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Tech Question
Dan VanWinkle, Panora, IA, 1967 Dodge Coronet 383
First off, thanks for a great mag and the tech section. I need a little advice on what engine to use. I have a 1965 383 original, a 2bbl engine thats in very good shape, recent rebuild with 4-bbl 600CFM carb and Performer intake. I also have a 1972 440 4bbl out of a motor home with 49,000 miles it is in very good shape. The 383 is in my '67 Coronet now but I am thinking of switching to the 440. I will be adding a mild cam kit like a 383 /440 mag grind and lifters to one of these engines plus headers. With both being decent condition long blocks which one will wake up the best? The rest of the car: 727 trans, stock converter, pretty tall rear gears 2.94:1 in the 8-3/4. I'm just wanting to get in the 330 to 350 HP range with either engine.
Thanks for your time.
Dan-
Two factors swing the pendulum over to the 440 for sure:
> The longer stroke will be much nicer with the tall gears.> The cylinder heads are MUCH better on the '72. And, depending on the build date, it may have hardened exhaust seats for safe operation on unleaded fuel.
This assumes that you have a normal-looking "light duty" 440, not the version with the oddball heads, cooling, valve rotators, etc.
The stock intake manifold on the '72 accommodates the stock 850 T-Q carb, which is about as good as it gets for a street mixer.
Rick
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