Richmond Engines ( http://www.richmondengines.com ) just finished my K motor, the stock Rods were mismatched but in decent overall shape, so I kept them but decided not to run them, went with a eagle I-beam rod and Mahle pistons, about 300 grams lighter then stock per hole...
The heads had been worked in the 70's when the engine was last rebuilt, but they had done a pretty bad job by todays standards. Fortunately the guys at Richmond Engines were able to fix most of the damage.
For the cam we went with Comp Cams nostalgic K-Code grind, lunati solid lifters with offset oil hole, true roller rockers for heat reduction, and for now, until I can get the stock distributor looked at, I am running a MSD ready to run, distributor. The stock dist with pertronix made 260hp peak, plotting the graphs over each other, pertronix starts to die around 5000rpm.
The motor makes peak power at over 6000 rpm but has a nice flat torque band from about 3500 rpm and up... ( approx 300ftlbs )
At the sacrifice of some power, we elected to go 9.5:1 compression due to the poor quality of gasoline these days... had we run some dome top pistons at around 11:1 it would have been a beast...
Peak power was 330hp in the 6000-6400rpm range...
The K-code autolite 4100 made 318HP, and a new holley 600 made 330HP, we are sending CFM/AF ratio charts to a holley shop to rebuild my 66 shelby 715 holley for the car...
If anyone wants to know more, shoot me a message, I will post some video/audio once the engine is in the car with the somewhat incorrect Arvinode exhaust...
