Intake Manifold Question
Thread Starter
Racer
Joined: Mar 2005
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From: WAY SOUTH OF HEAVEN inebriated
Intake Manifold Question
Hey yall i have a question about my intake.The 454 im dropping in my car i found out is an ls7 not ls6 mine came from factory with aluminum heads learn something new everyday anyways i got the engine from my step dad for 2500$ rebuilt and i checked it out for the first time without the air cleaner and carb on and i noticed the high rise manifold carb mount flange is sitting off center the old guy is off working so i couldnt ask him but normaly the mount is sitting straight ahead with the rest of the battleship what advantage would this have and when its mounted in the car i estimated the carb will stick out of the hood a bit and im going to run a butterfly scoop will my carb sit off center or is there an adapter to line the carb straight again? I know this may sound stupid to those who know but like i always say it might sound stupid to those who know the question but just like a young buck i work with asked me the other day can you weld mild steal to aluminum? 
i didnt make him feel like a jack *** or not reply at all..like my last post i told him why and the steps why it wouldnt work now he knows. 
i didnt make him feel like a jack *** or not reply at all..like my last post i told him why and the steps why it wouldnt work now he knows.
Race Director
Joined: Apr 2000
Posts: 17,676
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From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Is it offcenter or on an angle I have seen some older intakes that put the carb on an angle for some reason, probably it was for better flow but didn't catch on 
Thread Starter
Racer
Joined: Mar 2005
Posts: 306
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From: WAY SOUTH OF HEAVEN inebriated
If you were standing infront of the car looking at the engine and the distributor was 12:00 it looks like the back of the carb would sit around 1:00 and the front of the carb about 7:00 it looks like the top is sitting level my guess would be its for a larger carb so it clears the dist cap ? 
must be a preety big carb if so but than again im still learning so far 75% of what ive learnt about my car is from you guys the one thing i did figure out on my own though is swapping the half shafts and stubs for 1350s rather than the weak 1330 spicer.i have an auto tranny why they put such a weak spicer in who knows but as i see they came to there senses in 82 
must be a preety big carb if so but than again im still learning so far 75% of what ive learnt about my car is from you guys the one thing i did figure out on my own though is swapping the half shafts and stubs for 1350s rather than the weak 1330 spicer.i have an auto tranny why they put such a weak spicer in who knows but as i see they came to there senses in 82
Thread Starter
Racer
Joined: Mar 2005
Posts: 306
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From: WAY SOUTH OF HEAVEN inebriated
That would make sense and it makes it different witch i like thanks for the help motor head ,ganey does anyone know if my carb will sit straight ? oh ya hope you dont mind ive got a picture of your car from behind on my custom screen saver motorhead now i know whos car it is what a sssswwweeeeeeettttt ride ive also got norvals and a couple others i dont know if you remember the quik and short thread i did called whos got the best chick on corvette pictures but a couple of those good ones aswell the perfect screen saver.oh ya that post i did got like 1100 hits 
Last edited by 1980 454; Jul 5, 2005 at 09:58 PM.
Thread Starter
Racer
Joined: Mar 2005
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From: WAY SOUTH OF HEAVEN inebriated
Originally Posted by Ganey
Engine is offset to right for balance w/ driver only.
Carb at an angle on BB intake was to make the combined head & intake port paths more equal length.
Carb at an angle on BB intake was to make the combined head & intake port paths more equal length.
Le Mans Master
Joined: Sep 2003
Posts: 8,812
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From: eastern NC
Is this an aftermarket manifold?
Edelbrock put a significant twist pretty much as you described in the mounting flange of their Torker and Tarantula manifolds back in the early 70's on their BB manifolds. I don't remember any of the Chevy factory manifolds having this feature.
As previously stated it was to provide a better flow from the carb to the intake ports, but I don't recall any test data on the effectiveness of it. If you have an issue with it or feel it will interfere, you can switch to a factory manifold.
GUSTO
Edelbrock put a significant twist pretty much as you described in the mounting flange of their Torker and Tarantula manifolds back in the early 70's on their BB manifolds. I don't remember any of the Chevy factory manifolds having this feature.
As previously stated it was to provide a better flow from the carb to the intake ports, but I don't recall any test data on the effectiveness of it. If you have an issue with it or feel it will interfere, you can switch to a factory manifold.
GUSTO
Thread Starter
Racer
Joined: Mar 2005
Posts: 306
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From: WAY SOUTH OF HEAVEN inebriated
Im not sure if it is an after market or not i couldnt see any logos on it but by the sounds of it its not common witch makes it very valuable to me different is better 
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