Year:
Length:
Beam:
Power:
Hours:
Price:
1991
31' -3"
8' -5"
Twin 385 hp
727
$ 33,500
Formula SR1 Thunderbird 311
Description
GORGEOUS 1991 Formula Thunderbird SR1 311. This monster weighs in dry around 7900lbs and rides like a dream. I have spent about 60hrs doing paint correction on the graphic and color areas to restore back to perfect glossy shine.
The boat gets on plane easily and cruises nicely around 48mph, if you push she will see 68, if you reprop you can get 70's. Survey done in 2023 and available.
Key features:
Twin 454 MAG (727hrs)
Twin Bravo 1 drives in great condition
Mirage 3 blade 23P props
Full Bimini top with zipper enclosed sides
New interstate battery on Port
New fresh water pumps
New alternator on STBD side
Full tuneup done fall of 2024
New Hydrostar EOH brake pump
New Simrad GO7 (2024)
New Fusion MS-RA70NSX with MS-ARX70W ANT
New JL/Rockford amps
New JL M7 10inch subwoofer wired for LED
Memphis Audio 6x9 which are LOUD and clear
Interior very clean and in great condition
Survey done in 2023 and all haul dry and solid (available)
New trailer winch and strap
New trailer jack
New Cockpit cover (Sunbrella) spring 2025
30-amp Shore power
On board battery charger
Fresh water tank with toilet (never used) but working
The boat will need port side trim cable replaced and does not work. STBD works so as long as you trim even everything works as should minus gauge. Tabs work as well as gauges.
Trailer bunks will need replacing soon but are typical for the age of boat and trailer. Hauls excellent!!! Has been stored in barn or under cover all season. Outside under cover for time being.
33500.00 OBO. Will be putting in storage north in the next month or so. More photos soon text
Two four eight seven six zero seven eight three seven
The boat gets on plane easily and cruises nicely around 48mph, if you push she will see 68, if you reprop you can get 70's. Survey done in 2023 and available.
Key features:
Twin 454 MAG (727hrs)
Twin Bravo 1 drives in great condition
Mirage 3 blade 23P props
Full Bimini top with zipper enclosed sides
New interstate battery on Port
New fresh water pumps
New alternator on STBD side
Full tuneup done fall of 2024
New Hydrostar EOH brake pump
New Simrad GO7 (2024)
New Fusion MS-RA70NSX with MS-ARX70W ANT
New JL/Rockford amps
New JL M7 10inch subwoofer wired for LED
Memphis Audio 6x9 which are LOUD and clear
Interior very clean and in great condition
Survey done in 2023 and all haul dry and solid (available)
New trailer winch and strap
New trailer jack
New Cockpit cover (Sunbrella) spring 2025
30-amp Shore power
On board battery charger
Fresh water tank with toilet (never used) but working
The boat will need port side trim cable replaced and does not work. STBD works so as long as you trim even everything works as should minus gauge. Tabs work as well as gauges.
Trailer bunks will need replacing soon but are typical for the age of boat and trailer. Hauls excellent!!! Has been stored in barn or under cover all season. Outside under cover for time being.
33500.00 OBO. Will be putting in storage north in the next month or so. More photos soon text
Two four eight seven six zero seven eight three seven
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Propulsion
Engines
Twin
Engine Type
gas sterndrive
HP
385 hp (each)
Engine Specs
454 mag
Drives
Bravo 1
Hours
727
H2O
fresh water
Speed:
68 max
50 cruiseBoat Type
Hull Type
Performance Vhull
Hull Material
fiberglass
Options
-
Trailer
-
GPS
-
VHF Radio
-
Stereo
Location
Country:
USA
Zip Code:
48433
Formula SR1 Thunderbird 311 Photographs
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View all Large PhotographsThis Formula SR1 Thunderbird 311 Added Sep 12, 2025
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