L-series head bolt thread

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Join Date: Mar 2008

Location: Northwich, Cheshire

Car: Rover 420 iXLD

Posts: 2,558

L-series head bolt thread

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I've got the head off my 400 (again!), and want clean out the head bolt threads in the block before putting the head back on again.

I think that the head bolts are M12x1.5. Can anyone confirm this please, so that I can order the correct tap?

Cheers. TIA

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1994 (L) 820 Vitesse (Nightfire Red)
1999 (V) 400 iXLD (Brooklands Green)

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L-series head bolt thread