|11-15-2004 01:31 PM|
Where he to have a lot higher lift and longer duration in his cam, I would have recommended more clearance on the clay measuring. I do agree that probably .100" should be the minimum under usual circumstances.
|11-15-2004 09:16 AM|
|machine shop tom||
Re: valve clearance
However for your application, your lift, duration, and timing events tell that you will have no problems, unless you install the timing components incorrectly.
|11-14-2004 10:23 PM|
|lluciano77||You won't have any problems with that cam.|
|11-14-2004 08:34 PM|
When you clay the pistons to get an imprint of the valve, measure the imprint with a micrometer and you should have a minimum of .050" thickness. Anything thinner could translate to eventual valve/piston clash if your valves should happen to float.
At higher RPM your valves can actually stay open at max lift for a longer period of time as the lifter may actually come off the lobe when it hits the return side of the lobe. when this happens, thats when you could wind up with a valve coming in contact with a piston. Just be sure you have the correct tension springs for your cam and dont try over revving it; turnging it higher than the grinders recommended rpm range.
|11-14-2004 07:47 PM|
|BOBCRMAN@aol.com||At .465 lift you should have plenty of room... BUT check it with a piece of clay,, just to be sure!!|
|11-14-2004 07:42 PM|
Piston to valve clearance
I will check the archives for information later on but can any one tell me offhand if piston to valve clearance will be a concern in this application. 327 bored .40, resurfaced deck, .100 domed pistons, .465 lift cam, Edelbrock RPM heads, 70 cc chambers, 170 runners. I'm not sure what the piston to deck distance is. Thank you, awesome amount of great info on this site.