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

[MA70-3.0GT]

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.

[Bill UK]

Originally Posted by MA70-3.0GT

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.

No that’s where it all went tits up 58ft-1b is all wrong, 72-75 for stock bolts. APR have different torque settings depending on what lubrication your using. The higher torque settings for stock bolts where published on the Sogi site about 15 years ago.

[MA70-3.0GT]

Ahh cool, that's the first job when I get the car back then as it was rebuilt by a general engine remanufacturers not a Toyota specialist, so I'd imagine the bolts'll be at 58...

Cheers.

EDIT-: man it's quiet today, this is the only post to be answered since last night!!! Oh well, hopefully it means people are out driving & not having to fix their cars...