C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

big block in a c4

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Old Jun 26, 2007 | 08:04 PM
  #21  
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thats the one!
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Old Jun 26, 2007 | 08:13 PM
  #22  
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Son-of-a-gun. I tought a big block would not fit in a C4. About a Chevy 572?
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Old Jun 27, 2007 | 02:47 AM
  #23  
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Originally Posted by PLRX
About a Chevy 572?
Unless you have about $12k to spend. I'd get a 454 and stroke it to a 496. A guy at the shop recently rebuilt his tired old 454 into a healthy 496 for about $3k and change. Its gonna be a very nice torquey off-roading motor in a K5 Blazer.
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Old Jun 27, 2007 | 05:22 PM
  #24  
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This will be my next mod

I'm thinkin,,,, HEMI!

Might as well go all the way!
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Old Jun 27, 2007 | 05:54 PM
  #25  
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a late model 8L out of a truck would be nice, especially with the fuel injection setup.

don't forget the C6Z06 7liter complete with drysump oiling, TI connecting rods would fit as well.
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Old Jun 27, 2007 | 06:37 PM
  #26  
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Originally Posted by BrianCunningham
a late model 8L out of a truck would be nice, especially with the fuel injection setup.

don't forget the C6Z06 7liter complete with drysump oiling, TI connecting rods would fit as well.
Imagine it in a ZR1 chassis.
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Old Jun 27, 2007 | 08:44 PM
  #27  
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Or maybe a tall deck LSX block bored and stroked to the max, 512 cubic inches of LSX power.

There's a vid of a 449 c.i. LS2 powered C5 on youtube... 600 rwhp N/A!!!
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Old Jun 28, 2007 | 10:55 AM
  #28  
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Sounds like alot of trouble and time, when it would be must easier to use a 454 sbc

http://www.ohiocrank.com/enginekits.html
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Old Jun 28, 2007 | 12:10 PM
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BBCs fit pretty good in a C4. The bellhousing layout is the same as a SB. The motor mount locations too. There are a couple more similarities. A SB distributor will fit a BB.
Plugs are pretty easy to get to. The back on one the pass side is a pain. Theres some clearance issues around the evap box, depending on the type of headers.
I dont think a tall deck would fit. But that shouldnt be an issue, as you can go as big as 572 or 588 with a big bore aftermarket standard deck block.
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Old Jun 28, 2007 | 12:34 PM
  #30  
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Originally Posted by js292
Sounds like alot of trouble and time, when it would be must easier to use a 454 sbc

http://www.ohiocrank.com/enginekits.html

Without Forced Induction, I dont see how more cubes would benefit the 23-degree head.

A better option would be the SB2 18 degree setup, IMHO
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Old Jun 28, 2007 | 03:52 PM
  #31  
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@ edcmat-l1: Dear LORD that thing is behemoth !
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Old Jun 28, 2007 | 04:34 PM
  #32  
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572 in a C4.

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Old Jun 28, 2007 | 04:39 PM
  #33  
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Old Jun 28, 2007 | 04:41 PM
  #34  
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Old Jun 29, 2007 | 10:12 AM
  #35  
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AAAHHH, Guidos ride!!^^^^
Looks like he had to do the evap thingy too....
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Old Jun 29, 2007 | 10:15 AM
  #36  
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Originally Posted by LD85
Without Forced Induction, I dont see how more cubes would benefit the 23-degree head.

A better option would be the SB2 18 degree setup, IMHO
This is true. With the standard head config, you're limiting the output due to nothing more than an airflow issue.
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Old Jun 29, 2007 | 11:17 PM
  #37  
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Originally Posted by LD85
This will be my next mod

I'm thinkin,,,, HEMI!

Might as well go all the way!
Sonny Leonard semi-hemi for BBC




http://www.sonnysracingengines.com/p...eads/hemi.html
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Old Jun 30, 2007 | 05:54 PM
  #38  
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Seen the price tag on those things^^^^?
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Old Jul 2, 2007 | 09:53 PM
  #39  
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Internally balance the engine,you can use a small damper in the front.
I could not find the headers,for the swap.The distributor will be a problem also
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Old Jul 3, 2007 | 10:41 PM
  #40  
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Plugs are easier to change than in my lt1 trans am.... except for #2 plug... I have a tall deck 532 with a centrifigal supercharger in my 1991 C4, M6... piece of cake...here are some pictures:

http://new.photos.yahoo.com/tonyntam...60762378937496

Last edited by TONYDEE64; Jul 3, 2007 at 10:45 PM.
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