2.2 3R case for 87.5 P&C's ?

[82 sportsc]

Building slightly more than 2.5 ....
saw comments that 3R case should not go behind 86?
Should I have any concerns ?
Thanks
Frank

[Trackrash]

I run 90mm barrels on my '71 case. No problems for the past 30 years. Of course I had to have my case and heads machined for the cylinders.

[Steve@Rennsport]

Originally Posted by 82 sportsc

Building slightly more than 2.5 ....
saw comments that 3R case should not go behind 86?
Should I have any concerns ?
Thanks
Frank

Not a problem unless the engine will be living beyond 7K RPM.

[82 sportsc]

Thanks guys......not going to live above 7k .
Feel save now.
Frank