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317 heads?

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Apr 5, 2016 | 06:57 PM

#1

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317 heads?

i have a lq4 on my airboat just ordered a new cam from cam motion wanting to deck the heads what is a good safe amount that will up the compression the heads are 317

Last edited by chevy13; Apr 6, 2016 at 12:46 PM.

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Apr 6, 2016 | 12:45 PM

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Dur @ .050 224 intake and 228 exhaust

Lift .552 intake and .544 exhaust

Lobe Separation 114

Intake centerline 110

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Apr 6, 2016 | 12:54 PM

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Would be better to sell the 317's and pick up a set of 243's. That would be the easier way to get the compression up on the dished pistons in the LQ4.

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Apr 6, 2016 | 12:55 PM

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That was my plan just trying to find a set is the problem

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Apr 6, 2016 | 07:56 PM

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243's
http://www.ebay.com/sch/i.html?_from...heads&_sacat=0

799's
http://www.ebay.com/sch/i.html?_odkw...heads&_sacat=0

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Apr 7, 2016 | 05:49 AM

#6

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From: Monroe,NY

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I don't know your budget but you could send the 317's to AI have chambers welded and then cnc like a 243 head and not lose any PTV plus have the compression raised a good amount.

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