Install an L67 (Supercharged 3800) engine in a 1999 Buick Regal quite nicely and it will stay in the grooves without the need for sealant (the factory service manual says that these seals should be installed DRY ). ). Bought and installed a few months ago, no leaks yet. Fel-Pro pads are the best and that's about all I'll be installing. Don't forget the blue angle for the rocker cover bolts, which are torqued to about 89 in-lbs (you probably won't be able to get a torque wrench for the rear…