roller rockers
Thread Starter
Intermediate
Joined: Dec 2011
Posts: 27
Likes: 0
From: philadelphia pa
roller rockers
i have a 1969 corvette 350/350hp. motor. it is re-built and balenced with 30 over 11.1/2 to1 forged pistons forged rods and steal crank. the heads are stock but fresh and still have the studs ..i installed a 480 lift comp cam after the break in with new lifters.. now i adjusted the stock rockers and they look like ther alittle sidways to me..i am being told i need to install roller rockers wich i dont mind but now the qwestion is do i need self eligning or no??? anyone no anything about this sorta thing????/
Thread Starter
Intermediate
Joined: Dec 2011
Posts: 27
Likes: 0
From: philadelphia pa
Thread Starter
Intermediate
Joined: Dec 2011
Posts: 27
Likes: 0
From: philadelphia pa
motor was redone to mach its origanal state plus 30 over it is a block and heads maching set to a 69 corvette 350/350hp after i broke the motor in i didnt like that it had no hoppity hop so i took out cam and added the 480 i used one in a dif motor cupple weeks ago and it sounds grait..
Le Mans Master
Joined: May 2002
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From: Lebanon Township New Jersey
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Le Mans Master
Joined: Jun 2004
Posts: 6,231
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From: Seattle WA
St. Jude Donor '14
A picture would be worth a thousand words here. 
Guideplates aren't required with stock rockers, but if there's an alignment problem then I wonder if the shop enlarged the pushrod holes for some reason...? Regardless, if the stock rockers are seriously cockeyed, putting on roller rockers isn't going to help.
Pressed studs should be replaced with screw-in studs if the heads were hot-tanked.
Guideplates aren't required with stock rockers, but if there's an alignment problem then I wonder if the shop enlarged the pushrod holes for some reason...? Regardless, if the stock rockers are seriously cockeyed, putting on roller rockers isn't going to help.
Pressed studs should be replaced with screw-in studs if the heads were hot-tanked.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 121
From: Millington Illinois
St. Jude Donor '08-'09
I had studs pull out before from a high lift cam. Lifter popped out of the bore, oil pressure went to 0 and it spun the bearings in the bottom end. We used to drill and pin them but your best bet is to pull the studs, thread the holes and install screw in studs with guide plates.
Thread Starter
Intermediate
Joined: Dec 2011
Posts: 27
Likes: 0
From: philadelphia pa
I had studs pull out before from a high lift cam. Lifter popped out of the bore, oil pressure went to 0 and it spun the bearings in the bottom end. We used to drill and pin them but your best bet is to pull the studs, thread the holes and install screw in studs with guide plates.