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60cc heads on 305ci

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Old 10-15-2008 | 04:16 PM
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RedHawkLB9's Avatar
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Car: 89 Formy
Engine: carbed 355ci
Transmission: A4
Axle/Gears: 3.73 10 Bolt
60cc heads on 305ci

would the compression ratio drop too much on an lb9 with 60cc heads...i know they came with i think 58cc heads stock..i also have the stock pistons
Old 10-15-2008 | 04:20 PM
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Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
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Re: 60cc heads on 305ci

There won't be that much of a drop.
Old 10-16-2008 | 08:44 AM
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Engine: '85 Monte SS L69 305
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Re: 60cc heads on 305ci

I believe 2cc amounts to the same as a 0.01" difference in head gasket thickness.
Old 10-16-2008 | 09:23 AM
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Re: 60cc heads on 305ci

It won't be that much of a difference.

However the kicker is - what heads are these? aluminum? and have you verified the chamber size with a burette?
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