panhandle auto fastener bb fits chevy 396 402 427 454 valve cover stud kit bolts stainless steel big block panhandle auto fastener new valve cover stud kit stainless steel for 396 402 427 454 big block fits chevy engines . the studs and nuts are 18-8 stainless steel. this will fit oem and some aftermarket stamp steel and aluminum perimeter bolt hole valve covers. this kit contains 14 studs and 14 serrated flange nuts .