I think there is only generally two Briggs patterns. One for push mower engine and one for the larger riders. I compared the 09P OHV to a 122M L-head (side valve) and both of their three patterns match each other on a 8" circle. But don't appear to match the HF Pedator engine that I posted a diagram of.
NormK try to get vendor send you measurement diagram like the one I posted so you can compare. I don't think it even come close without drilling new mounting holes.
