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Quick 470 Question for eddie

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Running hotcams - with motor together but not in the bike yet - piston to head clearance is 0.050" (1.29mm) does that sound about right, or is it a bit tight for the hotcam setup ?

Thanks

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Hi,

Sorry - Your spacer.

JE - piston supplied by yourself (3 ring)

Hotcams 2 - 107 / 104 lobe centers

The gaskets is the problem - from the looks of it the builder seems to have used 1 either side of the spacer.

Hence the reason I took the piston to head clearance to see whether you would be able to tell from that if the comp will be low enough to run pump fuel (95 oct)

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too tight for sure especially with those cams.

with that set up you want .060" minimum and preferably .070" to keep it from detonating and pushing head gaskets.

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