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- Discovery II (https://landroverforums.com/forum/discovery-ii-18/)

- - head bolts (https://landroverforums.com/forum/discovery-ii-18/head-bolts-19871/)

DISCOLUV

Feb 16, 2009 07:20 AM

head bolts

I was just wondering when LR went to the torque stretch head bolts. This is a problem for me and I was just wondering if any other solutions exist ie; stud kits. With head gaskets being a known problem it seems that a bolt that is designed to stretch is a really bad idea. I just got on ARP's site and didn't see anything. They don't open for a couple hours so I am unable to find out if they can help me. Any input would be greatly appreciated. BTW 2001 DII at 90k so I am probably getting close.

Disco Mike

Feb 16, 2009 11:39 AM

If you are wondering about head bolts for D2's, yes they all have the new style stretch bolts.

okdiscoguy

Feb 16, 2009 11:43 AM

The head problem isn't with the bolts, it is the design of the engine, AL block with steel liners, and the gaskets used to have a steel ring, but are now a composite material. All of the heating and expansion with dis-similar metals caused gaps over time. Trust me, for this very reason, you want to have the stretch bolts, or you will warp your heads.

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