Prior to the season, the Super Stock division had some rules changes for 1987, most significantly was the allowance of racing tires. They were also officially renamed Late Models after years of being casually referred to as such. Except for a brief stint at the turn of the century, the division has been named Late Models ever since.
The 1987 SK Modified season would end with 75 and 100 lap events – both worth double points. In the 75 lapper, Ronnie Rocco had an incredible run. He qualified thru the consi, then pitted multiple times early in the feature before taking the lead around the half-way mark. He would go on to the win, while the top 2 point leaders Ed Flemke Jr & Bob Potter both finished several laps down. Rocco, who went into the event 5th in the standings, emerged tied for the point lead with Flemke, while Potter sat 4 points behind heading into the final event.
In the season-ending 100 lapper, Flemke had the worst luck being involved in 2 separate incidents early in the event that took him out of title contention. Rocco had a solid day finishing 3rd, but Potter took the win to finish the 2 positions ahead of Rocco he needed to clinch the title. Potter's 5th championship tied him with Don Collins & Moose Hewitt for the most ever at the Speedbowl. He again led the division in wins as well with 5 – capping his season with a double point 100 lap win during Finale Weekend. Rick Donnelly won his 4th Blast Off event and first since it was converted to an SK Modified® event in 1985. Potter, Mark Lajeunesse and Ted Christopher won the 50 lap events.
Phil Rondeau had his most dominate season to date when he won his 2nd Late Model Championship and captured a record 11 feature wins. This season he drove future-rival Jay Stuart's #66 car at the Speedbowl instead of his own #19 machine. Rondeau's season included 3 seperate streaks of 3 wins in a row. On July 18th, he won 2 features on the same day. Dennis Gada won two 30 lap features and became the 7th member of his family to earn a Saturday division feature win. Bob Greene won the season ending double point 50 lapper during Finale Weekend.
NASCAR presented a new Connecticut Tri-Track series which combined points from all 3 Connecticut short tracks (Waterford, Stafford and Thompson) for the SK Modified and Late Model divisions. Tri-Track Champions were Thompson SK Champion Ted Christopher and Stafford & Waterford LM Champion Phil Rondeau.
MJ Sullivan 100 returned for a third season as the NASCAR Modifeds' lone Speedbowl event in 1987. 3-time NASCAR Champion Carl "Bugsy" Stevens broke the Modified Track record with a 15.090 lap time in qualifying. It was the 4th straight NASCAR Mod event where the lap record was broken. Eventual series champion and future NASCAR Cup star Jimmy Spencer won the 100 lap June event. Spencer made uncomplimentary comments about the Speedbowl's racing surface during his Victory Lane interview. It was the only touring series event as both the NEMA midgets and New England Mini Modifieds (Pro-4's) did not compete at the shoreline oval this season.
The Finale Weekend was delayed a month due to inclement weather and scheduling conflicts. The weekly point division's seasons finally concluded on October 25th.
After months of speculation that they were going to buy the track from Harvey Tattersall Jr, the 1987 season would be the last for the Arute family operating the Speedbowl. They turned their focus back solely on their own track in Stafford Springs, CT which remains one of the most successful short tracks in the country to this day.