A .990 pin is nice cause it's Big Block Chevy size, inexpensive.The 302 I built had the larger pins,1.090 I believe.I had the rods rebushed down to .990 and that little job cost me over 200 bucks to have custom bushings made.
I made an error;the 261 piston compression height is 2.029 not the 235 height of 2.062.I did measure a NOS 261 piston.

70 Triumph 650 cc ECTA current record holder