Rocker arm questions

[70rrclone]

I have another thread about a cam failure the replacement will be a bullet solid roller. The recommended springs are 250-300 seat and 550-600 open pressure. Will mancini 1.6 HS house brand be up to the task? Or should I look at a stainless rocker upgrade. Not speedmaster.......

 

[68-500]

My god thats a lot of spring! Is it a race car or street?

 

[70rrclone]

Street/ strip .. solid roller .667 250/256 @.050
Bullet cam with their recommended springs and morel solid roller lifters.

 

[gkent]

Harland Sharps or T&D.

 

[andyf]

I have another thread about a cam failure the replacement will be a bullet solid roller. The recommended springs are 250-300 seat and 550-600 open pressure. Will mancini 1.6 HS house brand be up to the task? Or should I look at a stainless rocker upgrade. Not speedmaster.......

The Mancini rockers will work okay for a while. If you're racing it then you would want to replace the rockers every 100 passes or so. It would make more sense to use a higher quality rocker arm if you're racing. If is just a toy that you take over to the Burger Barn on Friday night then sure, those rocker arms will work for a number of years.

 

[Geoff 2]

Sol roller cam in 455 Pontiac, 2.2" int valve, Beehive springs, 252 @ 050, .670" lift with 1.65 rockers, 160lb on the seat.