Bo Dillingham
Well-known member
- Joined
- Jun 23, 2001
- Messages
- 121
- Location
- Cortland, NY, 13045, USA
- Corvette
- 1965 crimson pearl (2002 cadillac?)
It's Sunday afternoon and I just read an article on roller rockers in the recent issue of Vette magazine (for some reason, they sent me a complimentary copy), and proceeded to go to CAC and read about a years worth of discussions from you, the people I trust the most.
The article states that most original GM stamped rockers are more apt to be around 1.47:1 than the 1.5:1 that they are designed to be. It further states that they tested a set of Comp Cam Magnums at 1.52:1 with very good results (3 to 17% HP increases, depending on RPM, etc.)
The article also warns of things like clearance problems, spring binding, and more.
In a response to my question about "rebuiding a 300hp 327" some months ago, Tom Bryant mentioned roller tip rockers, but did not mention a brand name.
Does anyone have some pros or cons regarding rocker upgrades for the 300/327? Can you give me specific brand names and/or models? Does anyone have info on a model that "bolts in" without extensive rework?
As usual, any information or comments will be much appreciated.
Bo
65 convertible.
The article states that most original GM stamped rockers are more apt to be around 1.47:1 than the 1.5:1 that they are designed to be. It further states that they tested a set of Comp Cam Magnums at 1.52:1 with very good results (3 to 17% HP increases, depending on RPM, etc.)
The article also warns of things like clearance problems, spring binding, and more.
In a response to my question about "rebuiding a 300hp 327" some months ago, Tom Bryant mentioned roller tip rockers, but did not mention a brand name.
Does anyone have some pros or cons regarding rocker upgrades for the 300/327? Can you give me specific brand names and/or models? Does anyone have info on a model that "bolts in" without extensive rework?
As usual, any information or comments will be much appreciated.
Bo
65 convertible.