Description

LS3 Crate engine with upgrade camshaft.  GM engineers took the production 430HP LS3 and added their Hot Cam with 0.525″ lift on both the intake and exhaust along with 219-degree/228-degree duration specs.  This is less lift on the intake side than the stock LS3 cam, but with considerably more duration.  As a result, peak horsepower comes earlier than the stock LS3 and the torque curve remains flat higher on the rpm band.

Rocker arms with a 1.7:1 ratio sit on top of the heads whilst in the bottom end, the aluminum 6-bolt/main block features 4.06-inch bores and a 3.62-inch stroke nodular iron crankshaft, powdered metal rods, and aluminum pistons (10.7:1 compression ratio).  Cylinder heads are the stock LS3 / L92 style.

The LS Hot Cam created a jump in horsepower for this LS3 crate engine from 430 to 495hp whilst the torque increased from 424 lb-ft to 475.

These engines are now supplied with the alternative oil pan and no exhaust manifolds – rather than the Corvette items.

Bank transfer is required to purchase this unit – contact us for details.