# Project 10Sec $4K 4thGen

**URL:** <https://forums.speedlife.net/t/project-10sec-4k-4thgen/261223>\
**Category:** Vendor Marketplace\
**Created:** [November 7, 2011, 12:24pm UTC](https://forums.speedlife.net/t/project-10sec-4k-4thgen/261223 "2011-11-07T12:24:49Z")\
**Posts on this page:** 1\
**Showing post:** 158

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**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\
**Post date:** [December 23, 2011, 4:32pm UTC](https://forums.speedlife.net/t/project-10sec-4k-4thgen/261223/158 "2011-12-23T16:32:41Z")

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> [@\*\*\*\*Official: Southgate Meet Thread\*\*\*\*](https://forums.speedlife.net/t/official-southgate-meet-thread/29171/2119):
>
> Aluminum 317’s would be better for the 4" bore, plus they are like $150ish on ebay. Sodium valves are useless on this build, it will never see high enough RPM to benefit from a lightweight valvetrain.

there is no reason why it couldnt see 7-7500rpms with those sodium filled valves, ported oil pump etc.

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