The small-block V8 has long been the go-to engine for hot rodders, but other possibilities exist. Scoggin Dickey Parts Center (SDPC) has been experimenting with a 4.3-liter V6, the kind used in GM full-size pickups from 2014 to 2021, adding twin turbos. Their creation, dubbed Danny LVito, has made a staggering 1,403 horsepower and 1,125 lb-ft of torque on the dyno with just 14.5 psi of boost and stock internals. The engine's success can be attributed to a long list of upgraded parts, including Wiseco pistons and Molnar rods kit, a custom ground camshaft, Johnson 2110R lifters, CHE Rocker Trunions, a Bell water-to-air intercooler, Holley hi-ram intake manifold, and a 102-mm throttle body from Motion Raceworks. The turbos are HPT 6262 units connected to modified cast exhaust manifolds from an L8T V8. The stock variable valve timing and cylinder deactivation were eliminated as fuel economy wasn't a top priority here. ...
The small-block V8 has long been the go-to engine for hot rodders, but other possibilities exist. Scoggin Dickey Parts Center (SDPC) has been experimenting with a 4.3-liter V6, the kind used in GM full-size pickups from 2014 to 2021, adding twin turbos. Their creation, dubbed Danny LVito, has made a staggering 1,403 horsepower and 1,125 lb-ft of torque on the dyno with just 14.5 psi of boost and stock internals.
The engine’s success can be attributed to a long list of upgraded parts, including Wiseco pistons and Molnar rods kit, a custom ground camshaft, Johnson 2110R lifters, CHE Rocker Trunions, a Bell water-to-air intercooler, Holley hi-ram intake manifold, and a 102-mm throttle body from Motion Raceworks. The turbos are HPT 6262 units connected to modified cast exhaust manifolds from an L8T V8.
The stock variable valve timing and cylinder deactivation were eliminated as fuel economy wasn’t a top priority here. For the max-power dyno run, SDPC used VP-Racing MS 109 fuel fed through FID 1,300cc injectors, and set the boost to 33.2 psi. This engine proves that the 4.3-liter V6 is more than just a basis for tuning – it can be a game-changer for hot rods.
The LV3 engine’s potential has been proven with dyno results, and its widespread use in GM full-size pickups makes it a familiar and accessible choice for tuners. The LB4, the turbocharged 4.3-liter V6 that powered the GMC Syclone and Typhoon, is another example of an engine that can produce impressive numbers with the right modifications.
The twin turbo 4.3L V6 is a testament to the versatility of GM engines and the potential for hot rodders to push the limits of performance. With the right parts and a bit of creativity, this engine can deliver results that would be hard to achieve with a traditional V8.
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