been a very busy summer and now I finally got a change to start posting my hs-40 build. the engine was originally a snow blower motor and for some reason the ID tag on this one was missing. from what info I have found on how Tecumseh made things and change things in the early hs-motors this engine appears to be around a late 68 to 1969.
at first there was no attention to do anything to this engine. I was just pulling it off of my shelf to look at the mag and points setup and to see how I could modifly it for another person engine I was helping to build. after getting into the block and all I notes right away there was no real run time on this engine and the inside was in very good condition.
my first option was to go with a NOS wiseco 2 ring piston for a standard bore.
and then at the last minute I found a newer style .020 over hs-40 piston that use the thinner style rings and I new right away i'm going with that...:thumbsup:
here is another reason why I wanted to stay away from the vintage pistons. see in the picture of the stock hs-40 next to a ohh-piston with the thinner rings. my opinion i'm not a big fan running the thick style rings for a performance application.
yes this engine is going to rev to the moon. well maybe not that high....
at first there was no attention to do anything to this engine. I was just pulling it off of my shelf to look at the mag and points setup and to see how I could modifly it for another person engine I was helping to build. after getting into the block and all I notes right away there was no real run time on this engine and the inside was in very good condition.
my first option was to go with a NOS wiseco 2 ring piston for a standard bore.
and then at the last minute I found a newer style .020 over hs-40 piston that use the thinner style rings and I new right away i'm going with that...:thumbsup:
here is another reason why I wanted to stay away from the vintage pistons. see in the picture of the stock hs-40 next to a ohh-piston with the thinner rings. my opinion i'm not a big fan running the thick style rings for a performance application.
yes this engine is going to rev to the moon. well maybe not that high....
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