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?

#31297
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    quote 1946Zephyr:

    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.

    I got that from your previous quote and is much appreciated.

    I’d like to compare the two.

    I may be limited at 35 to keep the cowlings I want.