Vortec Head work, fimiliar? come in here
07-19-2005, 04:45 PM
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Vortec Head work, fimiliar? come in here What screw in studs should I go with? I heard something about spring bosses have to be milled down to run guideplates. What should I use? I'm going with 1.6 rockers, 987 comp springs, titanium retainers.
07-19-2005, 11:43 PM
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A worthwhile machine shop will know what needs to be done if you tell them your cam specs, total lift with 1.6 rocker, duration, spring specs, etc. Not sure what a spring boss is but the Valve Guides need to be machined down for added spring lift. Then again, a comp 987-16 spring may use a taller install height, requiring longer valves, etc. Get in good with your machinist.
Others should chime in here.
Others should chime in here.
07-20-2005, 08:32 PM
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The "stud bosses" will need to be trimmed down to make up for the thickness of the guide plates. I would use ARP screw in studs, especially if you are going to have a lot of spring pressure.
07-20-2005, 08:38 PM
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yeah auto roc... I know all about the valvesprings, whats needed and not. I guess I shoulda been more specifin on the topic. But thanks 01tam "stud bosses" I'll let my machinist know, even tho he probably does. should I just stick to my stock thickness stud bolts?