# 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:** 157

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**Author:** ![jdaniels](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jdaniels/32/6399_2.png) [@jdaniels](https://forums.speedlife.net/u/jdaniels)\
**Post date:** [December 23, 2011, 3:58pm UTC](https://forums.speedlife.net/t/project-10sec-4k-4thgen/261223/157 "2011-12-23T15:58:53Z")

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> [@wtb anything 45-5000](https://forums.speedlife.net/t/wtb-anything-45-5000/47431/2):
>
> I would put A ls6 cam in it, 243 heads on it with the sodium filled valves and let the bottom end take the abuse. There are guys running 20+ psi on that setup on a stock bottom end running well into the 9’s. The key is low timing with a dialed in toooooon.

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.

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