They were 7mm 1.0 pitch about 2" long. Got them at Lowes. Slightly shorter would have worked but that was the length they had there. They only have to be about 1/2" longer than the actual bolts. When drawing down the upper head it is important to alternately and evenly tighten the bolts just a very little bit at time so that not to much pull is applied to any one bolt. I set the rear cam seal (there is only one and its on the exhaust side) in place before setting down the upper head. This avoided the difficult job of trying to push it in afterwards.
Are contemplating this job?
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David Hunter
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