My 383

[R&R]

My 65 Newport has a 383 4bbl. First 4 bbl car I’ve owned. I see it’s factory rated at 330hp. My Dad had a 65 Satellite with a 383, HP335 rated at 335hp My question is, what’s the difference between the two? I think pistons are the same.10:1?? I’m guessing the cam. I think his had a factory dual point distributor. Looking for clarification on all that, and anything else. Wondering what I have. He bought it new, added Mickey Thompson brand lifters, set of headers with caps, curve kit in distributor, reverse manual valve body, floor shifter, Detroit Locker, had 410 gearing. He won a lot of races at Detroit and Toledo Drag strips in 1965. B Stock class. Daily Driver. Put 30k miles on it and lost his license all within a year. Lol. Sold it and bought a 67 Bonnieville, decided to settle down and in his words “go full family”. He was 24, had a wife, 3 kids, mortgage. Life in the fast lane. He quit racing. For about a month, bough a new Honda 450 four. Said they laughed till he started winning races. Lol. He was a great guy. Tangent over. Just wondering about the specs, including the heads, and how they compare to the 383 Magnum Roadrunner engines.

 

[MONC440]

Welcome to the site. Love the vintage pics, my dads first new car was a 65 Sport Fury 383 w 4 speed. That 5HP difference could have been different exhaust or they just wanted to say the the Satellite had more power?

As far as how the 65 383 stacks up to a say 68 RR 383, the 68 had better heads with larger valves and better intake, carb and dual exhaust. The 383 is probably my favorite engine for all around everyday driving and performance. The bore is the same as a 426 and the stroke is shorter than a 360 so it can and will handle some RPM's which is good if you wanted to run a 3.91 or 4.11 on the daily.

 

[Big_John]

Everything I've ever seen lists the '65 Chrysler 383 4bbl as 315 HP.

This is from the dealer data book at :
The 1970 Hamtramck Registry - 1965 Chrysler Dealership Data Book - Features/Equipment/Specifications

 

[Toolmanmike]

Yep, 270 2 barrel 383 or 315 horse 4 barrel 383 in 1965 for Chrysler.

The 1970 Hamtramck Registry - 1965 Chrysler Dealership Data Book - Engineering

 

[CBODY67]

Disinformation strikes again, unfortunately.

The 1965 Chrysler 383s were 270 horsepower for the 2bbl and 315 horsepower for the 4bbl. BITH with single exhaust. 1965 was the last year for the use of the 252/252/.390 cam in the 383 4bbl Chryslers, although the use of single exhaust on a Chrysler 383 4bbl went to 1867. As all of the power figures were "gross" figures, the exhaust system behind the engine did not matter.

For 1966, the new "standard cam" was introduced for 383 4bbl motors. 256/260/.425-.431. That brought the power rating to 325 horsepower "gross" rating. Also used in the 440s of 350 and 365 horsepower.

For 1967, the 440/375 "GTX-application" happened. The "Special Cam" was the 268/284 HP cam, which was later the 1968 383/335 "Road Runner" cam. The 440/375 was unique not only for the cam, but ALSO for the closed chamber heads with 1.74" exhaust valves, that the "upswept" HP exhaust manifolds w0re bolted to. All 1968 B/RB cyl heads had the open-chamber (purported to be better) cyl heads.

NOW . . . things get a bit blurry. The 383 4bbls in earlier-than-1966 can have variations! Chrysler got the 252/252 cam as the Plymouths and Dodges got a 260/268 cam, which was the normal 413/340 cam. The 413/360 4bbl cam had a bit more duration and lift, and also had a factory dual exhaust behind it. These cams can go back into 1960 or so in Plymouths and Dodges, as "Police Interceptor" engien cams, I believe.

As to POWER ratings, there were some 383 4bbls which were rated at 330 horsepower in the 1963-1964 timeframe, with normal exhaust manifolds and dual exhausts, the downsized Plymojths and Dodges. The 1970-era 383 4bbl (like in my 1970 Monaco Brougham) had the 256/260 cam, HP exhaust manifolds, AVS 4bbl, factory dual exhaust, dual snorkel air cleaner, with the 256/260 cam.

EVEN BLURRIER still . . . for 1970, in a Challenger 383 4bbl, it was the 383/330 engine. If it was an "R/T", it was the 383/335 engine with the 269/284 cam. According to the 1970 Dodge Order Guide, if factory a/c was ordered with the 383/335 engine, what was installed was the 383/330 engine! AND . . . this can also relate to the color the engine was painted! Blue/turquoise for the 256/260 cam engines and Orange for the 383/335 engines with the 268/284 cam. AND . . . ALL Of these engines were VIN code "N", defined as "383 High-Performance" engines in the Factory Service Manuals.

In respect to the 1964 383/330 4bbl engines in Plymouths and Dodges, versus the later 383/325 4bbl engines, where that additional 5 horsepower came from seems to be a mystery not found in the OEM specs. No larger carburetors, no bigger exhaust manifolds, no different ign advance curves, etc.

SO . . . to the OP's comments, things were NOT as universal between the carlines as it might be suspected, until the 1966 model year. With a few kinks in the mix, though.

Enjoy!
CBODY67

 

[R&R]

Disinformation strikes again, unfortunately.

The 1965 Chrysler 383s were 270 horsepower for the 2bbl and 315 horsepower for the 4bbl. BITH with single exhaust. 1965 was the last year for the use of the 252/252/.390 cam in the 383 4bbl Chryslers, although the use of single exhaust on a Chrysler 383 4bbl went to 1867. As all of the power figures were "gross" figures, the exhaust system behind the engine did not matter.

For 1966, the new "standard cam" was introduced for 383 4bbl motors. 256/260/.425-.431. That brought the power rating to 325 horsepower "gross" rating. Also used in the 440s of 350 and 365 horsepower.

For 1967, the 440/375 "GTX-application" happened. The "Special Cam" was the 268/284 HP cam, which was later the 1968 383/335 "Road Runner" cam. The 440/375 was unique not only for the cam, but ALSO for the closed chamber heads with 1.74" exhaust valves, that the "upswept" HP exhaust manifolds w0re bolted to. All 1968 B/RB cyl heads had the open-chamber (purported to be better) cyl heads.

NOW . . . things get a bit blurry. The 383 4bbls in earlier-than-1966 can have variations! Chrysler got the 252/252 cam as the Plymouths and Dodges got a 260/268 cam, which was the normal 413/340 cam. The 413/360 4bbl cam had a bit more duration and lift, and also had a factory dual exhaust behind it. These cams can go back into 1960 or so in Plymouths and Dodges, as "Police Interceptor" engien cams, I believe.

As to POWER ratings, there were some 383 4bbls which were rated at 330 horsepower in the 1963-1964 timeframe, with normal exhaust manifolds and dual exhausts, the downsized Plymojths and Dodges. The 1970-era 383 4bbl (like in my 1970 Monaco Brougham) had the 256/260 cam, HP exhaust manifolds, AVS 4bbl, factory dual exhaust, dual snorkel air cleaner, with the 256/260 cam.

EVEN BLURRIER still . . . for 1970, in a Challenger 383 4bbl, it was the 383/330 engine. If it was an "R/T", it was the 383/335 engine with the 269/284 cam. According to the 1970 Dodge Order Guide, if factory a/c was ordered with the 383/335 engine, what was installed was the 383/330 engine! AND . . . this can also relate to the color the engine was painted! Blue/turquoise for the 256/260 cam engines and Orange for the 383/335 engines with the 268/284 cam. AND . . . ALL Of these engines were VIN code "N", defined as "383 High-Performance" engines in the Factory Service Manuals.

In respect to the 1964 383/330 4bbl engines in Plymouths and Dodges, versus the later 383/325 4bbl engines, where that additional 5 horsepower came from seems to be a mystery not found in the OEM specs. No larger carburetors, no bigger exhaust manifolds, no different ign advance curves, etc.

SO . . . to the OP's comments, things were NOT as universal between the carlines as it might be suspected, until the 1966 model year. With a few kinks in the mix, though.

Enjoy!
CBODY67

Wow! Great info.