01-31-2019, 10:15 PM | #1 |
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Join Date: Jul 2008
Location: Summerville SC
Posts: 42
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LQ4 317 cracked head.
My LQ4 6.0 has a cracked head on the driver side. Fluid is leaking out where the exhaust manifold bolts on. I’m currently looking for a used set of 317 heads. My question is what heads will bolt right up without changing pushrods or rocker arms. The truck is not going to be a race truck or anything. I just wanna know what heads are interchangeable for an easy swap. Thanks 🙏
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02-01-2019, 03:28 PM | #2 | |
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Join Date: Mar 2009
Location: League City,TX
Posts: 66
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Re: LQ4 317 cracked head.
Quote:
243 / 799 / 823 706 / 862 / 895 Those will bolt on and work with everything that you have. These will bolt on, but your valve covers will not 853 / 806 / 933
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02-01-2019, 08:54 PM | #3 |
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Join Date: Jul 2008
Location: Summerville SC
Posts: 42
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Re: LQ4 317 cracked head.
Thanks for the great information. Out of that list of heads, which one do I keep an eye out for? (my best option)
Thanks again |
02-01-2019, 09:04 PM | #4 |
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Join Date: Jun 2018
Location: Columbus
Posts: 95
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Re: LQ4 317 cracked head.
stock or 243s i think. 243 would be an upgrade. fairly certain 799 heads are the exact same as 243s but people argue about it cause internet.
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02-03-2019, 08:59 AM | #5 |
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Join Date: Jul 2008
Location: Summerville SC
Posts: 42
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Re: LQ4 317 cracked head.
I just grabbed some 706 heads locally for $80! Thanks for all the great information. I’m going to be up and running in no time.
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02-03-2019, 11:52 AM | #6 |
meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: LQ4 317 cracked head.
706's will bump compression on a 6.0 from the smaller chamber. You'll wanna tune it anyway so might as well Put some cam behind that and take advantage of the bump in comp.
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