01-01-2019, 01:00 AM
(12-31-2018, 09:22 PM)Terry Sullivan Wrote:hi terr(12-30-2018, 07:19 PM)steve cox Wrote: i am assuming that mc-49 and mc 20 have different pin heights
Steve,
All of the engines you mentioned have the same bore.
The 20 has a longer stroke, but I'm not sure about the pin height.
I am in Florida right now, or I would go to the barn and measure a 20 piston.
The 53926 piston you bought from me has the same pin height as the stock 10 piston, so it will work fine.
terry i am not complaining . just a bit confused i have a mc 10 with a 010 thin ring piston 53924 works great the i did a search on the 53924 and it came up with mc-49 and mc 20 i am curious because mc 6,10,49 have pin to crown 1.00 and the mc 20 is 1.06 wondering how they have the same part numbers