# WTB Ls1 Heads

**URL:** <https://forums.speedlife.net/t/wtb-ls1-heads/39752>\
**Category:** Classifieds\
**Created:** [December 4, 2007, 5:20pm UTC](https://forums.speedlife.net/t/wtb-ls1-heads/39752 "2007-12-04T17:20:45Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![psphinx81](https://avatars.discourse-cdn.com/v4/letter/p/e9a140/32.png) [@psphinx81](https://forums.speedlife.net/u/psphinx81)\
**Post date:** [December 4, 2007, 5:32pm UTC](https://forums.speedlife.net/t/wtb-ls1-heads/39752/5 "2007-12-04T17:32:23Z")

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here is the info on his heads:

TSP 5.3L stage 2.5 heads, 220cc intake runner, 2.02/1.60 valves, they flow 312cfm, 63cc combustion chambers i believe which gives you 10.75:1 on a stock motor, prc dual valve springs, titanium retainers, yada yada.

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