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1983 Buick Regal Project – Binders Full of Stopping Power

Our G Machine project gets a set of big front brakes from Wilwood to shorten its stopping distance and lap times

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Mitt Romney may have had binders full of women, but we’ve got binders full of stopping power thanks to Wilwood Engineering. Our 1983 Buick Regal T-type has slowly been emerging from its rusty past into a vehicle befitting the name G Machine. Last time we measured and ordered a set of custom wheels from Grip Equipped, matched to sticky Falken tires. And in the latest installment at the Burlington County Institute of Technology, the crew of students has taken the liberty of replacing the rudimentary single-piston OEM front brakes with Wilwood’s 6-piston, 12.88-inch front brake system (P/N 140-12298). Quite frankly, we’ve been salivating over the idea of using this kit since we first received the press release last year.

It starts with the Forged Narrow Superlite 6R differential bore radial mount calipers. Six stainless steel pistons account for a total of 4.04-inches in contact surface against a 4.74 x 2.43-inch pad. Internal fluid ports eliminate external cross-over tubes, and allow for two additional bleed screws. This light and stiff forged aluminum caliper is matched to a two-piece, drilled rotor with an asymmetrical slot pattern. Aluminum hubs, caliper brackets, hardware, bearings and seals are all included in the package. We added to that the required braided stainless steel brake line kit (P/N 220-7056), and the Aluminum Tandem Master Cylinder Kit (P/N 261-13270). The latter is going to replace the useless factory piece – stepping up to a 1 1/8-in. bore – and add in a proportioning valve. Adjusting the front and rear braking bias is essential in a non-ABS car, so don’t forget the prop valve.

Follow along as [teacher] Dave Rushen’s crew from Medford, New Jersey installs this big brake kit. Pretty soon we’ll be tackling the rearend with a cost effective solution, and adding some equally track-friendly rear brakes. Catch you next time.

1983 Buick Regal T Type G Machine Brakes 08 8/20

Carlton Wright gets started by stripping down the spindles – removing the calipers, rotors, hubs, and backing plates. Then he drills out and rethreads the backing plate holes for the caliper brackets.

1983 Buick Regal T Type G Machine Brakes 15 15/20

The finished product looks marvelous with the black painted rotors and red calipers. If this color combo isn’t your thing, there are a variety of options. Quick-Silver Nickel is pretty slick.

1983 Buick Regal T Type G Machine Brakes 20 20/20

Last but not least, the wheels were test fitted. Success! This thing is really starting to take shape, and we love how it looks. Now on to the rearend.


Wilwood Engineering
Camarillo, CA 93012
Burlington County Institute of Technology
Medford, NJ



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