I can honestly say these motors are nothing less than superb!!
Ive been running a 6.5 in 2wd and 5.5 in 4wd.
I made the A final on both days at Talywain National this weekend. The cars were as quick, if not quicker down the straight as any other car in the A-main
.
Had no issues with reliability at all.
You really can't go wrong buying one of these motors.
Craig