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272bajadriver

05-13-2018 01:37 AM

525 arp Head bolts torque spec question

My mercury 525 has arp head bolts. The manual calls for the torque specs for the head bolts of 30, 50 and a final of 70ft lbs. I don’t know if it came with arp from the factory. My question is do these arp bolts have a different torque spec or no? Sorry if it’s a “dumb” question just trying to double check is all, thanks. Didn’t know if arp had their own torque spec.

HyFive578

05-15-2018 07:44 AM

If you're talking about a 525EFI and not a 525SC, my Merc service manual says final torque spec for cylinder heads is 80 ft/lbs.

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