How much horsepower does a 1972 LeMans 350 have?
The base engine was a 350 cubic-inch V8 with 160 SAE net hp (rated at 250 gross hp the year before). Also, the full range of 400 and 455 CID V8s was available at extra cost but for one: the 300 hp 455 CID HO V8, which was available on all LeMans models except the Luxury. Pontiac Grand Prix Facts – Powertrain Options The 400 CID 265 HP economy version of the 400 cubic inch V-8 was a no cost option. The 400 CID 350 HP V-8 was standard. The 455 CID 370 HP V-8 was part of the “SJ” option.
How much horsepower does a 1970 455 Ho have?
The 1970 model year was the only year that Pontiac produced a high compression 455 HO engine. The 360 hp engine is original to the car as is the M21, Close Ratio Muncie 4-speed transmission and the 3:31 Positraction 12 bolt Axle. The 1970 Chevrolet Chevelle SS 454 LS6, one of the most powerful production cars ever built in Detroit and arguably one of Chevy’s most impressive muscle cars ever, featured the now-legendary LS6 454 cubic-inch V8 engine. This engine officially delivered about 450 horsepower and a massive 500 lb-ft of torque.Standard engine was a 383-cubic-inch V8 delivering 335 horsepower, with performance upgrades available like the 440 Six-Barrel producing 390 hp or the legendary 426 HEMI packing 425 hp. Drivers could choose between a 4-speed manual with Hurst pistol- grip shifter or the TorqueFlite automatic.Chevrolet offered two versions of the car that contained a 454 cubic inch V8 engine—the LS5 that generated 360 horsepower, and the LS6 that hit 450 horsepower.As for horsepower, the 1970 LS6 454 pumped out 450 gross horsepower at 5,600 RPM and the Pontiac 455 maxed at 370 gross hp at 4,600 RPM. Up until this point we’ve avoided the term big-block because this is another drastic difference between these engines. The 454 is certainly a big-block, but the 455 is not.