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317 heads getting milled

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Old 02-13-2015, 11:48 PM
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Originally Posted by TXsilverado
mill .035 for roughly 10.5:1 compression.
I figured .030 would put me at 9.9:1 comp. either way he is gonna cc a chamber tomorrow so then I can really figure it out
Old 02-14-2015, 10:26 AM
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Has the makings of a good Nitrous motor! Carry on my friend! Let us know how ya do..
Old 02-14-2015, 11:16 AM
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whats plans for truck? with the mods you have listed, they wouldnt be the first mods for my choice for that truck
Old 02-14-2015, 12:04 PM
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Forgot to post full mods going in.
Transmission- 3200 single disk- trans go hd-2 shift kit

Engine- arp head bolts- ls7 lifters- ls9 head gaskets- 317 heads milled .030 with BTR dual springs with titanium retainers- BTR trunion upgrade- kateck timing chain- ls6 ported oil pump from texas speed. I think that's it. Tuning will be done by JRX tuning. He is coming to my friends shop and tuning a few trucks while he is done.
Old 02-14-2015, 03:55 PM
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for a NA setup there is no reason to use the Ls9 gaskets, milling the heads then using gaskets would be counter productive as the ls9s drop compression as they are thicker
Old 02-14-2015, 04:31 PM
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I'm using the ls9 gaskets because I don't plan on staying NA for too long maybe nitrous in a few months
Old 02-14-2015, 08:26 PM
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Nitrous likes all the compression you can throw at it Plus the motor will be more efficient with higher CR while not putting on the juice. Imo, there are options that are as good that doesn't lower CR... js.
Old 02-14-2015, 08:52 PM
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Yeah I know.. If I wanted to go all out I would have gotten different heads and a different cam.. nitrous I still a question as I might not even do it I will still have the mls gaskets their if I want too later on. Just having fun with it fellas
Old 02-14-2015, 09:01 PM
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again what is the intentions of this trucK?
Old 02-14-2015, 10:09 PM
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Sounds like a fun truck!...lol


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