Yes and maybe hurt your neck. It would likely daze you but you would be definitely much more protected than without a helmet.
Also I said this in another topic, but I will repeat again: The reason why clubs seem so strong is, in this game, IT DOESNT MATTER if you hit them in the head, it still applies full torpor. So I could KO someone by hitting his fully metal-plated shin (and metal grieves will definitely protect against a blunt hit from a primitive club IRL). They should make it so that you have to actually smack the head of the enemy to apply torpor at all. Then it would still be effective to the skilled low level player but won't be abused as a terrifying murder stick by trolls and make any armor other that riot pointless.
They could also add a wind-up mechanic, similar to a thrown spear, slingshot, bow etc that makes damage and torpor scale with the duration of the charge. This would turn the club into a stealth sort of weapon where you have to sneak up to a player to perform a takedown and hit him in the noggin and not the spammy sleep dispenser that it is currently.Then you wouldn't have scenarios where a club beats a sword in a 1v1 fight. It would also categorize the electric prod as the most effective instant torpor weapon that it should be.