ls6 heads on a lq4 with flat top pistons
07-21-2010, 05:51 AM
#1
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ls6 heads on a lq4 with flat top pistons First will 243's fit on a lq4 block with flat top pistons?
Second what kind of power would it make with a stock ls1 intake and 228 236@50 .624 .600 lift cam?
Second what kind of power would it make with a stock ls1 intake and 228 236@50 .624 .600 lift cam?
07-21-2010, 09:31 AM
#3
Agreed, if they are flat-tops and your block is iron then you actually have an LQ9. And yes, the LS6 heads make a nice addition on top of that short-block and with the GM MLS gasket bump your compression up to 10.9:1 (same as the LS2's from the factory).
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07-22-2010, 02:45 AM
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09-28-2010, 02:07 PM
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Does anyone know which head gaskets you are suppose to use? 6.0 LQ4 block with 853 LS1 heads.
I used LQ4 head gaskets, haven't fired the motor yet and one of the heads is leaking antifreeze. Should I have used LS1 head gaskets?
I used LQ4 head gaskets, haven't fired the motor yet and one of the heads is leaking antifreeze. Should I have used LS1 head gaskets?
09-28-2010, 03:14 PM
#6
^^ 12498543
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09-28-2010, 03:32 PM
#7
The graphie gaskets are less prone to leaking but you can just go to a dealership and get some stopleak tablets that GM uses. Have never personally done this but have heard of multiple people doing it after a head install and finding that it leaks.
If this is in front of a 6spd youre going to make very close to 400@ the wheels depending on intake.
If this is in front of a 6spd youre going to make very close to 400@ the wheels depending on intake.
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09-28-2010, 03:37 PM
#8
The graphie gaskets are less prone to leaking but you can just go to a dealership and get some stopleak tablets that GM uses. Have never personally done this but have heard of multiple people doing it after a head install and finding that it leaks.
If this is in front of a 6spd youre going to make very close to 400@ the wheels depending on intake.
If this is in front of a 6spd youre going to make very close to 400@ the wheels depending on intake.
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10-16-2010, 04:12 PM
#13
Nice picture and very helpful in spreading the knowledge abut that casting! Thank you!
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