The Roadmaster was Buick’s largest vehicle offering in the ’90s, both in sedan and Estate wagon form. It featured the LT1 V8 and 4L60E automatic transmission from the Corvette
The Roadmaster would have never received such a unique engine transplant if it weren’t for the needs of its corporate siblings: the Cadillac Fleetwood needed a powerplant strong enough to haul its 4500 lb weight, and the Impala SS needed enough firepower to be worthy of the Super Sport badge. In the interest of minimizing platform complexity, Chevrolet simply made the LT1 standard for all three cars
The Corvette’s LT1 was slightly de-tuned for these models thanks to a different camshaft (designed to improve low-end torque and a smoother idle) and an ECU re-map to work with regular fuel instead of premium. It also ditched the Corvette’s aluminum heads for a more durable set of cast iron heads. Other differences include 2 bolt main bearing caps (vs 4 in the Corvette) and intake resonators to reduce induction noise
Despite the reduced performance, the de-tuned V8 was enough to propel the Roadmaster far beyond the speed rating of its factory “comfort” tires, so it had to be limited to 108 MPH. To get an idea of how fast the car could go without the limiter, have a look at the Impala SS (which featured the same engine, no limiter, and shorter 3.08 gearing). The SS could hit 156 MPH – and that number happens to be precisely limited by the critical resonance of the Impala’s driveshaft (if not for that, the Impala could surpass 160 MPH)
When equipped with the towing package (w/ Class II trailer hitch and transmission cooler), both the sedan and the Estate feature a 5,000 tow rating. However, only the Estate had the option of increasing its towing capacity to 7,000 lbs when using a weight-distributing tow hitch, dual sway controls, 35 PSI rear tire pressure, and disabling the Electronic Level Control system
A stainless steel dual exhaust system came standard, and a limited-slip differential could be optioned for only $100
While the Corvette’s LT1 opens the door to a vast amount of aftermarket support and performance upgrades, it has been found that swapping out the stock 2.93 final drive for a shorter ratio provides the most noticeable improvement in both performance and towing
Key Model Year Changes:
Extensive changes for 1994. First year of the LT1 V8
First year of the electronically controlled 4L60E
Completely redesigned dashboard to accommodate a (new) passenger-side airbag and a full-width knee-blocker. Steering wheel and gauges are also new
The following year (1995) received new enlarged foldaway style mirrors, new body side moldings, and a revised radio. First year of the heated and memory seat option. A shade was added to the Vista Roof and cargo cover of the Estate wagons
Besides the switch to OBDII (which dropped the power rating by 5hp), very few changes occurred for 1996 (final model year), which include GM’s long life coolant and automatic climate control as a standard feature
53k original miles
Dark Sapphire Blue
Concert Sound audio system
2 sets of keys and additional floormats are included
*SAE rated from factory. May not reflect current output.
*Performance numbers pulled from either the factory brochure or reputable automotive road tests.
*Base price when new does not reflect original MSRP of this particular car, nor does it reflect what the original owner paid for it.
*Advertised price at time of posting. Sellers can raise or lower prices on their original ad at any time. Click on the original ad to view current price/availability.
Mileage Disclaimer: NOC has not confirmed if the mileage stated by the seller is true and accurate. It is up to the buyer to verify these claims. Vehicle history reports, service records stating mileage, and even inspections of odometer tampering are recommended.