Square bore on a spread bore?
07-25-2005 | 07:30 PM
#1
Thread Starter
Registered
Joined: Jul 2004
Posts: 11,332
Likes: 73
From: chicago
Square bore on a spread bore?
Here is my setup.
454 420 hp engines
Factory Merc 365 aluminum intakes which have the dual bolt pattern in them.
Holley 800 double pumpers
I am rebuilding the carbs because of blown power valves.
My question is, am I ok running these intakes or should I ditch them for true square bore intake suck as the Edelbrock Air Gap or similar? I just bought the boat so I cant say how it ran before with the stock merc intakes. Thanks
454 420 hp engines
Factory Merc 365 aluminum intakes which have the dual bolt pattern in them.
Holley 800 double pumpers
I am rebuilding the carbs because of blown power valves.
My question is, am I ok running these intakes or should I ditch them for true square bore intake suck as the Edelbrock Air Gap or similar? I just bought the boat so I cant say how it ran before with the stock merc intakes. Thanks
07-25-2005 | 10:13 PM
#3
Charter Member #927
Joined: Jan 2001
Posts: 4,834
Likes: 2
From: IN
Re: Square bore on a spread bore?
Actually, I was told by a few engine builders here on the board that the 454 Mag intake is a pretty good intake. Compare it to a Team G dualplane, very similar. I was also told to use an 1 1/2" spacer.
I didn't think the other bolt holes lined up with the Holleys that I put on this winter. (maybe they did and I missed something) I used an 1 1/2" adapter.
I didn't think the other bolt holes lined up with the Holleys that I put on this winter. (maybe they did and I missed something) I used an 1 1/2" adapter.
