Heymow - Lawnmower Racing Forum
Engine Help => Briggs Flathead => Topic started by: conntech14 on February 06, 2021, 04:48:33 pm
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hello i was wondering if anyone knew a place i could find the dimensions of Briggs and Stratton parts for the opposed twin series of engines. i have heard you people on this forum are experts on these engines.
thanks,
conntech 14
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What kind of dimensions are you looking for? The service manuals have most everything you will need.
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bore size, depth, outside dimensions of the heads, i was considering to custom machine a new head.
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All the bores are the same, almost. There are a few 46ci blocks that are larger bore but they are rare. The strokes are different, there are 3 different ones, 40ci, 42ci, and 46ci. The piston pin height is all the same, the difference is made up in rod length. The 40ci has a closed chambered head (small cc) the 42ci is a little bigger and the 46ci is the biggest.
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bore size, depth, outside dimensions of the heads, i was considering to custom machine a new head.
I'd say if you have the skills to machine a new set of heads,you probably should have the skills to do some measuring on the engine their going on.
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oh, i wouldnt machining them myself. i would have someone else do it after i designed them, however the weather heres cold and i dont have a heated garage... yet. but yeah good point i could just go and measure it myself...haha