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Reply to "Upgrading from 1776 to 2110?"

The CB 2110 Builder's Choice uses a CB (Eagle) 2246 cam. That cam has 260° dur. @ .050", and lifts .411" at the cam. With 1.25 rockers (which always measure out to be more than 1.25:1), it lifts .514" at the valves. If you look at Panchitos flow numbers, there's almost no difference in flow between .500" and .600" - lifting more just breaks more parts and creates more heat.

For reference, an 86b also has 260° duration @ .050". It has lower cam lift because it's ground to be used with 1.4s. With 1.4s it lifts about .536", which is still within the sweet spot of the Panchitos. The problem is that my CB 1.4 rockers measured 1.47:1, which means .563" of valve lift.

Given Pat's love for long duration cams with Panchitos heads, I may walk back from my comment that the 86b is too much for Mike's perfect engine. Pat is specing a cam very, very similar to the 86b in duration (but not lift) for the 2110 kit.

I don't mind the cam CB selected, because it's very 86b-like, with slightly lower lift using the 1.25s. It plays nicely with the 28 mm lightweight lifters, which are the absolute gold-standard for lifters in my estimation.

Pat knows his parts. This looks like a great combo, but it would need a 1-5/8" Sidewinder and port-matched manifolds to get to 150 hp.

I love it.

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