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Timing cover bolts - what size?

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Old 08-26-2008, 09:35 PM
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Car: 86 Corvette, 89 IROC, 1999 TA
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Timing cover bolts - what size?

I need timing cover bolts, no idea what happened to the old ones.. anybody know what size bolts I need?
Old 08-26-2008, 09:55 PM
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Re: Timing cover bolts - what size?

Probably 1/4" x about 3/4" long NC. I don't like generic bolts on the timing cover. The 7/16" head is big. Late model or aftermarket bolts use a flanged head so the same size bolt only needs a 3/8" socket. I just went and scrounged a bunch from the junkyard the last time I needed some.
Old 08-26-2008, 10:05 PM
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Re: Timing cover bolts - what size?

1/4 x 20 x 1/2 i think????
Old 01-22-2018, 01:31 PM
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Re: Timing cover bolts - what size?

Old thread, but... same problem here. My screws are rusted pretty bad. Any source where I can buy them new? I also need oil pan bolts and thermostat housing bolts...
Thanks.
Old 01-22-2018, 06:00 PM
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Re: Timing cover bolts - what size?

https://www.summitracing.com/parts/mor-38590
Old 01-22-2018, 11:53 PM
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Re: Timing cover bolts - what size?

Awesome! Thank you!
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