pearljam724
Well-Known Member
What was the approximate/proclaimed horsepower of a factory built 383 and 440 big block ?
You maybe correct. I knew one version was 390 I forgot about the 6 pak.I thought the 440 bbl topped out at 375hp and only the 6 pack 440 was rated at 390?
440 HP x 4bbl = 375HP/480ft lbs torque
440 6bbl = 390HP/490ft lbs torque
383 HP 325HP as stated, w/440HP Heads and Cam
What was the torque output of a 383HP?
IIRC the 375/396 had a solid cam and the big square port heads. Rated at 375 in a Chevelle and 425 in the Vette. We are building a 68 Chevelle 396 Hedders all the usual HP goodies, will see how it stacks up against my 68 440 R/R.My best friend had a 70 4 speed, N96 Roadrunner back in 79-82. I hooked him up with the owner who sold him the car.
My bud put a hydraulic cam (284°/.488)??
Intake, headers, gear.
It was a contender on a lot of "chance encounter" street races. Low 13 second car. A blast to ride in.
My 70 V-code Roadrunner with cam, headers, 6bbl, 71 steel crank 440, manual transmission runs so strong it's almost like a different engine than the 71 440 4bbl in my 71 R/T Charger. It's the car, gear, rear end, all lighter, leaner, better, more tactile than the Charger was.
383 and 440, both great engines.
I'd like to see a 383 equipped in a similar manner as a 375HP/396 and see what kind of output the 383 would make.
Aluminum intake as well...the 375/396 had a solid cam and the big square port heads
I'd like to see a 383 equipped in a similar manner as a 375HP/396 and see what kind of output the 383 would make.
Here's some good reading from an expert. RIP Paul.
Another gem.Thanks, that was a great thread.
That was a very good read.
I miss him on FABO, he also did threads he called "match race" where he paired 2 musclecars from back in the day in a play by play style race. They were great. Paul was a racer from back in the day, and he made learning about that era so much fun.That was a very good read.