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Quench, how much?

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Quench, how much? Empty Quench, how much?

Post  2 wicked September 3rd 2021, 6:05 pm

Got started assembly the new engine the other day. Installed rotating assembly, and trying to decide on head gasket thickness. It's a 4.5 stroke 6.7  aluminum rod, diamond 14.6 cc dome Pistons are in the hole .012/.013 . Cyl heads are 360 cc tfs a460 with 87 cc chamber. Will be running nitrous- up to about a 250/300 shot. Plan on .041/.045 Cometic head gaskets. Which will give me .054/.058 quench. Grp told me rods would grow .006/.008 at temp. Which leaves .044/.050 quench. Or should I go a little more? Thanks cory

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Post  dfree383 September 3rd 2021, 9:27 pm

Good IMO
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Post  Lem Evans September 6th 2021, 12:24 pm

2 wicked wrote:Got started assembly the new engine the other day. Installed rotating assembly, and trying to decide on head gasket thickness. It's a 4.5 stroke 6.7  aluminum rod, diamond 14.6 cc dome Pistons are in the hole .012/.013 . Cyl heads are 360 cc tfs a460 with 87 cc chamber. Will be running nitrous- up to about a 250/300 shot. Plan on .041/.045 Cometic head gaskets. Which will give me .054/.058 quench. Grp told me rods would grow .006/.008 at temp. Which leaves .044/.050 quench. Or should I go a little more? Thanks cory

.051" cometic would be better with aluminum rods. Nitrous doesn't like the piston real close to the head.

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Post  2 wicked September 6th 2021, 2:37 pm

Thanks lem, will be going with the .051 gasket. Will be ordering head gaskets next week. Thanks cory

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