Engines

Geaux Moto created several wild Miatas at their company in Louisiana. Take for example the Ecoboost-powerd NC Miata they built for track use. This time around we are sharing a 2009 Mazda Miata (NC) Geaux Moto built to compete in the GTC class of Optima Ultimate Street Car Challenge. In the engine bay Geaux Moto...

Fat Fender Garage upgraded this classic 1968 Ford F-100 with modern power and handing. In the engine bay they swapped a supercharged 5.2 L Predator V8 from a Mustang Shelby GT500 paired to a 10R80 10-speed automatic transmission. The motor features forged steel crank and rods, forged aluminum pistons, 2.65 L Eaton TVS supercharger, Fat...

Bjørnar Eskedal is back with an update on his custom 373 cc inline-six. For the past couple of years Bjørnar has been building a custom inline-six using engine parts from multiple 1989 Suzuki GSX-R250 motors. Bjørnar has finished building the block, head, head gasket, billet crankshaft, and one of the camshafts. The completed motor features...

This 1965 Corvette was built by Classic Car Studio with a 6.2 L LS3 V8 capable of 525 hp (386 kW) and 486 lb-ft (658 Nm) of torque. The drivetrain backing the motor is a 4L75E four-speed automatic transmission and 9-inch independent rear end. Classic Car Studio upgraded the handling with a Roadster Shop Fast...

Velocity Restorations built this 1973 International Harvester Scout II with a 6.2 L LT1 V8 capable of 455 hp (334 kW) and 455 lb-ft (616 Nm) of torque. Velocity Restorations paired the motor with a 10L80 10-speed automatic transmission and transfer case. Power is split between a Dana 44 front axle and Dana 60 rear...

Velocity Restorations built this 1973 International Harvester Scout II with a 6.2 L LT1 V8 capable of 455 hp (334 kW) and 455 lb-ft (616 Nm) of torque. Velocity Restorations paired the motor with a 10L80 10-speed automatic transmission and transfer case. Power is split between a Dana 44 front axle and Dana 60 rear...

Leroy Engineering is a company in Chardon, Ohio specializing in Mazda Miata maintenance, restoration, and performance. However when they were asked to build a special 1970 MGB GT they accepted. The company swapped the factory inline-four for a 6.2 L LS3 V8 capable of at least 430 hp (316 kW). Leroy Engineering flipped the manifolds...

This 1968 Oldsmobile 442 visited V8 Speed & Resto Shop for performance upgrades. The company used their years of experience to restore rusty areas while swapping a modern powertrain and suspension. In the engine bay they installed a 6.2 L LS3 V8 from Blueprint Engines capable of 530 hp (395 kW) and 495 lb-ft (671...

Fast Freddie’s Rod Shop created this 1971 Plymouth Duster at their company in Eau Claire, Wisconsin. In the engine bay they installed a supercharged 6.2 L Hellcat V8 crate motor producing 652 hp (479 kW) and 613 lb-ft (831 Nm) of torque to the wheels. The drivetrain consists of a Bowler T56 Magnum six-speed manual...

Ben Herron from Blackdragon Racing in New Zealand built his 1984 Toyota Starlet (KP61) for touring car racing. Ben spent many hours developing the car and recorded the progress in the build thread. Ben acquired the Starlet with Toyota 3S-GE BEAMS inline-four. Eventually Ben wanted to go in a different direction for the power plant....

Overused wanted to build a unique 2003 Ford Mustang. They accomplished this by swapping a 6.8 L Triton V10 taken from a 2001 Ford F-550 truck. The V10 uses NPI rotating assembly, PI heads, Comp Stage 2 camshafts, modified BBK shorty exhaust headers, and E-350 oil pan. The motor also received a triple-core radiator and...

Killa Conversions & Performance is a company in Landsborough, QLD, Australia that specializes in LSx and Coyote V8 swaps. The company is selling a 2023 Nissan Navara used for engine conversion R&D. The Nissan Navara Pro4x is no longer powered by a 2.3 L turbodiesel inline-four. Instead Killa Conversions & Performance swapped a 6.2 L...

This 1984 Pontiac Fiero SE is powered by a 4.6 L Cadillac Northstar V8. The motor runs on four Dellorto carburetors and an Electromotive HPV-1 ignition system. Behind the V8 is a Porsche 901 five-speed manual transaxle. The chassis needed to be stretched 12 inches to accommodate the powertrain's longitudinal layout. The builder installed a...

This 2001 Honda Integra Type R (DC2) arrived at BYP Racing as a rolling shell. The company built the car in several weeks for roll racing. Under the hood is BYP Racing's K24 1200 hp longblock featuring a sleeved K24A3 block, Diamond forged pistons, Carillo K24 aluminum rods, Honda S2000 oil pump kit, and Turbosmart...

Logan Melson from OER Engineering is responsible for this unique Ford Ranger. He spent many hours building the compact truck with a powertrain capable of 600+ hp (441+ kW). Under the hood Logan swapped a turbocharged 3.0 L 2JZ inline-six. It features factory internals and camshafts, Tomei oil baffle pan, and custom exhaust manifold. A...