what to bore for a piston
Posted: November 21st, 2009, 4:41 pm
if I am boring for an 89.5 piston, what measurement?
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what to bore for a piston
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Posted: November 21st, 2009, 5:55 pm
You pretty well have to have the piston and measure it. I know Vertex has the actual piston diameter stamped on top of it. It was 89.44mm or 3.5211", add your clearance to that to get your bore. I doubt if a Vertex 89.5mm is the exact size as a Wiseco or OEM.
Posted: November 21st, 2009, 7:45 pm
yep. first rule everyone should know when dealing with any kind of engine.robertg wrote:You pretty well have to have the piston and measure it.
Posted: November 22nd, 2009, 1:35 pm
how much clearance with cast?
Posted: November 22nd, 2009, 1:59 pm
0.0027" to 0.0041", service limit is 0.005".
Posted: November 23rd, 2009, 6:39 am
loose is fast