Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Rocker contacting top of retainer on vortec heads
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Old 01-10-2013, 12:35 PM
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Quote:
Originally Posted by flyingputz View Post
I don't mean to beat a dead horse, but here's my dilemma. I thought I had this ALL figured out. I've got the #906 vortec heads, Comp 26918 springs(recommended installed height 1.80") 787 retainers and +.050 locks. This gave me my necessary height and retainer to seal clearance, with NO machining. I don't like the idea of taking away that much material from the guides and seat, especially since the guide is ALSO the spring locator. I don't even know if ANY material can be taken away from seat to increase installed height? Now my rockers are contacting on many of the retainers. If I put the standard locks in place plenty of valve tip is available, however, that takes away my retainer to seal clearance AND increases my seat pressure to approx. 144 lbs. I feel my only option is +.100 longer valves. I will take up any extra height with -.050 locks OR shims. I know I'll have to keep the geometry correct at final assembly via pushrods. BTW, cam is 222-230 dur. .509/.528 lift @ .050 with 1.5 rockers. I'll be using Comp 1.52 rollers(self aligning). Screw in studs are already in place. As stated, I already have ALL these parts. Any thoughts or suggestions greatly appreciated.
your seat pressure is of little significance here, what is your open pressure? If you have enough clearance between your retainer and seal with standard locks at peak lift then your best solution (and the free one) is to just use standard locks. I'm betting the .050" difference on the compressed height and pressure of your spring isn't going to make a bit of difference (provided you have clearance).

I hate to say this but the $240 you just spent on valves was over nothing.
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