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305 casting number 1985

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Old Jan 16, 2023 | 05:50 PM
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Tim Newton's Avatar
Tim Newton
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From: Australia
Car: Corvette 1958
Engine: GM LB9 TPI 1985
Transmission: TH700R4
305 casting number 1985
Any suggestions on what the ‘G’ or maybe ‘C’ means on the casting which appears as GM 5.0 L G
image attached

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Old Jan 16, 2023 | 11:58 PM
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Fast355
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: 305 casting number 1985
Originally Posted by Tim Newton
Any suggestions on what the ‘G’ or maybe ‘C’ means on the casting which appears as GM 5.0 L G
image attached
5.0L Gas
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