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Old 05-13-2012, 05:05 PM
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GM cars with 112 inch wheelbase

I want to race next year and am having trouble finding a car it has to be a GM product with 112 inch wheelbase any help will do thanks!!

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Old 05-13-2012, 05:23 PM
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GM A-body cars were 112", like a '70 Chevelle for instance. Odd that they aren't using the 108" metric GM chassis like much of the rest of the entry-level racing world. Don't get me wrong- the A-body chassis can be a good chassis- but they're not as easy to find and usually cost more when you do find one.

More wheelbases, etc. are in Crankshaft Coalition wiki articles, here and here- be sure to double check before spending any money. You also might turn up more info by doing a search here and on the net.

Last edited by cobalt327; 05-13-2012 at 05:41 PM.
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Old 05-13-2012, 07:05 PM
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To add to what Cobalt mentioned.

ONLY the 2dr versions of the GM A-bodies are 112 (68-72)
The 4dr and wagons are 116.

The 2dr bodies are getting a bit pricey
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Old 05-14-2012, 04:41 AM
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Actually, the 1968-1977 A-body 2 door cars all have a 112 inch wheelbase EXCEPT the 69-72 Grand Prix and Monte Carlo.
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Old 05-14-2012, 06:11 AM
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Added to the wiki page on WB, thanks.
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Old 05-14-2012, 08:44 AM
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I think Joe P is right. The 4 door cars are 4 inches longer. I started with a '69 Skylark chassis to put under a '49 Merc. Used 4 door so I did not have to lengthen it as much. That may be why they chose that wheel base. The 4 door cars will be more affordable.

John L
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Old 05-14-2012, 09:13 AM
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Jeremy, can you post your rules? Or a link to your rules? Is your rule worded that cars MUST BE a 112" wheelbase? (meaning only a 112" wheelbase car) Or be a MINIMUM 112" wheelbase? (which means any car that has at least 112" or longer wheelbase) Some tracks, in an effort to keep entry level racing more affordable, have gone to a MINIMUM 112" wheelbase rule. Their reasoning is to open the class to bigger cars that are less in demand, but still available, with v8 engines, rear wheel drive, and full frames, like the Bel Air, Impala, Caprice models, Olds 88, Buick LeSabre, Pontiac Cataline, as well as the "big" Chevelle's (pre '78). These cars would not be able to be as competitive if they had to race against the smaller, lighter intermediate "metric" cars.

Probably the best choice would be a 2 dr Chevelle, but as Cobalt327 pointed out, they're gonna be pricey if they're in any kind of decent condition. My first choice would be a 78-72 2 door as I feel they have the best combination of weight and suspension, better then the 64-67 models. The 73-77 models were heavier but had a better steering geomety, and handle well.

Probably the next best choice, maybe even a better one, would be one of the "big metric" cars, 77 thru the 90's Impala/Caprice, Pontiac Catalina, Olds 88, Buick LeSabre. These were downsized from the "big boats" of the pre-77 cars. Much lighter, and they have a very good steering geometry. This chassis is used by LeftHander to build their modified chassis. I've seen many of these cars run competitively with the 77-88 intermediate "metrics". With a 116" wheelbase, they're no longer than a 4 door Chevelle, Cutlass, Grand Prix from the pre-78 years. They're full frame, rear wheel drive, and available with 305 and 350 v8 engines. These cars can be bought very reasonably priced, and are still pretty widely available
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