for application suitability blue stripe performance valve cover gaskets ... evenly distributed throughout a rubber binder in addition the blue stripe gasket is ... gaskets with a steel core sandwiched in between two layers of cork-rubber material the ... an excellent choice when high-vacuum or blowout conditions can cause problems sb chevy ... 1/64 .156 11.99 1603 blue-stripe cork-rubber 7/32 .219 13.99 ... 1/4 .250 32.99 1648 center bolt cork-lam w/steel core 1/4 .250 36. ... 99 bb chevy 1605 fel-coprene rubber 1/64 .156 ... 11.99 1606 blue-stripe cork-rubber 3/16 .188 14.99 ... w/steel core 5/16 .313 36.99 ford 62-87 exc boss 1614 302/351w fel- ...