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Deep Moderate Exterior Exhaust Tone
3L V8 1969 - 1973 Chevrolet Chevelle 350/5
Additional parts may be required
6 V8 1972 - 1976 Pontiac LeMans Base 455/7
B&M TRANSMISSION SPEEDOMETER PORT PLUG - 20299 b-m Deep Moderate Exterior Exhaust ToneOverview: B&M Racing & Performance brings you this billet aluminum speedometer port block off plug that fits GM TH350, TH350c, Powerglide, Muncie M 20 and Aisin AY6 transmissions. This plug is used to block the mechanical speedometer gear port when upgrading to an electronic speedometer and includes a replaceable Buna N rubber o ring. It features a black Mil Spec anodized finish for long lasting good looks, even in harsh conditions. Comes with
