Join Date: Aug 1998
Location: Waldorf Md. USA
Re: single valve springs or double
Look at the hole in the head that the pushrod passes through. If it is a round hole that is considerably larger than the pushrod, then you will need guideplates. If the hole is oblong shaped and fits the pushrod pretty snug, then it is the factory type setup and will not need a guideplate. If it is the second, factory type deal and you try to use a guide plate without opening the hole up, it will put the pushrod in a bind and wear through it.
As far as the pictures go, when you make a response to the thread, use the "post reply" button at the top instead of the "quick reply" button. Then below the box that you type your resonse in, you will see a section that says "manage attachments" ... that is where you can post your pictures. A picture straight down like the one John posted but WITHOUT the rocker arms, would tell the story.
As far as the springs go, the Comp catalog shows one of the acceptable springs being the 981 which is a small single spring similar to the factory Z-28 spring so you should be ok with your single springs.
Advanced Automotive Machine
1971 Chevelle "Heavy Chevy" original owner
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