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

Please help.....

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Old Nov 8, 2001 | 03:48 PM
  #1  
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Default Please help.....

What CC are the original l98 heads on an 89. They are 68 cc right? Thanks for the help on a stupid question.
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Old Nov 8, 2001 | 03:53 PM
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I thought 58cc, but I dunno.
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Old Nov 8, 2001 | 04:03 PM
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Default Re: Please help..... (ski_dwn_it)

production tolerance is 58 minimum... yeah its 58
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Old Nov 8, 2001 | 08:05 PM
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Default Re: Please help..... (White Lightning 89)

Did I screw up when I just ordered my heads? They are gonna be AFR 190 68cc....Boy I hope not. Please advise so I can have it corrected....Thanks.
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Old Nov 9, 2001 | 12:07 PM
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Default Re: Please help..... (ski_dwn_it)

stock heads on 89 are 58cc with your new heads your compresson will be low enough to run on 87 octane :D
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Old Nov 9, 2001 | 12:17 PM
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Default Re: Please help..... (black bart)

Give a call to who you ordered them from. AFR will cut them down to 56cc. That and a FEL-1010 willget you back where you want to be.
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Old Nov 9, 2001 | 12:33 PM
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Default Re: Please help..... (ZylaRace)

I got ahold of the guy before he called AFR to place the order. They will be milled down to 58cc. Everything should be OK now. Thank god. Thats a lot of cash for the wrong thing. Thanks.
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