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862 heads on an lq4?

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Old 12-08-2010, 10:19 PM
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Default 862 heads on an lq4?
I have got a set of 862 5.3 heads that I can get milled down to whatever I want really cheap.
My question is how much would I mill them to? And would I need to worry about ptv?
The motor is an 06 lq4 with a 230/236 591/601 113lsa. I want a decent c/r
I am running a 150 and 91 octane gas.
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Old 12-08-2010, 10:27 PM
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it won't be worth it.. You will prolly lose power by putting worse flowing heads but more compression.. Unless they have been extremely worked
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Old 12-08-2010, 11:00 PM
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Originally Posted by Bumpers
it won't be worth it.. You will prolly lose power by putting worse flowing heads but more compression.. Unless they have been extremely worked
Would it be better to have the 317s I have on there now milled to bump the c/r?
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Old 12-08-2010, 11:05 PM
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Try to get some 243's or 799's
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Old 12-08-2010, 11:17 PM
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Originally Posted by 1slowz71
Try to get some 243's or 799's
What do those run for a used set these days?
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