ARP head bolts or head studs???
I can't say for sure but we have had 2 cars with ARP bolts and Cometic Gaskets leak. The rest of the cars we have done were with ARP studs and no leakage. Not sure if there is a correlation but we will not use bolts anymore.
Phil
Phil
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Originally Posted by Phil99vette
I can't say for sure but we have had 2 cars with ARP bolts and Cometic Gaskets leak. The rest of the cars we have done were with ARP studs and no leakage. Not sure if there is a correlation but we will not use bolts anymore.
Phil
Phil
Should not make a difference...
However if you are taking heads on and off studs are reccomended so you don't have to clean the bolt holes everytime
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Who ever asked about tqing procedure.... ARP does not provide a tqing procedure....
However follow these rules with arp bolts:
With Arp Lube
Torque all 15mm bolts to 30lbft in the torque sequence above. Do a second pass at 50lbft, and finally a 3rd at 70lbft.
Finally install the 5 smaller ARP bolts and torque them to 22lbft.
With motor oil:
Torque all 15mm bolts to 35lbft in the torque sequence above. Do a second pass at 60lbft, and finally a 3rd at 85lbft.
Finally install the 5 smaller ARP bolts and torque them to 28lbft.
