6.0 LQ9 heads?

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Feb 4, 2005 | 12:27 AM

solobaric

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6.0 LQ9 heads?

Are the 6.0 lq9 heads the ones some of you boosted guys are using? If so, will they work as is, or is any P&P required? I have a chance to pick some up super cheap, but don't know if they will work for my TT setup.

Feb 4, 2005 | 01:41 AM

F8L Z71

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I use em on my 5.3L truck.

The LQ9 and LQ4 heads are the same. If you are getting them for under $500 then you're doin good.

Feb 4, 2005 | 05:19 AM

smokinHawk

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ya, go for it, great mod for the buck, definatly worth it.
only think you need to do is use the 4.0 bore gaskets

Feb 5, 2005 | 12:43 AM

solobaric

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Will they work with CC918 springs?

Feb 5, 2005 | 01:04 AM

F8L Z71

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I'm using the 918s. My new heads are going to be completely different but the 918s worked for what I used to have. Just don't get real agressive on the cam or else those wont be enough with a lot of boost.

Mar 3, 2005 | 11:28 AM

mdhmi

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Yes, but are the 6.0L heads worthwhile for FI even if you don't port or polish them?

Mark

Mar 3, 2005 | 11:38 AM

NA$TY-TA

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Quote:

Originally Posted by mdhmi

Yes, but are the 6.0L heads worthwhile for FI even if you don't port or polish them?

Mark

I believe its the compression drop most people look at when they add them to a stock motor when the heads are still in stock form.

I run LQ9 317 casting 6.0L ported heads.
Kyle

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Mar 3, 2005 | 04:46 PM

everx

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my question is where do u find them that cheap and do u have to have certain valve springs to go along with the heads. well any help would be greatly appreciated

Mar 3, 2005 | 05:09 PM

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EightBall

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The type of valve spring depends on the cam you are using. I'm using a cam with under .600 lift so the comp 918s were fine for me.

I got mine off ebay complete for $300 back in October.

Mar 3, 2005 | 05:20 PM

#11

NA$TY-TA

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From: San Antonio, TX

Quote:

Originally Posted by everx

my question is where do u find them that cheap and do u have to have certain valve springs to go along with the heads. well any help would be greatly appreciated

There was a set in the for sale section i believe....... Swap out the springs and go for it....
Kyle

Mar 3, 2005 | 07:38 PM

#12

Badzracing

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I'm selling a set....look in the classified section. Ferrea valves and comp cams components ( inl. titanium retainers).

Mar 3, 2005 | 08:18 PM

#13

Ryan K

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Also, the 6.0L 317 casting DO flow better than stock LS1 heads. They have the same port design as the LS6 head.

Mar 3, 2005 | 08:59 PM

#14

NA$TY-TA

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Quote:

Originally Posted by Ryan K

Also, the 6.0L 317 casting DO flow better than stock LS1 heads. They have the same port design as the LS6 head.

yep....... 2nd that....

Mar 3, 2005 | 10:17 PM

#15

mdhmi

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From: Detroit, MI

Kyle, did you do a before/after 6.0L head results dyno? How much, if any, did your boost drop when you added the 6.0L's?

Thanks,

Mark

Mar 4, 2005 | 09:41 AM

#16

TSDuke

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Here is a set on ebay.

http://cgi.ebay.com/ebaymotors/ws/eB...958262983&rd=1

Mar 4, 2005 | 07:50 PM

#17

NA$TY-TA

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From: San Antonio, TX

Quote:

Originally Posted by mdhmi

Kyle, did you do a before/after 6.0L head results dyno? How much, if any, did your boost drop when you added the 6.0L's?

Thanks,

Mark

Sorry i went with a new shortlock at the same time........ back in the early days people would see about a 2-3 psi drop but HP would stay right about the same..... so the motor wasnt working as hard to make the same power and the restriction to flow was down.. ie boost.
Kyle

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6.0 LQ9 heads?

6.0 LQ9 heads?

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