Thread: Got the rotating assembly / Now what heads?

Tweet

Originally posted by dcoffield
Does anyone have a compression calculator that can tell me what compression I'll get on this?

Flat top pistons
383 ci
67cc heads

I just found some World S/R Torquer heads a little cheaper than the Dart. (67cc / 170cc runner / 2.02/1.6 valves / .550 springs / straight plugs / 3/8 studs).
$599 plus $70 shipping for the World heads
$639 plus $70 shipping for the Dart

Any thoughts on which is better or does it matter?

The Dart are better. The Torquers are behind times. They were the pioneer when cast aftermarket heads came out but Dart has redone the combustion chambers intake runners to produce better swirl which promote hp and torque. The Darts outflow the torqers also throughout the lift range.

As for as caculating compression, I did your homework for you lol I looked up the part no. Those show 10:4 with 64cc head. It's not going to drop down but to 10.2:1 with those 67cc heads but I do believe dart offers them heads in 72cc that will be much more streetable.