A12 cars

[plowman]

i have read somewhere a person could opt for a more aggressive cam when order. Is that true?

 

[super-bee_ski]

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

 

[biomedtechguy]

It was BRILLIANT and possibly one of THE all time BEST PERFORMANCE VALUES of the heart of the Muscle Car Era.

 

[Cojohnso1]

It was BRILLIANT and possibly one of THE all time BEST PERFORMANCE VALUES of the heart of the Muscle Car Era.

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.

 

[33 IMP]

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.

"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]

It became available to all B&E bodies in '70.

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]

i have read somewhere a person could opt for a more aggressive cam when order. Is that true?

No.

 

[biomedtechguy]

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.

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:

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.

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.

 

[super-bee_ski]

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.

Oh My God!

AWESOME!