Re: BB GM Heat Riser # 3940977
Ed,
Did your part number supercede another number? I can't find your number in my GM books. I have a GM heat riser but it has another number stamped on it.
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67 Camaro RS/SS 396 Original Drivetrain
70 Chevelle SS 396 Convertible Original Drivetrain
70 Chevelle SS 454 LS5 Survivor Original Drivetrain
70 El Camino SS 396 Original Drivetrain
65 Impala 396/425
65 Triumph TR4 Original Family Owned
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