This is a better HG to go with : http://www.ebay.com/itm/051-MLS-High-Per...=item2c82fbb0b2

You can have them in different thicknesses.
These are the best for boosted & high compression engines.
Reusable also.

You need to have your block & head surfaced for the correct Ra number for it to seal correctly.

MBHD


12 port SDS EFI