Power head

Glwack

Cadet
Joined
Oct 30, 2018
Messages
8
What is the difference between a 1981 4.5 power head and 7 hp power head and are they interchangeable ?
 

Vic.S

Rear Admiral
Joined
May 4, 2004
Messages
4,690
As above

A 4.5 hp is 5.28 cu in

A 7.5 hp is 10.00 cu in ( no such thing as a 1981 7 hp)
 
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