Home › Forum › Ask A Member › Differences between ’50’s era 30, 35 and 40 hp big twins? › Re: Differences between ’50’s era 30, 35 and 40 hp big twins?
February 3, 2016 at 6:32 pm
#31296
Well, be careful there, friend, the powerheads from the Super Quiet 40’s wount bolt up to a clamshell style Big Twin. The rear half of the engin mounting is completely different.