BBK 1584 Twin 58mm Throttle Body Gasket Kit for GM Twin 305/350

This is a good quality gasket for Chevy gen2 Lt1 aftermarket throttle bodies like holly or bbk.

Worked perfectly on my 97 Pontiac Trans Am. It matched up with all the passages on my BBK 58mm throttle body. Gaskets are thick and well cut, packaging says "Made in USA" on it. Can't go wrong.

These gaskets fit my Holley 58mm perfectly. The IAC hole is correct, not the big triangle others have.

A sticker and got nothing