APPLICATION:: 2JZGTE engine with 1/2" (.500") clearance through-holes for 1/2" diameter head studs (all). Standard bore, .020", 040" (86.0, 86.5, 87.0 bores). 2JZGE (non-turbo) ALL. Standard bore, .020", .040" (86, 86.5, 87.0mm bores)

We have done it again! Be careful as competitors may use a different gasket and they machine their gasket with a drill or drill press. Titan CNC machines the gaskets so they are able to control the cutter speed and make a precision enlargement for the ½” head stud holes. This is done with a special bit to enlarge the opening of the gasket and create the stud holes within .001” tolerance.

This is done as the head gasket is a critical engine component. If you drill it with a drill press, then you will have a gasket with built up risers in the gasket. When the head seals to the block, it actually rests on those risers. If you then get into boost with the engine operational with that setup, you risk blowing the head gasket. These head gaskets have been tested beyond 2000 HP and work fantastic; most race teams use this gasket for this reason. This is the same process and gasket that was used to win championships in 2002, 2004, 2005, 2006, and 2007 with TMS drag vehicles.

You surely can make the gasket cheaper, you can even drill it yourself, but that doesn’t make it right or perfect.

We know this because this has been tested at great length in 2002 with many head gasket issues from drill press manufacturing, and hence why Titan came up with the solution we use today.