>>>*Problem is simple. The shafts are unique left to right. The lube holes align with the spacing for the rockers.
If rotated upside down, it puts the oil holes on the wrong side of the arm, cuts oil flow to the arm, cam dies in short order...(I know, that is how "their" camshafts become "MY" camshafts again...*LOL**)
One side can be reversed, OOPS. Yep, now we oil the top of the head nicely. Some aftermarket shafts can be installed upside down, I know about that one too, gets me angry phone calls and they become "Mine" again.
*Worked great on the old 272" Fords, dang, I didn't realize how old Yodaddy is....
*Funner ones is the head rebuilder who sticks a .060" thick shim under the valve spring to "compensate" for the valve grind and spring heat set...
*That works nice...to get the cam and rockers in about 500 miles...The email ALWAYS says, "YOUR cam failed in only...(add mileage here) I am thinking of sending this out as a form letter to save time..There are a lot of good machine shops out there, but there sure are a lot of....*Uhhhh...
I am thinking of writing a tech article called "DON'T"....
Maybe post it on the website...? Maybe here, too?...
Oh heck, fishing is calling, getting close to SPRING CHINOOK!!..
Yo! Time for a vacation, come on out! Darin and I will let you row...(Bring the wife...)....heehee..
*K...I get it in the neck for this one, right?..One more week of mayhem and I am OUTA here...going on vacation for 10 days...I will worry about the dang cheap dollar to Japan and Europe when I get back...*Assuming I come back...*LOL**.....*EB