Patent ID: 8127733

Claim:
An air intake system for an internal combustion engine, comprising: an intake manifold having an inlet flange comprising a first plurality of fastener bores; a throttle body mounted to said inlet flange, with said throttle body comprising: a valve body; a throttle body flange comprising a second plurality of fastener bores, attached to said valve body, for engaging said inlet flange of said intake manifold; a plurality of fasteners for attaching said throttle body flange to said inlet flange; and a friction promoting surface incorporated in at least one of said inlet flange and said throttle body flange, wherein said friction promoting surface comprises a segment having a roughened surface when compared to a remaining surface of said inlet flange or said throttle body flange, the segment located proximate at least one of said first plurality of fastener bores and said second plurality of fastener bores, whereby sliding motion of said throttle body relative to said intake manifold will be resisted.