Quote Originally Posted by 76GMC1500
But you have to look at the surface finish on the cylinder walls. Moly rings use a very fine hone grit and there is very little wearing in to be done on the cylinder walls.
The Moly,Plasma moly,Chromium Nitrided,Gas Nitrided,Titanium Nitrided rings will still take much longer to seat compared to a stock style cast ring.
All these listed are a very hard material and will take some time to seat.
In one of our IMCA mod. engines which turns 7,500 + and has over 13 to 1 comp. ratio we have had rings that have taken three or more nights to seat.
This is about like running a drag car half a season.
There are many varibles such as cylinder finish,cross hatch, the type of oil used,additives etc.