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GoFast!
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263 Posts
Discussion Starter #1
Seeing as how I'm going to get some headwork done this winter, I'd like to get the squish right. I checked the squish with some solder, both cyls indicate .052" on the carb side, and about .054" on the plug side. The base gasket is .016" compressed, and the HG is .038" compressed, even though the manual states .043" compressed. If we add the base and head gaskets, thats .054" which means I would have 0" deck height with no base gasket. So, if I put in a .010" base gasket and a .030" HG, the squish would be around .040". My questions are, is the .010" gonna have a good seal? These Cometics .010 and .030s, is that their crushed thickness? Is .040" good enough or should I get the cyls machined to get .030"?
 

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IronButt
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6,364 Posts
You look to have 0 tdc with the base gasket in place then you work from there on a 124 I would set squish at .035-.040 range on a street engine
 

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GoFast!
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263 Posts
Discussion Starter #4
Great, thanks guys! Since Cometic makes a .036" HG, I'll take .020" off the jugs, put in a mls .020" base gasket, and the .036" mls head gasket. They only list TP 4.125" stuff, but told me they will work on my S&S. I hope they're right.
 
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