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What are the size on the combustion chamber on the stock L98 heads?

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Old 09-15-2000, 04:52 PM
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What are the size on the combustion chamber on the stock L98 heads?

???, and will I want to use the same size chamber with 10:1 pistons? Thanks.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission with 2.77:1 Rear End

Current Mods: Edelbrock TES Headers, Hooker Cat-Back System, Performance Resource Chip with 160* Thermostat, Accel Ignition Components, K&N Filters, All Free Mods, Falken ZIEX Z-Rated Tires.

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Old 09-15-2000, 05:10 PM
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Car: 92 RS/90' vette
Engine: Heads/cam/miniram/blah blah blah..
Transmission: T5/700!
Axle/Gears: 3.08
I *think* the cast Iron l89s are 64cc.
I know the aluminum L98s are 58cc.
Old 09-15-2000, 06:15 PM
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Daz
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Car: 87 Camaro
Engine: Chevy V8
Transmission: auto
On paper its 64cc but I talked to different engine builders and they said that some go as high as 67cc.

Daz
Old 09-16-2000, 12:14 PM
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aluminum 350 heads 87-92 58cc

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Iroc 350 5 speed
Old 09-16-2000, 01:25 PM
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Car: 2005 Subaru STI
Engine: 153ci of Turbo Power!
Transmission: 6-Speed
Yeeup,

Cast Iron L98 heads are 64cc and Aluminum L98 heads are 58cc.

Tim

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