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Years ago I had a 71 360 Newport man could that barge run tHe early run 3602bbls had Holleys on them and put out a pile of torque. Every 383 I have seen prior to the 330-335 hp versions were pigs period. They finally realized that better exhaust manifolds and heads make a happier 383. I would go 360 but if the 383 is a HP version I would consider it

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I'll call bull on this one. And we used to put the 71-2 360 top end on the 318's in the stock cars(cheated) Both cars being equally stock, your 360 doesn't have a chance.

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The pre-68 383's were of a utility (grocery getter) design to carry passenser vehicles to and from different places. Sort of like the LA 318-2
bbl mill. Same with the LA 360 mill, basically a
truck motor (long stroke/overbored 318). No Hi-
performance mods were available till after 68'
and then again in 74'? Basically they are in a
way two different style mills with different
personalities. The 383 lends itself to the midrange-top end torque and horsepower (like the
340 and the HEMI), whereas the LA 360 churns its'
horsepower and torque clearly in the lower regions
of the rpm scale (low-midrange to 5000+ rpm) like
its' BIG INCH brother the 440. A 383 built right
can run equal times in the quarter as a equally
prepped 360. Both have to be in weight proportioned chassis to their respective engine
size and output. It would be close!! Anybodys'
guess.

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I was just kinda thinking about this earlier. The 383 only has 23 more cubes than a 360 and shorter stroke. I have never built a BB or RB motor so I only know what i've read and seen 2nd hand.

I know this is kinda a weird question, I was just curious. I was thinking and the 360 only looses 23 cubes but has a longer stroke. However, the 383 has a larger bore and probably heavier pistons. So, which is more of a torque monster, by how much, and why?

I know it would depend on how you build it, but lets just say for a standard mild build. Dual plane intakes, and nothing really exotic in terms of parts.

Also, aside from cost (which is obviously a HUGE factor) what are the benefits of one motor over the other. And no offense, but I am looking for objective answers. I understand some people just have their personal reasons for one kinda motor over the other (favorite motor is the 318 poly).

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The 360 would be the torque monster built as is,
as the 383 would be the higher revving of the two.
Due to the short stroke/big bore design the 383,
as stated before, lends itself better to the higher
engine speeds. Other design factors as low rotating mass and better breathing efficiency
(440 heads, cam and carb) does make it (383) a
great street package. The 360 with its long
rods and longer than 340 stroke, generates an
abundance of low to midrange torque. This design
was to keep the engine weight down (no big blocks
after 78')but the big torque numbers up, to move
heavier vehicles and equipment.

AS far as a mild buildup, three questions:

1. What chassis and how heavy the vehicle is?
2. Is gas mileage and type of gas used important?
3. What is your driving style/intention of usage
for this vehicle.

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oh man in a C body???? gotta go w/ the 383. Unless you need a extra room to keep your tool box or something.

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100%
Except under one extreme condition: if the vehicle
has been built to be a HANDLER OR CANYON RACER with lots of suspension mods and/or weight removal. I would then 360!!!

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If you are talkin C-body; only reasonable choice is the B engine. My 66 Polara and Monaco both have the 383. I cant imagine a 360 trying to pull one of those down the pike. A stroker 432 would be great in one!

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I have a '68 Sport Fury convertible with the stock 230 hp 318 and it will run 75 mph all day on the highway and still pull 21-23 mpg. Before I bought it I was thinking of putting the 383 in, but after driving it, that ain't going to happen anytime soon. Some of the C's aren't as big as they look, my SF is the same over-all length as the '68 Charger I had. Both cars took up the same amount of space in the garage.

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Anything is possible!!! Never say never.

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I like big blocks but I would not build a 383. The 383's can be built to haul, but you're basically taking a weight penalty for no huge gain over a 360. Now do a 400 based stroker which is the same externally as a 383 and now you're talking!

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Old school science still works, "NO
REPLACEMENT FOR DISPLACEMENT". One of many approaches to power production. Can be used on
the 360 also. A 408-410 ci smallblock CAN be just
AS POWERFUL as a STROKED 400 mill. CAR WEIGHT in
proportion with type motor used.

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Depends on the car. A-body 360 (just for ease) and B-body 383, they just don't look right w/ a SB. E-body is a coin flip.

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too !! The vehicle weight vs. engine
displacement has a LOT to do with vehicle
performance. Now when you start increasing the
displacement, the performance aspect increases
too, if vehicle weight is constant (no change).
Funny thing though a decrease in displacemnt with
a measurable decrease in weight does also provide
better performance.