[Fwd: Re: 318/360]

From: Alan Short (ashort@flash.net)
Date: Fri Nov 06 1998 - 10:06:46 EST


That makes sense to me. Thanks for the info. Alan S.


attached mail follows:


Chrysler introduced the 360 2-barrel in 1971
with a compression ratio of 8.7:1. It developed
255hp at 4000 rpm and 360 lb.-ft. of torque at
2400 rpm.

In 1974, there were 2 360s with 4-barrel carbs.
One developed 200 hp @ 4000 and 290 lb.-ft. @ 3200;
the other, 245 hp @ 4800 and 320 lb.-ft. @ 3600.
Both had 8.4:1 compression ratio. By this time,
the Duster and the Dart weighed 150 lb more than
they did in '71. This and the overall decrease
in performance from 3 years before affected
acceleration. 1/4 mile times increased roughly
2 seconds to those of the 1970 Duster.

Performance quickly deteriorated quickly after that
and the 360 was cut at the end of the 1980 production
run.

In 1993, when Dodge "magnumized" the 360, much in the
same way they had done with the 318 in 1992, they could
not legally pump up the hp because of emissions. So,
instead they went for torque at a lesser rpm level.
Dodge only bolted-on the 318 top end which resulted
in 25 hp and 25-30 more lb.-ft. of torque.

These new magnums represented about 80-85% change in
content, compared to the previous carburetor and
throttle-body injected small blocks. There was also
a 25% reduction in components.

Hope this adds to the discussion.

Bob
Burlington, Ontario, Canada

Current: '97 CC Sport, 5.2L, 3,55 auto., 4x2, Gibson dual, KN dropin.
          '96 Grand Caravan ES, 3.3L
          '85 Shelby Turbo Charger, 2.2L, manual.
          '70 Challenger, 383-4bbl, auto.
Past: '71 Road Runner, 340-4bbl, auto.
          '70 Duster 340, auto.



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