Main Bolt/Drilling Question


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By Oldmics - 15 Years Ago
Gentlemen

Can someone tell me how much additional material needs to be drilled to sink the main cap bolts deeper.

I have heard of this being done to prevent the webbing from cracking.

Also what did you use for new main bolts,regular grade 8?

Thanks,Oldmics

By DANIEL TINDER - 15 Years Ago
From J. Mummert's YBM article:



Use 27/64" bit. Overall depth 1.40"-1.45" (MAX!). ARP bolts (studs for racing). Thread tap: 1/2"-13 t.p.i.
By Oldmics - 15 Years Ago
Perfect SmileSmileSmile

Thank you Dan

Oldmics