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  #1  
Old 11-28-2003, 11:11 PM
mastrdrver mastrdrver is offline
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Default Big Block Dart?

Will a bb drop right in a 67/68 Dart? I am hopping to build on a 400 motor, or 440 which ever I can find.

Thanks
Jeremy
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  #2  
Old 11-28-2003, 11:14 PM
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read here;
http://www.bigblockdart.com/
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  #3  
Old 11-28-2003, 11:25 PM
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Mister Fiberglass Mister Fiberglass is offline
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A 400 will "fit" better.....since it is narrower.
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Old 11-29-2003, 04:36 AM
mastrdrver mastrdrver is offline
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I know that the 400 based motors are shorter, but how much shorter and do this effect at all header usage? Also I am hopping to use 245/50 16s up front and out back, but I was doing some reading and wondering if you guys think they will work with the right backspacing or if they are too wide or tall?
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Old 11-29-2003, 05:24 AM
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The book shows 26.25" for the 400 and 28.8" for the 440 from ex. man. to ex. man. with production manifolds. From bottom of pan to top of valve cover it's 22.2" for the 400 and 23.1" for the 440.
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Old 11-30-2003, 03:59 AM
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Jelsr, if both engines use identicle manifolds then the 400 block is 2.55" narrower than the 440. Is that correct?......djs
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Old 11-30-2003, 06:11 AM
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yes but unless you have a lot of money a good argument can be had for the small block in the dart.
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Old 11-30-2003, 04:18 PM
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I would go with a 383/400 simply because the manifolds will fit better. If you look at an HP mainfold in a B/RB A youll see the steering shaft sneak past the #7 exhaust port pretty close. On a RB, that #7 is a tad taller and the steering shaft may be even closer to the manifold. Bigblockdart.com is THE authority on this combo and has loads of info on everything from exhaust to steering.
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Old 11-30-2003, 09:05 PM
jelsr jelsr is offline
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djs, don't think so. I was quoting figures from the MP Chassis book but I've never really figured the difference in width between B and RB. The only difference is .745" in deck height. Everything else is identical. If this was for a flat (opposed) setup it would only make just short of 1-1/2" difference so the manifolds must be different. Makes me doubt the entire table. Some of the Math people should be able to nail this down, the height goes up at a 45deg angle on each side. My guess would be 3/8"per side gain in width for a total of 3/4" (thats rounding the diff at .750) Thats also by the SWAG method.
Jim
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Old 11-30-2003, 09:52 PM
mastrdrver mastrdrver is offline
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Does anyone know if any of the Indy heads will work? I would like a bit more of a port then what is on the Edelbrocks, and I probably will go with a 451, but any lt header that I have seen say that they wont work with Indy heads.

I guess the real question is what is needed for this swap? Is it just motor mounts, new exhuast, and maybe a tranny? Will a stock K-member still work?
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Old 12-01-2003, 12:23 AM
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That makes more sense. Thanks Jelsr..........djs
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Old 12-01-2003, 01:14 AM
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Mas, Streetmasters makes a bolt on solid mount along with the more well known Schumachers. They both use a standard K (no spool mounts) and all you need is a 727-B or a manual bell and a 3 piece kickdown. Figure a good 3 core radiator or Aluminum job and an upgraded fuel line to the tank. From exhaust flange to exhaust flange is just shy of 21 inches on a 383/400
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  #13  
Old 12-02-2003, 04:03 AM
George G. Leverette George G. Leverette is offline
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Its a whole lotta difference when the B and RB are stuffed into the engine bay of a 67-76 A-body had a 440 duster with factory exhaust manifolds and the clearance was very limited on the rifgt side, the brake master cyclinder and the hood required clearance with a BFH to clear the dual snorkle air cleaner. The current project is a 68 barracuda with 383 and factory exhaust, the engine is in the car without air cleaner and much more room is evident.
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Old 01-04-2004, 09:58 PM
mastrdrver mastrdrver is offline
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Since the early Cudas sit on the same frame, will all the things that work on a Dart work on the Cudas?
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  #15  
Old 01-07-2004, 03:26 AM
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no, cudas are a tad bit shorter than a dart (2-3 inch wheelbase)
i believe whatever will fit under the hood is the same on both cars.

but i recommend against that much weight up front of any a-body, unless you are using all the aluminum engine parts you can afford and really don't care how big of tires you have to put on it or how many diffs you destroy.

with that said, i am building a big block stroker for my dart based on a 400 block but i am prepared to spend mega dollars putting the power to the ground and not to excessive wheel spin or scattered parts or pretzeled sheetmetal.
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  #16  
Old 01-07-2004, 12:39 PM
George G. Leverette George G. Leverette is offline
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The weight up front is not as drastic as anticipated, ran a 440 with 318 bars and KYB shocks, and manual steering. Finally upgraded to 1.04 Torsion bars and frame connector but the difference was only noticed when near the limits.
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  #17  
Old 01-07-2004, 01:12 PM
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hey george, did you ever have any troubles getting the car to hook?
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