The 8th Gen Riviera Resource
HomeDashboardFAQSearchRiviera Questions & AnswersWrite-Ups IndexRegisterRelated LinksMemberlistLog in

Share | 

 1966 Riviera GS question.

Go down 

Name : Van Ward
Joined : 2011-11-09
Post Count : 1
Merit : 0

PostSubject: 1966 Riviera GS question.    Wed Nov 09, 2011 5:16 pm

Looking at a 66 Riviera GS for sale right now. MZ engine code but missing the dual quad, has a single on it now with the Star Wars air cleaner on it. How hard would it be to find the proper carb setup and get it back to original?
Back to top Go down

Name : steve
Age : 66
Location : L.I NY
Joined : 2008-03-09
Post Count : 112
Merit : 0

PostSubject: Re: 1966 Riviera GS question.    Fri Nov 11, 2011 12:21 am

Go to plenty of riv experts there
Back to top Go down

Name : Doc Modisett
Age : 76
Location : Lawrenceburg Tn.
Joined : 2010-04-30
Post Count : 35
Merit : 11

PostSubject: Re: 1966 Riviera GS question.    Fri Jan 27, 2012 8:50 am

You can do this fairly easy ,,,,, but,,,, be prepared to spend a bunch of money..... all of the items for the factory correct set up have a hefty price ,,, no matter what it is.....
You will need to get the intake,,, the factory correct carb numbers,,,, the factory correct air cleaner assembly.... [I have seen the correct nut that holds the lid on go for as much as $65] the carb linkage for a factory correct is different from the aftermarket ones.... the correct kick down switch and the bracket that goes with it,,, the right fuel lines,,, and the right power brake fitting and hard line..... the going price for such a set up is usually $1500 or more.... and,,,,, some guy can come along with a good single carb set up and out run it..... assuming the same amount of power for each engine....
Then there is the other side of the coin,,,, you have 2 carbs to rebuild,,, linkage to adjust,,,, ect....but,,,,, the ''wow'' factor is high.......also ,,, in order to get the full potential from the dual carb set up,, you will need the ''other stuff '' to go with it.... [the factory did not just set 2x4's on a engine and let it go down the assembly line] you need a good hot cam,,,, the performance distributer curve,,, and the low restriction exhaust system.....the 3.42 diff with posi,,,, all this must be there or the 2x4's will not perform as it should,,,,
back when I was looking for a riv to buy, I drove a riv, that had the 2x4's on it,,, I could tell when I started the car up and did a walk around listening to it , that it did not have a hot cam and did not have low restriction exhaust,,, and I aint talking about the loud aftermarket types like flowmasters ect....,,,, On the test drive , I let it get warmed up good , then stepped down on the accellerator and the car was a stone..... either one of the cars that I have now would run circles around it..... then the guy was miffed because I offered him less than what he wanted....just some ideas,,,, Doc
Back to top Go down

Name : Aaron
Age : 41
Location : C-bus, Ohio
Joined : 2007-01-13
Post Count : 18345
Merit : 241

PostSubject: Re: 1966 Riviera GS question.    Fri Jan 27, 2012 10:49 am

Thanks for your insight, Doc. Much appreciated!

'98 SC Riviera 281k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO 85k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun

'70 Olds Ninety-Eight Holiday Coupe 116k miles 455 Rocket V8
Because cool

'95 Celica 152k miles 0-60: yes
Because free
Back to top Go down

Name : Rod
Age : 63
Joined : 2014-03-25
Post Count : 67
Merit : 3

PostSubject: Re: 1966 Riviera GS question.    Mon Feb 20, 2017 6:15 pm

I think the dual 4s was a dealer installed option in 1966. 64-65 was factory installed (but could be dealer installed too of course). But the Quadrajet spread bore manifold and carb were unique to the 1966 Riviera GS making the nailhead quadrajet manifold pretty rare too. The regular 66 Riviera had the typical AFB square bore manifold.

The GTO with the quadrajet actually outperformed the 3-2bbl setup.
Back to top Go down
Sponsored content

PostSubject: Re: 1966 Riviera GS question.    

Back to top Go down
1966 Riviera GS question.
Back to top 
Page 1 of 1
 Similar topics
» Pulley Question
» grip strength advice..ask david horne any question on grip training....
» Mayan Riviera excursions -- best deals out there
» Level Adjust Question
» Boston Qualifying Question

Permissions in this forum:You cannot reply to topics in this forum
Riviera Performance ::   N/A V8 Tech :: 425 V8 Engine & Transmission-
Jump to: