355 build?
Le Mans Master
Joined: Oct 2007
Posts: 7,445
Likes: 971
From: Tennessee/Rhode Island
Not surprised....on the street, lower duration cams are much more real world useful with better TQ than the higher duration cams, in general. Your 355 with a 225/230 duration is just about right, in my opinion, for a typical street 383 and still a bit higher than the way I went back in 2014 on my 355.
I opted for more lift .525 from the roller cam with slightly less duration for max mid range TQ with the AFR 180 heads at 219/225 duration, and like you, I am still completely satisfied that I stayed with my OEM 355 L-82 architecture. With 10.2 compression and my howards roller cam, my motor has strong low end TQ and killer mid range...............pulling hard to 6,000 RPM.
The only cam change I would do after 7 years now with the 355 is I would have gone slightly higher with the lift at .550 or .560 with similar duration since the AFR heads simply are fantastic at max airflow....I probably left a few ponies on the table with .525 lift but I do have instant throttle response with the current setup. All a balance and dance with no free ride.
I opted for more lift .525 from the roller cam with slightly less duration for max mid range TQ with the AFR 180 heads at 219/225 duration, and like you, I am still completely satisfied that I stayed with my OEM 355 L-82 architecture. With 10.2 compression and my howards roller cam, my motor has strong low end TQ and killer mid range...............pulling hard to 6,000 RPM.
The only cam change I would do after 7 years now with the 355 is I would have gone slightly higher with the lift at .550 or .560 with similar duration since the AFR heads simply are fantastic at max airflow....I probably left a few ponies on the table with .525 lift but I do have instant throttle response with the current setup. All a balance and dance with no free ride.
Last edited by jb78L-82; Sep 7, 2021 at 06:55 AM.
