View Single Post
  #3  
Old 02-28-2017, 05:51 PM
Keith Seymore's Avatar
Keith Seymore Keith Seymore is offline
Yenko Contributing Member
 
Join Date: Feb 2009
Location: Motor City
Posts: 2,681
Thanks: 2,723
Thanked 5,022 Times in 1,382 Posts
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
__________________
'63 LeMans Convertible
'63 Grand Prix
'65 GTO - original, unrestored, Dad was original owner, 5000 mile Royal Pontiac factory racer
'74 Chevelle - original owner, 9.56 @ 139 mph best
Reply With Quote