BESTgasket
manufactures HIGH-QUALITY gaskets throughout our entire product line, but
here we want to bring special attention to our HEAD GASKETS and REAR MAIN SEALS.
ABOUT OUR HEAD GASKETS
The head gasket is the
most critical of all engine gaskets, and therefore demands much of our
attention. We make two styles of premium-quality head gaskets:
1) Copper (suffix of "C”) – consists of two outer sheets of a generously thick .010" copper and a low-density graphite
“filler” sheet. This high-quality graphite sheet is superior to asbestos, which was used in the old days,
and far superior to the non-asbestos materials found in other maufacturers' modern copper
head gaskets. Excellent torque retention is achieved by using superior materials.
Our copper gaskets are
definitely
“old-school,” but with a modern
flair for better performance. They are such works
of art, we almost hate to sell them!
2) GraphTite™ (suffix of “G”) – consists of Kevlar reinforced
graphite facing material mechanically bonded to both sides of a perforated
steel core. This modern engineered, high-performance material is rated to a
temperature of 1400 degrees-F. Steel
fire rings are installed in the combustion chamber areas of the gasket.
GraphTite™ head gaskets have superb sealing
characteristics, excellent torque retention, and hold up to the punishment dished
out by high-performance engines – high quality all the way. This
gasket might be overkill for cruiser engines, but so what . . extra performance never
hurts!
Install GraphTite™
head gaskets using whatever sealant methods have proven to work well
for you over the years. Some engine builders use a spray-on
sealant like Copper Coat. Others prefer no spray-on sealant, but
use a thin bead of silicone sealant around each water and oil
hole.
Note: For lower volume applications where tooling costs are prohibitive, BESTgasket may also use head gaskets from other manufacturers or NOS head gaskets for the really old engines.
ABOUT OUR REAR MAIN SEALS
Ever
since the big gasket
manufacturers discontinued using asbestos in the 1990s, rope rear
main seals
have been a huge problem to the vintage car enthusiast. The
non-asbestos rope seals available from the big boys are next to
impossible to trim and do a poor job of sealing. BESTgasket has two solutions to this
problem.
- Rubber replacements
of rope seals
- GraphTite™ rope seals
BESTgasket has developed rubber replacement seals for the
following engines where only rope seals have previously been available:

Buick st-8 40-50 series, 1934-53 Buick V8 364-401-425, 1957-66 * Cadillac
V8
331-365, 1949-58E Chevrolet V8 265-283, 1955-58 Chrysler V8
392, 1957-58 * Ford V8
312, 1956-57 Oldsmobile V8 301-324, 1949-56 Oldsmobile V8 371-394, 1957-58 * Oldsmobile V8
394, 1959-64 *
* included in our Engine Rebuilding Sets, others are only sold
separately
GraphTite™ rope seals are miles ahead of any other rope seal out there.
This marvelous material is easy to trim. . . and it seals!! To ensure exact trimming, each kit
includes installation instructions, a special knife, and a few other trimming
aids.
Our customers have reported great success with GraphTite™ rope seals, finally solving those aggravating rear main seal leaks. No hype here. . . just results.
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