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

quick stock head question L98

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Old Dec 1, 2003 | 08:54 PM
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Default quick stock head question L98

What is the chamber size on the stock aluminium heads of an 89 L98
Thanks
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Old Dec 1, 2003 | 08:59 PM
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Default Re: quick stock head question L98 (timallard)

58cc
Nice car ya got there :D
what is that I see under the nose? An air damn of somekind?
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Old Dec 1, 2003 | 09:11 PM
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Default Re: quick stock head question L98 (89 Paul in Cal)

It is a front spoiler. You can't see it too well in the picture.
Is 58cc right? I am looking in my corvette specs book, and it says chamber volume is 4.6 cu-in which calculates to 75cc.
I have read before somewhere that it is 58cc, but this book contradicts it. I need to know so when I get the bottom end of my engine rebuilt, I don't end up with the wrong compression ratio.
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Old Dec 1, 2003 | 09:19 PM
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Default Re: quick stock head question L98 (timallard)

neat spoiler.
Speaking of compression ratio, what is the highest available octane at the pumps down there? Most USA is 93, but here in California it is 91 :cry
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Old Dec 1, 2003 | 09:23 PM
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Default Re: quick stock head question L98 (89 Paul in Cal)

BP Ultimate 98 octane. I can probably get to 10-1 ratio with that, but I would rather keep it closer to stock
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