Allstar Performance Aluminum Timing Cover BB Chevy AS05321 Air intake system includes two-part

Air intake system includes two-part center and side air intakes (installed)

Includes spring seats and adjuster nuts

16 AN Male to 1 in NPT Male

it's been one of three options

Allstar Performance Aluminum Timing Cover BB Chevy AS05321 Air intake system includes two-partPolished cast aluminum covers resist warping and leaking that is common with OE style stamped steel covers. Recessed mounting holes are designed for button head fasteners (ALL99390) for proper installation. Covers clear most double roller style timing chains. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over