Engine identification help please. Appreciate any help possible.

[BigBoyToys]

Engine identification help please.
Can you possibly identify these 2 separate engine numbers for me?

1) HS40 55276B Ser#9345 12165

2) HS40 55276B Ser#0232 02201

Greatly appreciate any help possible. Thank You. Greg

 

[bikebudy]

Can you give a photo of each shroud / engine

 

[markus]

With those numbers, they should be a late 1969 and a mid year 1970, both should be outfitted the same way, and I think setup for recreational use with spring return throttle and 3/4" standard shaft (looks that way int he parts listings anyway)----but I would verify that. They will both be later/common HS40 blocks with HS heads, but will have early mechanical compression release cams in them (they technically make more power).

 

[BigBoyToys]

:thumbsup: