gasket matching
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Senior User
Joined: Jan 2004
Posts: 163
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From: Moose Jaw, Saskatchewan
sorry for the delay,it's a 351w with edelbrock streetmaster intake,and it's the intake that looks abit restrictive,they are L shaped but have enough material to make them square it just protrudes into the coolant passage .
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Senior User
Joined: Jan 2004
Posts: 163
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From: Moose Jaw, Saskatchewan
I whent back and measured the coolant passages on the head and intake and their the same size,are their anymore passages I can inlarge to help run the engine a bit cooler,will I run into an overcooling problem,and is their a real concern about overcooling.
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
As long as your thermostat is working it would be pretty hard to over cool it. Maybe one of the small block gurus can jump in on this here. I have only rebuilt a couple. A quality waterpump will eliminate some small cooling issues if you have them. Then it moves on to a bigger rad, fan etc.. I have never heard of changing passage sizes but there maybe some benefits known out there.
Elder User
Joined: Dec 2002
Posts: 649
Likes: 1
From: Monterey bay area
As long as you run a thermostat in cooler weather...you can never really overcool a small block.....most radiators and fan systems are evenly matched with the heat output of the engine....
Larger fans, larger radiators, thermal dispersant coatings, too cool of thermostat in cool weather can cause overcooling...
If you drive in hot weather....then the more cooling, the better....
The only time you should clean up the coolant passages is when too much flashing is present.....or when calcification is present....use a mild burr to clean it up.....then use a semi abrasive mini pad to micropolish the surface to keep build up at bay....
Other than that.....the L shape coolant port should tranfer coolant pretty well.....we are afterall not talking about pressures exceeding 40psi....
The ports i'd be eyeballing are the intake ports......but that's just me....
Larger fans, larger radiators, thermal dispersant coatings, too cool of thermostat in cool weather can cause overcooling...
If you drive in hot weather....then the more cooling, the better....
The only time you should clean up the coolant passages is when too much flashing is present.....or when calcification is present....use a mild burr to clean it up.....then use a semi abrasive mini pad to micropolish the surface to keep build up at bay....
Other than that.....the L shape coolant port should tranfer coolant pretty well.....we are afterall not talking about pressures exceeding 40psi....
The ports i'd be eyeballing are the intake ports......but that's just me....
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Senior User
Joined: Jan 2004
Posts: 163
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From: Moose Jaw, Saskatchewan
the intake ports were the first ones I eyebald,I just thought seeings how I was doing the ports I'd check into the coolant ports.I'm going to gasket match the intake ports.
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