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Old 04-22-2019, 08:44 PM
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GoatZillaRacing GoatZillaRacing is offline
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Join Date: Feb 2018
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Originally Posted by GoatZillaRacing View Post
As much as you would think these SpeedMaster heads would just be thrown together, here’s another little fact I found.
The installed height is listed as 1.800 and they actually measured 1.795.
Upon removing the spring cups and noticing different colored shims under them. I measured these and they varied by .005. This means that the assemblers at SpeedMaster measured things too or all the spring installed heights would not have come out at 1.795.
We’re thinking about testing these on our dragster because we have data on that combination and it just so happens that our roller cam setup has an installed height of 1.800 too. Stay Tuned!
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1964 GTO "GoatZilla"
1964 GTO "Injunuity" A/FX Nostalgia Super Stock
220" Rear Engine Pontiac Powered Dragster
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