63 grand prix with 421 dual quad 4spd
 

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.

Re: 63 grand prix with 421 dual quad 4spd
 

never mind, I just saw they may have built a few of them.

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

Re: 63 grand prix with 421 dual quad 4spd
 

Keith, three SD GPs, with one a single 4bbl.

Re: 63 grand prix with 421 dual quad 4spd
 

no six packs in Pontiacs..thats a mopar term..i know he already said it..but...

Re: 63 grand prix with 421 dual quad 4spd
 

----Yup! SDs stopped in 1964. My old 64 was just an HO/4-speed, but they are very rare and probably way more driveable than a Super Duty. On the street there wouldn't be enough difference car to car to make the lack drive ability of the SD desireable IMHO!!!

Re: 63 grand prix with 421 dual quad 4spd
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 442w30</div><div class="ubbcode-body">Keith, three SD GPs, with one a single 4bbl. </div></div>

Thanks, Diego.

K