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which of these head gaskets for a nitrous 370

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Old 02-11-2016, 05:36 PM
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Default which of these head gaskets for a nitrous 370
http://texas-speed.com/p-2260-cometi...4030-bore.aspx

http://texas-speed.com/p-186-cometic...4035-bore.aspx

The block is a lq4 .030 over. Should I go with the 4.030 bore or the 4.035.
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Old 02-12-2016, 07:15 AM
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I would call texas-speed and ask them.
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Old 02-12-2016, 09:14 AM
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I wouldn't use either, that's a little too close for my comfort. GM gaskets are usually .050" larger than the intended bore, but I've used the 4.050" bore 6.0L gaskets on a 4.030" block many times.
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Old 02-14-2016, 11:26 AM
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smallest i would go is a 4.060 gaskets for a .030 bore
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