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head gasket options?
Posted: July 26th, 2012, 9:46 am
by jason alexander
[*]hey guys im wondering whar the thickest gaskets u can get are for the 4.0 head i have seen talk about. 051 and. 043 im wanting to lower my cr any advice on what head gasket to use?
Re: head gasket options?
Posted: August 3rd, 2012, 5:50 am
by Cheromaniac
The old style composite OEM HG is 0.051" but I believe the new multilayer steel HG is 0.043".
Re: head gasket options?
Posted: August 5th, 2012, 8:04 am
by Retlaw01XJ
Sure would be nice if there was a wider range of thicknesses available to fine tune our compression ratios!
Some of the turbo Buick guys used to stack the (single layer) steel shim gaskets.
Re: head gasket options?
Posted: August 7th, 2012, 3:06 am
by racing89
I believe the felpro 530sd is .052" compressed. Am currently running with over 10.5 : 1 compression
Re: head gasket options?
Posted: August 8th, 2012, 4:08 pm
by Black00Sahara
www.ferriday.co.uk/cnc/decompression_plates.shtml
check this out. not for jeeps but someone in the US could produce this......... HESCO????
Re: head gasket options?
Posted: August 8th, 2012, 4:26 pm
by SilverXJ
You would need longer push rods and quench would be non-existent. Better just to build the engine the way it needs to be built for the intended compression.