mopar1rules
Active member
I am just curious what others are running for jetting on their vipers with the speedwerx head. I didn't get much info from contacting speedwerx. Hauck says to have the mag side one size richer when running their aaen pipes, because that cylinder is the hot one when pipes are added. they are talking of course when you have the stock head and their super cool head gasket. the stock head also has the pto head dome cut, so it has less comp than the center and mag cylinder. the speedwerx head that I have, has the same compression on all three and the head cools better than stock, so I wonder if I can jet all 3 cylinders the same for mains? The speedwerx head doesn't use the super cool head gasket like the stock head. It uses the rubber o-rings like the srx heads. I wonder if not using a super cool head gasket will change anything?