An LS-swap happens every day. But a triple-charged LSA engine shoehorned into a Buick Regal Grand National? Hold the phone.
We, too, were slightly perplexed at the notion someone could take it upon themselves to de-bone one of the most famous Buicks of all time (the GNX and/or Y-Job might take the cake), we quickly realized the owner of this particular 1987 Grand National poured an excessive amount of cash and love into the car.
Funny thing is, the original supercharged 3.6L V6 was first stroked to 4.1L and tuned to run on E85 before the owner said “hell with it!” and ditched it for a twin-turbocharged 6.2L LSA with a mere 5,200 miles. Did we mention that the original supercharger is also present?
Yup, in front of you is a triple-charged Grand National that spits out a tire-melting 965 hp and 931 lb-ft of torque. The whole thing was then tuned by Forced Induction Tuning to run on E85 with a healthy 24 pounds boost. ‘Merica.
Thankfully, all that power is channeled through a custom-built Lonnie Diers Extreme Stage III 4l80E transmission with a custom billet gear set for gears 1 and 2. It even rocks a shorter driveshaft, power steering, a reinforced frame, an overhauled cooling system, while custom F-body engine mounts (it’s a G-Body, we know), from Spohn Performance help house the gargantuan powerplant.
Apparently the owner took some flak on the forums for his creation and we can see purists may cry foul at the sight, however, we’re just happy to see enthusiasts pushing the boundaries of performance. Even if it does piss off a few people.
Hop on over to the build thread for all the juicy details on this crazy Buick Grand National build.