"Old School" Stocker Cams

[Dan Fahey]

Originally Posted by Alan Nyhus

Not even close.

After the valve spring rules were relaxed, stock rockers were mandated for several years. Finally allowing quality after market rocker arms was a common sense rule change.

So now we have Modified Stock....!
Roller Rockers, Mechanical Tappet or Roller Lifters, any Spring Rate,
There is Limited Lift but with unlimited Duration, MassagedHead$$$

More speed means more safety items....
Wheelie Bars, Roll Cages, gutted Interiors, Special Seats, Harnesses.
Beefed up Transmissions Parts, Custom Converters, Deeper gear sets, Micro Polishing, special gasoline. Then you need much better Brakes.

AND everyone tormented me because for pushing Pure Stock !!
That Class was fun and affordable.

[Dwight Southerland]

If the valve spring pressure were reduced, after a period of adjustment there would be no more carnage than allowing roller lifters and it would be a whole lot cheaper for the majority of racers.

Originally Posted by Dwight Southerland

If the valve spring pressure were reduced, after a period of adjustment there would be no more carnage than allowing roller lifters and it would be a whole lot cheaper for the majority of racers.

I’ve seen roller lifters break and destroy engine parts. Flat tappets are usually pretty reliable. You can run roller lifters in SS. Leave them there. Race a stocker in SS with a roller cam then

[Cbrinson47]

Originally Posted by Dwight Southerland

If the valve spring pressure were reduced, after a period of adjustment there would be no more carnage than allowing roller lifters and it would be a whole lot cheaper for the majority of racers.

I would say 150 lbs seat pressure and 350 lbs open pressure max !

Originally Posted by Cbrinson47

I would say 150 lbs seat pressure and 350 lbs open pressure max !

And smart engine builders will get 8000+ RPM out of those pressures.