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Old Aug 9, 2011 | 07:07 PM
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Default 5.3 heads

I am on a budget and was looking into buying a pair of ported ls6 heads for my trex cam and full bolt ons ls1. A friend of mine told me I would be better off getting a pair of used 5.3 heads for cheap and having them ported. He said the 5.3 head will give me a little more compression which my cam will really like. My question is if I get the 5.3 heads will I have to fly cut my pistons or should it be ok? What are others thoughts for which will give me better results for a budget price?
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Old Aug 18, 2011 | 09:05 PM
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anyone?
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Old Aug 18, 2011 | 09:31 PM
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always verify PTV if its in question. Plus 5.3 heads are either 243s or 799s. I got new 799s off of eBay for 340.00 shipped. They were cosmetic blems from GM.
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Old Aug 18, 2011 | 10:07 PM
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5.3 heads are also 862...i have a ported and polished set with dual springs if you are interested i have a thread open and willing to sell for 350 shipped
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Old Aug 19, 2011 | 05:45 PM
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I may be interested can you send me the link to the thread I am curious to know the specs of them and who did the work.
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Old Aug 19, 2011 | 06:19 PM
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another 5.3 head is 706
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Old Aug 19, 2011 | 07:29 PM
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Originally Posted by zipster
always verify PTV if its in question
This. However, i believe you should be fine, assuming the heads haven't been milled.
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