A12 cars
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The car came with a Camshaft manufactured with "Low-Taper" lobes, Lubrited shaft, 0.0005 undersize and flat-faced tappets, "heavy stock" rocker arms and "Chrome Flash" intake and exhaust stems.
No, it was a "Package" known as the A-12 package designed by Brainchild of legendary Chrysler Race Program engineer Dick Maxwell and co-worker, teammate Jerry Gross.
Now, dealers like Grand-Spaulding would hop it up for you
But, it was a pretty stout and well designed package off the showroom floor
No, it was a "Package" known as the A-12 package designed by Brainchild of legendary Chrysler Race Program engineer Dick Maxwell and co-worker, teammate Jerry Gross.
Now, dealers like Grand-Spaulding would hop it up for you
But, it was a pretty stout and well designed package off the showroom floor
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It was BRILLIANT and possibly one of THE all time BEST PERFORMANCE VALUES of the heart of the Muscle Car Era.
Cojohnso1
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It was. In '69 (Late) only available to RoadRunner and Superbee. It became available to all B&E bodies in '70. It doesn't make a leap like that if not formidable. Mopar (For obvious reasons) didn't match race against their own hemi a whole lot. But the word in the day? "It was a close match." At a lower production cost.
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"Word of the day" was a A12 was quicker to 1/8th, would still be in front at a 1000 ft, and would lose by a car or two at 1320. The lowend torque of the 440 would kill the top end of a hemi..... for a while.
ACME A12
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Not the same offering for '70. Not even close. Three twos was the only similarity. A12 was a package that got you a lot more than 3 Holley 2300s.
69Coronetrt
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No.
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I see that, but to flesh that out a bit as a V-Code 70 Roadrunner owner, the V-Code had heavy (strong) rods, and that great intake and carbs, eccentric on the harmonic balancer, I believe the forged crankshaft is the same as HP 440 (and possibly other 440s). Funny thing is the 69½ and 70 440 6bbl are both "rated" at the same 390HP/490ft lbs torque.
I am very happy to have learned of the additional "bits" that ever so slightly yet brilliantly made the A12 440 6bbl that much better. As much reverence as I have for the A12 package, its powerplant, and that it made the V-Code I love so much possible, I never knew those little details stated here:
Ultimately, since my V-Code didn't have the #s engine and I wanted to mod it anyway, I'm going to have a Bill Mitchell aluminum RB block based 572 in my V-Code, and the only thing that is going to be "A12/V-Code" is the 3x2 Holley carbs...lol.
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