can some someone tell the differnence between a B&S intek 18.5 31P707-0123-E1 ENGINE AND A B&S INTEK 19.5 HS 31P677-0804-B1 ENGINE. I KNOW THE HORSERPOWER IS DIFFERENT BUT WHAT BOUT SHAFT AND BOLT PATTERNS
can some someone tell the differnence between a B&S intek 18.5 31P707-0123-E1 ENGINE AND A B&S INTEK 19.5 HS 31P677-0804-B1 ENGINE. I KNOW THE HORSERPOWER IS DIFFERENT BUT WHAT BOUT SHAFT AND BOLT PATTERNS
Cranks are the same and bolt pattern should be the same but sumps are different due to 1 having an oil filter and the other without.
Horse power means nothing as its just a sticker.
Possible differences could be different camshaft, different carb, different jet in the carb, among cosmetic differences. After the horsepower lawsuit, engine builders are required to change a component to list it at a different horsepower.
