Malkin made it 4-0 at 12:48. He skated in from the blue line, took a pass from Reilly Smith all alone in the slot, and scored short side past the blocker of Sorokin.
Malkin scored his second of the period by tapping in a backdoor pass from Letang to make it 5-0 at 16:06.
Radim Zohorna extended it to 6-0 at 17:13, scoring on a rebound in the crease with his backhand off a 2-on-1 with Valtteri Puustinen.
It was the first time Pittsburgh had scored six goals in one period on the road since March 21, 2000, when it also scored six times in the second period against the Islanders in an 8-2 win.
“I thought the team played a great game. We had a well-structured game, we were sticking to the plan,” Jarry said. “That helps us execute. I think that puts us in a good place. You see how many goals we got in and around the net. I think that’s a recipe for success.”
Puustinen scored his first NHL goal to make it 7-0 at 9:48 of the third period. He buried a one-timer from the left circle off a diagonal cross-ice pass from Letang.
“It's always fun when you're the guy that sets up the first NHL goal,” Letang said. “I think Sid [Crosby] had all of them, but it's cool. It's a special moment for the player, and you just saw it on his face, how special it was. It was cool to do.”
NOTES: Dale Hawerchuk is the only other player in NHL history to have five assists in one period, doing so for the Winnipeg Jets in a 7-3 win against the Los Angeles Kings on March 6, 1984. ... Letang is the first defenseman with six assists in a game since April 4, 1986 (Gary Suter). ... Rakell has scored in consecutive games after not getting a goal in his first 19 games this season. ... Pettersson's four assists were an NHL career high.