I'm extremely excited to start doing some things to my 6.1 Hemi, in my Road Runner. First off is CNC porting to the heads & new cam. Jeff at Modern told me his CNC program & using stock valves can support 800hp. Not too bad for a factory casting! I'm going to leave the short block alone for now, so what ever it makes, it makes.

On a side note Bob, the stock 6.1 piston can't really handle too much power adder. I had thoughts of putting a 100-125 shot plate system on mine & the killer is, the top ring on the 6.1 SRT8 piston is only .12" from the top of the piston........too close for comfort.