Originally Posted by
Clegg
The CRC Aluminum ones are the same specs as the Ti ones. The screws only seat on the very edges of the head due to their more agressive head angle. Look at a comparison pic below, and the damage they did to the 4 cell chassis I just retired. This caused me some serious headacges as the front end would move on minor wall taps and tweak the car badly.
Those are 100 degree heads. Similar to the AE bulkhead screws for the B4 and T4