In many ways, the 1994-1996 Impala SS was a holdover from the last of the true muscle cars. It was a big, four-door sedan with a powerful V8 - a land yacht that could go like hell. It was a few years before its time though, and missed out on one of the best engines in GM’s lineup, the LS1 motor.
One forum member over at LS1tech
performed the surgery on his own time, also choosing to go with the badass “blacked out” look.
Photo Credit: 383lt1impala
Member 383lt1impala could be described as an overt Impala fan. He not only performed this swap, his mint condition Impala only has 10,000 miles on it. Rather than just dropping a stock LS1 into the Impala, he gave it a makeover with CNC ported and polished 806 heads, swapped the camshaft with an MS4 model, and bumped the compression up to 12.5:1.
The engine is going to be twin-turbocharged, with two T62 t3/t4 turbochargers pumping out around 7-10 psi, and will make around 500-600 horsepower and ft/lbs of torque. It will be fed by a Demon
850 carburetor and a high-rise Edelbrock
Victor Jr. intake. A Moroso
oil pan, engine swap mounts, and longtube headers from eBay help complete the swap.
A 4-inch cowl induction hood and blacked out headlights and tail lights give it an angry look. Backing up this monster engine (with Probe
forged internals) is a TH400 transmission with a transbrake and 3500 stall converter. Upgraded brakes with drilled and slotted rotors all over are used to stop this two-and-a-half ton beast.
There are still a few things left to do, including adding a roll cage, mini-tub, custom driveshaft, and some sticky Mickey Thompson
tires. It should be one mean ride when it’s done.