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.

 

[lewtot184]

i would invest in the "good stuff" the first time.

 

[68-500]

Geoff that seems way more better as far as spring pressure goes.

 

[PRHeads]

Not what you’re asking, but for applications that will see a fair amount of street miles, I prefer to use cam profiles that will function happily with less than 250 on the seat.

Looks like you have TF heads?
They’ve come out with some nice looking bushed rockers.

 

[70rrclone]

Im open to cam recommendations, I haven't bought the cam lifters and springs yet.