KE4AVB wrote:I agree it is a pain when Joe shade tree does the engine shroud swap and doesn't transfer the old numbers...
As for the opposed engine I have seen the same model and type number have at least three hp ratings 18.5, 19.5, and 20.5 on Craftsman mowers. I actually had all three at the same time on the service yard which had me double checking the numbers. All three were the exact same engine down to the factory code. This is what Briggs got in to trouble about on the hp ratings.
The 42 and 46 had the same bore so they must have been stroked differently to make up the extra 4 cubic inches on the 46.
Thanks for the heads up on the Briggs HP engine ratings vs model numbers.
Probably quite a few of those engines with different HP labels on the air cowling use same parts and have same CC's.