Quote:
Originally Posted by 47topless
Should I use hardened washers, with the stock nuts and studs, when installing the stock iron heads on a 59 AB? Was there a reason that washers were not used originally on these engines?
In my practical mind, it seems like washers would greatly assist in maintaining the torque value, on these nuts, as the engine is run and warmed up.
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I use the hardened steel washers on my '35-'36, 21 stud engines when using iron heads because these engines I have originally came from the factory with aluminum heads and hardened washers under the nuts, so the original studs were a bit longer because of this. If I use iron heads with original studs and no washers, the studs would protrude an additional 1/16", or more above the top of the nuts.
So, there's no reason why you can't use hardened steel washers on your 59 series engine with iron heads as long as you have the studs set to the right height above the deck, and I believe you are correct on your thinking that torquing the nuts and holding that torque would be better/easier with those hardened steel washers in place under the nuts. It's your call.