580 ci LSx V12 on Dyno

9.5 L LSx V12 on the dyno

Race Cast Enginnering is a company in Melbourne, Australia known for their custom LSx V12 engine. The recently set one of their 580 ci (9.5 L) V12s on a dyno for testing. The engine made 764 hp at 6,500 rpm and 698 lb-ft of torque at 4,900 rpm with 10.4:1 compression and 227/228 camshaft. The … Read more

Upgrade Guides for LSx V8

LS3 V8

On All Cylinders compiled all their LSx engine spec and upgrade guides into a single list. Now you can easily find a guide to help upgrade your Gen 3 or Gen 4 LSx V8 engines.

Sixteen Power’s 2000 hp Twin-Supercharged V16

Sixteen Power twin-supercharged LSx V16

Earlier this year we shared Sixteen Power‘s custom 14.0 L V16 on Katech’s dyno making 1,159 horsepower and 1,122 lb-ft of torque on 89 octane fuel. The V16 features a single block and billet crank but uses four LSx heads. The company stated after developing the naturally aspirated model they were moving on to forced … Read more

Sixteen Power’s V16 Makes 1159 hp

Sixteen Power LSx V16 on Katech dyno

Sixteen Power is a company in Detroit, Michigan building a 14.0 L V16 based on LSx architecture for Marine applications. The company partnered with Katech to develop and test the custom V16 engine. The company recently released a video showing the V16 in Katech’s dyne room for durability testing. Watch as the naturally aspirated V16 … Read more

Katech Pushes a Twin-Turbo LT5 V8 to 1486 hp

Katech twin-turbo LT5 V8

Katech is back with an update on their LT5 build series. They showed the LT5 V8 making 1,013 hp and 1,011 lb-ft of torque in a previous update. This time around the company replaced the supercharger with a Hellion twin-turbo kit, Turbosmart boost controller, and wastegate. They also ported the head and the engine made … Read more

Katech LT5 V8 Makes 1013 hp

Katech supercharged LT5 V8

Katech started a new engine build series on the supercharged 6.2 L LT5 V8. They started with a stock LT5 and their Xtreme-DI fuel injection system which made 788 hp and 762 lb-ft of torque on 93 octane fuel. Then they upgraded the injectors and switched to E85 fuel where it made 925 hp and … Read more