Intake help for the Rat
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 1,002
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From: Bay City MI.
Intake help for the Rat
I would like to make my BB look like and function like the L-88, what type of intake will work best? I currently have a GM aluminum high rise intake and would like to change. My heads are rectangular port. Thanks
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Re: Intake help for the Rat (467-Ratman)
I took a LS6 high rise factory intake, ported it extensively to match the heads , machined the divider part way down like the L88' s did and run it with a 850 double pumper carb.
In a effort to inprove the combination I bought a Victor Junior 454 single plane and hated it. I lost power everywhere especially the top end charge to 7500.
The factory intake is better then people give it credit for.
I have the victory junior in the cupboard with a built in cheater nitrous system, the spray bars are imbeded in the intake and the solenoids mount on the intake for short lines and hard hitting.
I would loan it to you to try and if you like it give you a good deal on it. The nitrous must come with it since it is built in. Only thing missing is the bottle.
In a effort to inprove the combination I bought a Victor Junior 454 single plane and hated it. I lost power everywhere especially the top end charge to 7500.
The factory intake is better then people give it credit for.
I have the victory junior in the cupboard with a built in cheater nitrous system, the spray bars are imbeded in the intake and the solenoids mount on the intake for short lines and hard hitting.
I would loan it to you to try and if you like it give you a good deal on it. The nitrous must come with it since it is built in. Only thing missing is the bottle.
Senior Member since 1492
Joined: Aug 2000
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: Intake help for the Rat (467-Ratman)
Buy an L-88 intake on Ebay. They're only about $3-400. :yesnod: Redvetrcr might still have one for sale.
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
Re: Intake help for the Rat (norvalwilhelm)
You can mill down your center divider 3/4" like the factory did and be sure and get a Holley list number #4296 850 double pumper with the proper distribution tabs on the boosters to correct for the milled down divider (the factory did things RIGHT.) The best intake in my humble opinion is a Edelbrock Performer RPM air gap high rise. You absolutley need to run the L-88 hood and PLEASE do not cut out the fresh air plenum to fit a Taiwann aircleaner assembly but get the correct AC base, foam seal, and plenum filter assembly (check with Paragon or other suppliers.) Look on Ebay for deals on intakes and Holley list #4781 850 double pumpers (or buy new Holley/Grant carb if you don't have rebuild skills, you will need to tune so, get book on carb tuning.)
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 1,002
Likes: 0
From: Bay City MI.
Re: Intake help for the Rat (Solid LT1)
Any way to make my existing Holley 850 carb work? Have heard that the rear pumper arm gets in the way with the L-88 base air cleaner?
Race Director
Joined: Nov 2002
Posts: 12,142
Likes: 54
From: Taylor Michigan
Re: Intake help for the Rat (467-Ratman)
Unless you have a solid lifter camshaft, square port intakes and heads with a 850 Holley will not be the correct combination. These are HIGH RPM parts. :D
