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Old Aug 5, 2005 | 12:59 AM
  #1  
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Default Tall deck Big Block

Will a tall deck fit? Will it clear the brake booster and a/c box?
It's time to step up the power level so I'm gonna go BIG BLOCK
Thanks,
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Old Aug 5, 2005 | 09:34 AM
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Yes it will fit. That's what I have in my 68 with BB hood. Standard valve covers clear the booster and standard exhaust manifolds clear the A/C box (just barely).
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Old Aug 5, 2005 | 09:42 AM
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So would a 572 fit? I would think you'd have to remove the booster. I'd probably want to go to hydroboost anyway.
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Old Aug 5, 2005 | 10:46 AM
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Originally Posted by mayberg
So would a 572 fit? I would think you'd have to remove the booster. I'd probably want to go to hydroboost anyway.
I needed to run a stud girdle and tall valve covers so there was no way a vacuum booster was going to fit. I went hydroboost and anything will clear now.
The taller block needs a special intake, longer distributor and pushes the headers further outboard and possible steering box to header clearance.
Most avoid the tall deck blocks.
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Old Aug 5, 2005 | 11:39 AM
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What is hydroboost?
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Old Aug 5, 2005 | 11:53 AM
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Originally Posted by Vesa
What is hydroboost?
Hydro boost is a hydraulic braking assist that replaces the vacuum unit. The hyroboost runs off the power steering pump. It is an extremely powerful compact unit that comes with diesel trucks and vans. It it cheap at the autowreckers and most of the unites through the 80's and 90's are the same and almost a bolt it fit for our vets.
I provides clearance for tall valve covers and improves braking power.
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Old Aug 5, 2005 | 12:01 PM
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Originally Posted by norvalwilhelm
Hydro boost is a hydraulic braking assist that replaces the vacuum unit. The hyroboost runs off the power steering pump. It is an extremely powerful compact unit that comes with diesel trucks and vans. It it cheap at the autowreckers and most of the unites through the 80's and 90's are the same and almost a bolt it fit for our vets.
I provides clearance for tall valve covers and improves braking power.
Very interesting Any pictures of your setup after hydroboost installed?

Last edited by Vesa; Aug 5, 2005 at 12:03 PM.
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Old Aug 5, 2005 | 12:34 PM
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Std BBC 9.800" deck height and tall deck BBC is 10.200" deck height only 400 thou or less than half an inch.

I considered a 572 with spacers to mount a Ramjet intake but went with the 502.

but a 572R with a 250 shot of nitrous would be WAY cool and be great for scarin ricers and midnight metallurgy experiments

Better yet a 572 with 5-6 lbs of boost from a 6-71 blower....

Dreaming.....
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Old Aug 5, 2005 | 12:54 PM
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Better yet a 632!!

There's one on the Forum going together right now in a '72. It will be a stick shift crosscountry driver with A/C!!!

Cool......guess his weenie little 540 just didn't scare him enough!


JIM
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Old Aug 6, 2005 | 01:22 PM
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try doing a search for tall deck, there are a few threads in the archives
p.s. i must have missed this project with the 632, could you post a link? thanks

Last edited by hubes; Aug 6, 2005 at 01:28 PM.
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Old Aug 6, 2005 | 01:28 PM
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http://forums.corvetteforum.com/show...949&forum_id=3
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Old Aug 6, 2005 | 08:27 PM
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I'm cosidering building a 540bb,but will 600 plus hp be too much for this car??
I already have traction problems now what about breakage of the rear and half shafts??
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Old Aug 6, 2005 | 08:39 PM
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Check out this web site

http://diabolicalperformance.com/c3bigblock.html

Pulled the following from the site..

Do NOT try to use a tall-deck big-block engine. The 0.4” offset screws up your exhaust, brackets, intake manifold, etc. Just don’t do it.
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