The 64x cylinder is much stronger than the 61x that is stock for a waveblaster 1, so you really don't meed a girdled head, unless you are going with really high compression. So, you might consider just having the stock head modded. Or try to pick up a used aftermarket head. Another alternative is to buy a girdled head, but without the girdle kit. I ran a 760 with a blowsion one piece head, and no girdle bolts, and it worked well. With the 760 cylinder you actually have to do some clearenceing if you want to run the girdle bolts/studs. The big advantage to running an head from Blowsion or ADA is that they have interchangeable domes. So, if you go to a different altitude, you can adjust your compression, or if you loose a piston, you replace the dome, not the whole head. Just some thing to think about...
