7M-GTE Head torques on stock bolts...

MA70-3.0GT · 11-06-2009, 06:57 PM

So I've just been reading through the various threads on head bolt torque settings & the concencus seems to be that on a stock gasket with ARP studs or bolts, 80-90ft-lb is the way to go to avoid BHG issues a few thousand miles down the line.

Just wondering as my engine has a recent full rebuild but (at a guess) still runs stock bolts, what torque can said stockers handle being taken to? I only ask because I'd like to make sure the head's as tight as possible without going through the rigmarole of fitting a new HG & bolts at least until I need to, at such time I'll probably splash out on ARP's.

From what I've read, 'yota say 58ft-lb stock, but could the stock bolts handle say 70/75 without waisting/stripping or anything else as nasty?

Cheers, Dan.

11-06-2009, 06:57 PM	#1
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	7M-GTE Head torques on stock bolts... So I've just been reading through the various threads on head bolt torque settings & the concencus seems to be that on a stock gasket with ARP studs or bolts, 80-90ft-lb is the way to go to avoid BHG issues a few thousand miles down the line. Just wondering as my engine has a recent full rebuild but (at a guess) still runs stock bolts, what torque can said stockers handle being taken to? I only ask because I'd like to make sure the head's as tight as possible without going through the rigmarole of fitting a new HG & bolts at least until I need to, at such time I'll probably splash out on ARP's. From what I've read, 'yota say 58ft-lb stock, but could the stock bolts handle say 70/75 without waisting/stripping or anything else as nasty? Cheers, Dan.