05-31-2019, 10:48 AM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
Thanks: 3,506
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All 100 1964 Ford Thunderbolts were delivered to the selling dealerships with a single exhaust.
The reason for this came from the NHRA, which required Stock and Super Stock cars to have a, "streel legal exhaust system." Each T-Bolt had a single 1.5-inch pipe running under the passenger side of the floorpan. A stock six-cylinder Fairlane straight-through muffler was positioned in the standard location beside the gas tank. At the track, the header caps were removed allowing the 427 to breathe freely. This was done for weight saving.
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