Mercury Cougar Owners banner

1 - 3 of 3 Posts

·
Registered
Joined
·
15 Posts
Discussion Starter #1
I am planning to rebuild my 351W. Are the stock crank and rods strong enough to handle 350 to 400 horsepower?
Thanks.
 

·
Moderator
Joined
·
10,974 Posts
Yes they are capable of perhaps 500 - 600 HP. The pistons are not. You need to get a decent forged piston above 400 or so horsepower.
 
1 - 3 of 3 Posts
Top