Home Forums Tech Talk Understanding SKUSA Tech…

This topic contains 4 replies, has 3 voices, and was last updated by  Jason 2 years ago.

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    Troy V Smith

    Hey All – the new forum! Looks good!

    I am getting to where I need to become more familiar with SKUSA Tech in Stock Honda and I have a couple questions.

    As I understand it, the CCV inspection using the LAD plug is no longer done? I am still curious as to what at least an “average” CCV reading should be with a stock Honda? I understand the CCV test has been replaced by the Shockwave profile gauge? Where can one “acquire” one of these to check my heads?

    SKUSA also states that the cylinder length (for a 99) should be 3.11-3.16. Where and how exactly is this measurement taken?

    One last question – I states that in the event of pre-sealing motors, that one cylinder stud and one head stud/nut should be drilled for the seal. I understand the purpose and why, but I do not have enough “stud” above the nut for drilling? I could drill both the stud and nut, but I wouldn’t think it would ever line up right after disassembly? What’s the best way to do this?

    Not asking the questions to “skirt” the rules, but I do find myself buying used parts to keep this thing going – just want to make sure everything is within spec.

    Thanks all…


    Ken Schilling

    SKUSA offers pre-drilled nuts for sale at their events.


    Troy V Smith

    Thanks Ken, but what good is a drilled nut if it isn’t orientated the same way your stud is drilled?


    Ken Schilling


    The SKUSA pre-drilled studs, available only at the track (not the online store), are relatively tall with the seal wire hole at the top of them so the seal wire doesn’t go through the stud, only the nut, so orientation is not an issue.

    Follow this link for more info:




    <span style=”color: #444444; font-family: Arial, Helvetica, serif; font-size: 12px; line-height: 21px; background-color: #efefef;”>SKUSA also states that the cylinder length (for a 99) should be 3.11-3.16. Where and how exactly is this measurement taken?</span>

    My observation in past technical tear downs regarding the cylinder height rule, the tech measures the height of the cylinder in multiple locations using a digital caliper.

    Contact SKUSA directly regarding the Head Tech Tool.


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