The Ford Barn - View Single Post - didn't use Permatex Thread Sealant when installing heads

RandyMettler · 01-16-2019, 02:43 PM

Thanks again for all your help.

Any thoughts on bumping up the nut torque from 40 to 50 or 55 foot pounds?
My block is a 8BA

Just a thought, I torqued all the nuts on the offy's aluminum heads to 40 foot pounds as per Vanpelts tune up info. When I first removed the heads the nuts seemed to be torqued down much tighter than 40 pounds. It could have been due to the amount of time since last installed. I am tempted to re-torque to 50 or 55 but fear that may stress the block and could crack it. The heads were not leaking before I removed them, so leaks are not from warped heads. I took them off to check valve clearance.

01-16-2019, 02:43 PM	#11
RandyMettler Senior Member Join Date: Dec 2018 Posts: 128	Re: didn't use Permatex Thread Sealant when installing heads Thanks again for all your help. Any thoughts on bumping up the nut torque from 40 to 50 or 55 foot pounds? My block is a 8BA Just a thought, I torqued all the nuts on the offy's aluminum heads to 40 foot pounds as per Vanpelts tune up info. When I first removed the heads the nuts seemed to be torqued down much tighter than 40 pounds. It could have been due to the amount of time since last installed. I am tempted to re-torque to 50 or 55 but fear that may stress the block and could crack it. The heads were not leaking before I removed them, so leaks are not from warped heads. I took them off to check valve clearance.