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Old 02-28-2017, 05:51 PM
Keith Seymore's Avatar
Keith Seymore Keith Seymore is offline
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Default Re: 63 grand prix with 421 dual quad 4spd

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: black69</div><div class="ubbcode-body">Would a car like above be a special order? I thought most on the high end engine option would have been six pack. Figured somebody would instantly know here. </div></div>

Dual quad = &quot;Super Duty&quot;. I think they built one SD Grand Prix in '63 (a white one) but it was a regular production option. (My Pete McCarthy book as at home so I cannot verify).

&quot;Six Pack&quot; = I believe the term you are looking for is &quot;Tri Power&quot; [img]<<GRAEMLIN_URL>>/wink.gif[/img]. That was the HO engine, which was a step down from the SD, but also readily available.

K
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