, 11:07:46 am
The cv460 and the cv490-493 have different strokes, and mwsc makes rods for both of the cranks. Get the long rod/piston combo that matches your engines crank. You will want a cv490-493 block and crank to get the maximum CI. The cv460 blocks have a shorter jug length so you can't just put in the longer stroke crank.
Title: Re: Rod and Piston Question
Post by: Mowerstompin on November 20, 2013, 12:09:36 am
Heres another question. Does midwest have different valves for the single commands, or is there a place I could get stainless steel valves from in place of these stock ones?

Thanks!