The win puts the Squires into the championship game, in which they will host West York, a 2-1 winner over Dallastown, at 5 p.m. Monday.
Both schools will be going for their first championship in the four-year history of the tournament. Tickets for Monday's game will cost $5 for adults and $3 for students.
The score was a stark contrast from the 2-1 win that Delone claimed over the Thunderbolts on April 30.
"I expected it to be a dog fight again today," Delone head coach Alan Felix said, "but offensively we played very well."
Kime opened the scoring for Delone with a three-run round-tripper in the bottom of the first inning that was a high, soaring drive that got caught in the wind and came down beyond the left field fence.
"I went up there looking for a good pitch," Kime said when asked about the home run. "The pitch was up a little and I got my bat on it. The wind sort of carried it out."
Littlestown (13-6) threatened in the top of the second when Kai Hess led off with a double to center field, but the Bolts were then set down in order by Squire southpaw Austin Buckley as he struck out the next three hitters.
That was one of three innings when Buckley struck out the side.
Delone (17-4) went right back to work
Kime followed with a long drive to left that wrapped around the foul pole for a two-run homer and a 7-0 lead.
"They came out hitting a lot better than we did today," Littlestown head coach Todd Gantz said. "They just played a better game all around."
The Squires added to the lead in the third when Stephan singled home Cody Dye and then came around himself when Ayres doubled him home.
If Littlestown had a chance to get back in it, it was the top of the fourth. Logan Mummert led off with a double and was plated on Hess' single with one down. The Bolts had runners on first and second bases with two outs, but Buckley struck out Ryan Strevig to end the threat.
That finished the day on the hill for the senior as he went four innings and allowed one run and three hits. He had 10 strikeouts and one walk and threw 67 pitches, 42 of them strikes.
Seth Bullers invoked the mercy rule for the Squires when he flared a single into shallow center field that scored Kime and Devin Altland with two outs in the fifth.
After starting the season 3-4, the Squires have won 14 straight, picking up their first YAIAA Division IV crown since 2007 in the process.
"The major thing for us is the experience that we have," Felix said. "We lost three guys from last year's team. That's it. So we have a lot of guys that have played a lot of baseball and they've come together as a group very well."
In addition to Kime's home runs, the senior added a single and scored three times. Ayres drove in three runs and Bullers had three hits.
Hess paced the Bolts with two hits.
DELONE 11, LITTLESTOWN 1
Littlestown 000 10 -- 1 4 3
Delone 342 02 -- 11 15 1
Lt, Todd Cook, Adam Forsythe (3) and Logan Mummert; DC, Austin Buckley, Tyler Kime (5) and Mark Fagnani. SO-BB -- Cook 2-3, Forsythe 2-0. W -- Buckley. L -- Cook. 2B -- Lt, Kai Hess, Mummert; DC, Cooper Ayres 2, Sam Stephan, Seth Bullers, Devin Altland. HR -- DC, Kime, 2.