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LS1 heads ported or not

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Old 07-28-2016, 11:55 AM
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Default LS1 heads ported or not

Purchased a car with 241 heads that we're supposition ported here is a pic of the exhaust port let me know what you think.
Old 07-28-2016, 04:29 PM
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Definitely looks like someone was in there doing something. Did he say who did it or was it a DIY at home project?
Old 07-28-2016, 04:34 PM
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He said they were done by MTI racing trying to figure out if I should use these heads or buy TSP 6.0l ported heads.
Old 07-28-2016, 04:48 PM
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Im sure the TSP head swill flow better. But who know unless you have them tested. I just picked up a set of 243 heads I plan on sending them for their stage 1 cnc port job. Hear a lot of good reviews on their work.
Old 07-28-2016, 04:51 PM
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That's what I was planning but then looking at these they didn't look bad, and would be cheaper since already have them. Just wanted to confirm they have work done. I took them to a shop that can flow test them but the cost was more than I am willing to spend knowing they may be crap.



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