I've run my 340s very hard (past ~40 years) during Autocross and hi-speed road course lapping events... 4000-6000-6500-occasional 7000 rpms... for common 30-60-120 seconds of AX/HSAX lap times... road course lapping sessions for ~15-20-30 minutes... engine survives with modified baffles oil pan, diferent past cams from stock hyd to ~484 hyd ..... runs great! Planning a new SB possibly with Eddy alumin heads, maybe a stroker.
Mopar Mitch
"Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers!
Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
