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PanelDeland · 05-19-2002, 05:31 PM

I think on the Vortecs you have to have the tops of the valve guides turned down if you run much cam lift.You might check how much clearance you have on that particular rocker arm to guide by turning the engine over by hand with the valve cover off.If the end of the rocker is hitting the top of the valve guide you have found the problem.Don't forget that the lifter may not be at it's full height if it's a hydralic.When it pumps up it may be enough to cause interference.
Also remember that if you are on the edge of clearance there may be a slight difference in the height of the guide casting.

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Deland does Chevys 68Chevy panel(LIZ)
"A man and his truck,it's a beautiful thing"
"I have the body of a god,unfortunately it's Budda"

05-19-2002, 05:31 PM	#4
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,992	I think on the Vortecs you have to have the tops of the valve guides turned down if you run much cam lift.You might check how much clearance you have on that particular rocker arm to guide by turning the engine over by hand with the valve cover off.If the end of the rocker is hitting the top of the valve guide you have found the problem.Don't forget that the lifter may not be at it's full height if it's a hydralic.When it pumps up it may be enough to cause interference. Also remember that if you are on the edge of clearance there may be a slight difference in the height of the guide casting. ------------------ Deland does Chevys 68Chevy panel(LIZ) "A man and his truck,it's a beautiful thing" "I have the body of a god,unfortunately it's Budda" __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"