Head stud problem on 400/416ex

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Feb 3, 2005 | 01:00 AM

EAB

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Head stud problem on 400/416ex

Has anybody had any problems with the head studs pulling out after doing a 416 kit? This 416 is about 11:1 with a stage 2 cam.

Feb 5, 2005 | 04:02 AM

cals400ex

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Head stud problem on 400/416ex

with 11:1, i wouldn't mess with them until you have problems.

Feb 6, 2005 | 09:15 PM

EAB

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Head stud problem on 400/416ex

Boom, twice.

Feb 7, 2005 | 12:16 AM

TractorPacker

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Do you have a balloon?

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Head stud problem on 400/416ex

I have an 11:1 87mm piston in mine. I haven't had any problems. I know it is a possibility, though.

Feb 9, 2005 | 07:12 PM

Hondaracer161

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Head stud problem on 400/416ex

I was blowing head gaskets with the stock studs on my 416 installed oversized studs from east coast atv haven't had a problem since

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