You should be okay at 300 lbs spring pressure. Make sure that you have plenty of oil pressure as well as oil flow to the top end.

For a lower speed street engine you might consider grooving the #5 cam journal to provide full time oiling to the top end. You don't want to fill the valve covers up with oil on a race engine, but on a weekend cruiser that doesn't get wound to the redline very often the extra oil can be a good idea.

Thanks Andy.

Having had the lifter bores bushed (bushings drilled w/oil holes), I wonder what difference that makes in regards to the grooving of the cam journal? I imagine it makes available more oil at the mains?

I read a thread where Cab Burge mentions how he meters the oil flow to the heads through carb jets/plugs tapped into the block after he grooves the cam's journal.

Mike at CRE did some oil mods and the cam bearings are installed.

I'm guessing the block will be providing plenty of oil to the heads as it is, without any cam journal grooving.

I deburred the block and smoothed the valley area before shipping it off for machining.

The block came back with the interior painted/coated.

The block is out of the crate, but not on a stand yet

At the spring pressure posted...you won't have any problems without banana grooves or rocker bushings.

They will work fine steel on steel, as long as you do not use any thick, paste-consistancy lubes on the rocker and shaft assy during assembly and do not overtorque (crush) the rocker shafts. Use a liquid type assembly lube only and mind the torque on the hold downs....more is not better....more torque causes galling because it deforms the shaft.

(I have used those rockers at 500lbs open pressure for several years for whatever that's worth, but I have not really put tons of miles on them either)