Intake Manifold Questions?
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 792
Likes: 1
From: Louisiana, It's Always Party Time!
Intake Manifold Questions?
1) Is the stock intake manifold on a 1980 L48 aluminum or cast Iron?
2) What is the best way to clean (remove grease, stains, paint, etc.) the manifold up, assuming it is off the engine? (I'm thinking blasting it, but what type of media?)
3) Once the manifold is off the engine, is it worth the effort to clean it up or should I purchase an Eldebrock 2101 or 3701 manifold and stick it on? (Engine is non-numbers matching)
4) If I go the Eldebrock route, will I get any performance increase out of a relatively stock engine (just true duals at this point.)
Thanks for all replys!
Jay
2) What is the best way to clean (remove grease, stains, paint, etc.) the manifold up, assuming it is off the engine? (I'm thinking blasting it, but what type of media?)
3) Once the manifold is off the engine, is it worth the effort to clean it up or should I purchase an Eldebrock 2101 or 3701 manifold and stick it on? (Engine is non-numbers matching)
4) If I go the Eldebrock route, will I get any performance increase out of a relatively stock engine (just true duals at this point.)
Thanks for all replys!
Jay
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
Originally Posted by LABulldog
If I go the Eldebrock route, will I get any performance increase out of a relatively stock engine
I have the 2010 and diddnt see any increase but it allows me to run either a QJet or a Holley as it has the dual pattern.
As far a cleaning aluminum I use Mothers Mag and Aluminum Polish
Nevr-Dull works very good as well
Last edited by Bob Onit; Sep 28, 2006 at 12:24 AM.
Le Mans Master
Joined: Mar 2004
Posts: 7,502
Likes: 1,510
From: Little Rock AR
All the intakes are aluminum for '80 Vettes. The castings look pretty bad from the factory so they don't clean up that well. Just degrease with simple green, strip off the paint and refinish with several light dustings of argent silver high temp spray paint. That is about as good as it gets.
The Edelbrock Performer is not worth the expense. Keep the stocker unless you are going square bore carb. The Performer RPM might be better but fitting it under the hood can be a little tricky.
-Mark.
The Edelbrock Performer is not worth the expense. Keep the stocker unless you are going square bore carb. The Performer RPM might be better but fitting it under the hood can be a little tricky.
-Mark.
Burning Brakes
Joined: Aug 2006
Posts: 1,155
Likes: 0
From: San Diego California
the 1980 vette engines, including the "federal" L48 switched to the aluminum intake manifold from the L82. i agree that simple green and a good brush, followed by mothers polish would clean it up. for a stock L48, i doubt there would be any real measurable increase in power with the edelbrock. save that for when tou swap the cam and heads. good luck.]
Instructor
Joined: Feb 2006
Posts: 105
Likes: 0
From: Houston Texas
I replaced my factory 76 L82 manifold with the Edelbrock Performer 3701 and the car seemed more responsive and peppy. Hard to pinpoint how much was due to the manifold because the factory setup had bad gaskets and the old QJet was tired.
