[joes455]

Had a set of custom intake valves made by Rev.Eng has maybe 500 miles.Spoke with Gus at Rev and he said tips were hardened, I beg to differ.I took pics of the the valves installed,exhaust were perfect.Running Yella terra shaft rockers.Gus is slow in getting back with me ,last conversation as of yesterday he was looking at my job order .What's everyones thought ?

[PontiacHO]

Curious myself. Wondering if pushrod length may be a factor?

[steve25]

For some reason all of your valves that show ware also have an unneeded chamfer on their edge.

I am wondering why?

[joes455]

Steve ,the only valves that were custom are the intakes and yes they did come chamfered.The exhaust are ferrea.

[Formulas]

the bow tie effect is simply the valve rotating a bit each way.

here is pics two valves after a short run in one didn't turn the other did

unless you have divots, pits or missing / flaking material at the valve tips your good

[joes455]

Formula,did you look at the pics zoomed in?

[Formulas]

Yes i did expand the pics detail's of the head surface are more in focus than valve tips... carry on

[mgarblik]

If your concerned the intake tips are not hardened, you can run 1/2 set of lash caps. While I personally hate them, it would be an easy and inexpensive way to solve a problem. The only type I will use are ones trapped by recessed keepers. So you would need to buy some small parts. Comp for sure has that style and other brands likely do as well.

[joes455]

Yes I was thinking lash caps, but could be a problem with hyd roller cam.

[Schurkey]

IF the valve tips are worn, you'd better check for wear on the rocker arms, too. Kinda guessing that worn-out rockers are why you have worn valve tips. But I've been wrong before.

[joes455]

Roller are perfect,I'm willing to use lashcaps I have the 10° retainers and special pockets keepers that lashcaps sit in,but hesitant due to having hyd roller cam.Won't these lash caps get loose?

[54nomore]

Originally Posted by joes455

Roller are perfect,I'm willing to use lashcaps I have the 10° retainers and special pockets keepers that lashcaps sit in,but hesitant due to having hyd roller cam.Won't these lash caps get loose?

I can't picture a scenario where they would get loose, unless you're planning on floating the valves. The fact that you're running a hydraulic cam should ensure that there is never any actual "lash".

[steve25]

With the proper retainers I would not hesitate to use them.

[joes455]

Fwiw seat pressure 140lb @1.850 IH,428@.650 lift.Cam is old faithful with 1.65 rocker ratio=627 lift

[67Fbird]

Since your rollers are fine yeah I would move on to lashcaps n keepers provided you have/can get a combo to works together. That chamfer is you friend here in considering caps. My simple OEM stuff started getting weird to make all the numbers fit and have clearance when I put it together. Ended up with +.050 locks and XYZ retainers, ABC pushrod length....etc to get everything NICE.