Hi,

aftermarket offers studs to bolt down the heads of the V8 rather than the bolts or later stretch-bolts.

Do they make that much sense (less stress/pull around the thread area of the block and it´s said to reduce the tendency of the blocks cracking behind the liners).
My main concern is (costs aside) - can one expect difficulties to remove the heads in, say, 20years when studs are used - because corrosion or whatever between the aluminium of the heads and the steel of the studs react together over the time.

??

Studs and aluminium ? I have heard horror stories of people not being able to dismantle Rolls Royce Merlin aircraft engines due to the build up of corrosion around the studs.I heard of one guy who drove his old Leyland Diesel truck for over 200 miles with the cylinder head nuts loosened 1/16'' before the corrosion broke free. Perhaps something like Neverseize or Coppercoat on the whole length of the studs may solve the problem.
Bill.

Properly installed they wont do that. Also.. Unless you cross thread or otherwise damage them ARPs will outlive the rest of the motor..

The TQ is alot more accurate on a stud than a bolt.

On a diesel particularly the weight of the head (iron + diesel beef) combined with having to lift it straight up the stud makes installation and removal tought for some.

On these engines I use a picker with a adjustable sling. On the way out take your time and lift a little at a time looking at the head to block joint all around to be sure you are lifting straight.

I have used them on full iron engines. full aluminum (less sleves etc) and iron block and aluminum head engines.

Just clean the block holes right. Dont leave any oil in the bottom of a blind tapped deck. Make shure the hole on this type is clean and dry. This cracks LS1's and other engines. Then use the ARP lube on the threads. Just a touch. Enough to wet the threads and not enough to puddle in the block. Use the ARP oil to lube the nut end of the threads as well.

You need to look at the ARP tq chart for your studs using the ARP lube as opposed to std oil.. Tq according to that chart.