The heads finally arrived from Slide Performance! UPS really messed with me on this one..




These are the AA-500 series heads with 35,5 - 32 mm SS valves. I've had them flycut for my thickwall 92s and CCd to 48cc. The have also been given a valvejob. I've yet to disassemble the heads and inspect the seats.. They came with CB-performance HD Single springs, chromoly retainers and keepers. I will however use Oteva 75SC Single springs from Logmech and Titanium retainers.
What these need are blending under the seats and some unshrouding around the valves in the chambers.
I'll also have the valves ground to make sure they're perfectly round and i'll also have the intake valves back-cut.


In other news, the tachometer bracket has entered prototyping.
