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-   -   Some "Dime Rockets" for the 4TH! (https://classracer.com/classforum/showthread.php?t=34410)

Paul Wong 02-03-2014 11:04 PM
Re: Some "Dime Rockets" for the 4TH!
 
Quote:
Originally Posted by Joe Toller (Post 419132)
I picture those Caprice/Impalas as being our generations 55-57 cars?

Here's one, it would need weight removed, but on the plus you could race in rich, corinthian leather: 77-78 Cordoba 318. Very plentiful in my neck of the woods, 8 1/4 rear (B-body 8 3/4 will fit), sturdy and cheap (demo derby guys LOVE them), they come in at 21.19, (3900 lbs!) but I know firsthand they are loaded with unnecessary lean-burn emissions crap and sound deadener, so getting some weight out wouldn't be as daunting as one might think. It also looks like, though maybe a deal breaker, the Edelbrock heads are allowed?
The edelbrock heads will take 4000 to 6000 to make work and would defeat the dime rocket theory. The limiting factor which is the carburetor won't need the aluminum heads anyway.

Billy Nees 02-04-2014 08:41 AM
Re: Some "Dime Rockets" for the 4TH!
 
Quote:
Originally Posted by Joe Toller (Post 419129)
There is a 79 in my local wrecking yard; it has a 2G on it, but who knows?

78 looks like a natural R, could be a T, still doable?

I just wanna see more oddballs in U!
Joe, if the car that you're looking at has the correct number intake and carb, it's good to go. Just not for you!

Now focus, focus, deep breathing, finish Comet.

Joe Toller 02-04-2014 09:40 AM
Re: Some "Dime Rockets" for the 4TH!
 
No worries Billy, just killing time. Right now the straight temp is -14, and the car is in the carport. I am way too close on this thing to stop now!

Billy Nees 02-04-2014 09:54 AM
Re: Some "Dime Rockets" for the 4TH!
 
The Caprice would probably be the easiest body to find and definitely the least expensive but the Camaro/Firebird would be the better car.

And at this point in time, it won't come close to running with the 302s.

Dwight Southerland 02-04-2014 12:23 PM
Re: Some "Dime Rockets" for the 4TH!
 
Quote:
Originally Posted by Billy Nees (Post 419125)
Joe, I'd have to put my eyeballs on that one. Every 79 305/2V that I ever saw had a Dual-jet carb, not a 2G. I guess that it's possible but I'd call it a 78.
I had a 79 Monza V8 that I bought new and it had a 2GC. However, the intake manifold number was 373598 like is listed for the '78 engines. I have also seen 79 Caprices, a 79 Firebird, a 79 Skylark and recently a 79 Nova with 2GCs, never a DualJet.

If you look at NHRA's sheets, they list the same intake manifold for the 267 with a DualJet and the 305 with the 2GC; is that possible? (I am not familiar with DualJets, other than they look like the front of a Qjet.) Also, is either of the 79 intake manifolds (14007372 & 14007374) aluminum?

The 78 alt intake 346260 is also used on the 76 and 77 305s, and the 75 and 76 350 2bbl. (Probably the 74 also; the tech sheet says 346266 but that could be a typo.)

Quote:
Originally Posted by Billy Nees (Post 419156)
And at this point in time, it won't come close to running with the 302s.
Agreed.

Billy Nees 02-05-2014 10:46 AM
Re: Some "Dime Rockets" for the 4TH!
 
Quote:
Originally Posted by Dwight Southerland (Post 419189)
If you look at NHRA's sheets, they list the same intake manifold for the 267 with a DualJet and the 305 with the 2GC; is that possible?
No. The dual-jet and the 2GC have a different bolt pattern. I've had a 79 Caprice and a 79 Camaro, 305s both that had dual-jets on them. I wouldn't doubt that it has something to do with where the cars were built and what plant supplied the engines.

Dwight Southerland 02-05-2014 11:08 AM
Re: Some "Dime Rockets" for the 4TH!
 
I did a bit of research last night and found that the two intake manifolds listed on the 79 tech sheet are both for DualJet. In fact, I physically inspected a 14007372 number which is cast iron. I'm going to chase down the carb numbers next. Billy, I think you are probably right about supply and model usage; maybe it has to do with timing in the production year, too. My Monza was ordered in September 1978 and delivered in October.

Bill Bogues 02-05-2014 08:39 PM
Re: Some "Dime Rockets" for the 4TH!
 
I've been running the 82 267 Monte Carlo combo for a year now and I have to say the intake manifold on this car has to be the world's heaviest for a small block chevy. Love that dual-jet too. '

joe huestis 02-05-2014 10:00 PM
Re: Some "Dime Rockets" for the 4TH!
 
Been looking at some of these U/SA combos such as the late 70's Camaro with the 305-2V and the 80's combos with the 267-2V . At 180 HP vs. 150 for the 267 is it worth carrying the extra 600 lbs. with the 305 ? Which is the better combination and what other chevy combos may be the way to go for U ?

Billy Nees 02-06-2014 08:28 AM
Re: Some "Dime Rockets" for the 4TH!
 
Quote:
Originally Posted by Bill Bogues (Post 419388)
I've been running the 82 267 Monte Carlo combo for a year now and I have to say the intake manifold on this car has to be the world's heaviest for a small block chevy. Love that dual-jet too. '
Bill, there is an aluminium intake available. I just don't remember which one it is.


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