Cliff's Quadrajet Parts and Rebuild Kits
General Category => Quadrajet Carb Talk and Tips => Topic started by: Haagdakta on January 06, 2017, 05:55:58 PM
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Doing research on putting a quadrajet on 1963 Impala, 283 9.25:1 compression, power glide, dual exhaust, stock mufflers, stock cam, stock heads, 3.08 rear axle. First step in my research was Cliff's book. Back in the day I have probably rebuilt 50 to 75 or so Q-jet carbs, and still learned a lot from the book. Primary reason for wanting to do this project is a little more performance, of course, but primarily, some more fuel mileage. First hurdle is the intake manifold. I want to stay with the front mounted oil tube, and stock valve covers and pcv system. I have done some research on this, and found some good results were accomplished using an Edelbrock Streetmaster intake and a Q-jet carb. Although the Streetmaster intake is a single plane intake, it was designed in the 1970's during the oil crisis years as a fuel mileage intake utilizing small runners to keep velocity up. I am thinking a Q-jet from a late 70's early 80's 305 cid would be a good starting point. I realize some modifications will probably have to be made to accommodate the stock throttle linkage and kickdown linkage. I will want to run an electric choke, and I think the adjustable part throttle would be an advantage. Looking for suggestions and comments. Let 'er rip!
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Pic of my 67 327 with a Qjet from a 84 305. Not sure what the linkage looks like on a 63, I'd think similar.
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What intake are you running on that 327?
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This. But I think it's going to get changed to a Performer.
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You are limited on intakes with the oil fill tube. I put a performer intake on my Vette. This intake has a spot for the tube. I had a machine shop punch the hole for the tube. I think offy might still have one with the spot for the tube as well. I think edelbrock might still have the tubes available as well. Factory Q-jet intakes with the tube have the troublesome exhaust passage that runs under the carb itself. They need the steel sandwhich gaskets. I had vapor lock issues and went with the performer. Problem solved. Cliff has this posted in the lobby section. "must read".
Jim, What kind of intake is that? I've never seen anything like that. I can't blow the pic up for a better look.
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Thanks for the heads up on the factory intake issue. I was able to score a very nice vintage Edelbrock Street Master locally for a mere $30.00! It has the provision for the front mounted oil tube. I haven't seen an intake like that either. Be interested in knowing what it is also
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I would also like to know what intake that is, Jim. Just out of curiosity.
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Late 70's supposedly answer to mileage & low end torque. Had it on my 305 in the Monte with a Holly 4360, still got 18 mpg same as the 421.
Here some info that I found.
http://www.hotrodders.com/forum/old-holley-intake-question-133473.html
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Interesting, thanks.
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I have a 283 in my 1964 Chevy ll Nova.It has a performer intake with Edelbrock 1406 carb (I have a Qjet 7042210 to install later) I ran the Qjet until a larger cam was installed with 601 HO heads. Cam spects 221&226 @.050 with 442& 446 lift. The Heads have 1.84 intake and 1.50 ext..Powerglide with 1.82 low gear with 3.36 rear axle.1406 carb is a little rich.still pulling at 100 MPH. when weather warms up the Qjet will go back on with Mods (I have Cliff's book.... :D
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You said you wanted to use the stock '63 valve covers and PCV. But isn't the '63s PCV just a vent from the back of the intake to the air cleaner? That what my '65 Impala 283 had back in the day.
I'm asking because don't Qjets require a "modern" PCV connected to the base plate in order to operate properly?