GM offers 2 new engines

...one of which provides the most is the "Most Powerful Small-Block Ever"

LS7 Crate Motor

Chevrolet unveiled the 2006 Corvette Z06 at Detroit's North American International Auto Show in January, and now GM Performance Parts is unveiling the crate engine version of the LS7 engine that powers it. This latest Z06, billed as "the fastest, most powerful car ever offered by Chevrolet and GM," has enthusiasts looking for that kind of power in a crate engine. GM Performance Parts is ready to end that search as it offers the LS7 (P/N 17802397) at GM dealerships and Authorized Centers, nationwide in August.

This small-block V-8 dreams big, displacing big-block cubic inches at 7.0 Liters (427 cubic inches) and big-block power at 500 hp at 6200 rpm. It also benches 475 lb.-ft. of torque at 4800 rpm. Helping to create its high power and high revving capability are details such as cylinder heads with computer numerical control (CNC) intake and exhaust ports and combustion chambers - which creates ports with surgical accuracy for maximum power production. In addition, the intake valves and connecting rods are made out of high-strength lightweight titanium.

The LS7 engines are assembled by hand at GM Powertrain's new Performance Build Center in Wixom, Mich. Pricing will be announced mid-summer; however, early estimates indicate that the GMPP LS7 crate engine will sell for well below the cost of comparable custom-built aftermarket engines.

Enthusiasts who must have the latest technology, maximum horsepower and the largest production cubic-inch displacement small-block ever built will be able to purchase the LS7, as well as other GM Performance Parts crate engines, blocks, heads and components, from GM dealerships or GMPP Authorized Centers nationwide. Following the release of the LS7 in a crate GMPP will offer select parts, such as the crankshaft, connecting rods, cylinder heads and valves separately, and in kit form. To locate the closest GM dealership or GMPP Authorized Center or dealership, call 1-800-GM USE US or visit www.goodwrench.com.

LS7 specifications:

Ram Jet ZL1 - For Horse Collectors Only

Kicking out 510 hp and featuring the legendary all aluminum ZL1 cylinder block, the Ram Jet ZL1 is sure to be a highly sought item by collectors for years to come. Only 200 of the limited edition fuel injected crate engines were produced and only about 50 left to be found from GM dealerships. Each engine carries a special three-digit serial number machined into its unique cast logo Ram Jet ZL1 valve covers.

The ZL1 block is produced from the original tooling used in 1969, but includes a few modern updates such as provisions for a roller camshaft and improved main webs. With 510 horses on tap thanks to its 10.2 to 1 compression ratio and 640/598 lift solid roller cam, the Ram Jet ZL1 uses GMPP’s Ram Jet fuel injection, offering great throttle response, torque and drivability.

The Ram Jet ZL1 comes complete with ignition, fuel system, water pump, starter, automatic transmission flexplate, EMC and wiring harness for quick and easy installation.

Consumers can purchase GM Performance Parts, including the Ram Jet ZL1, from any GM dealership or GMPP Authorized Center. To locate the closest GMPP Authorized Center or dealership, call 1-800-GM USE US or visit www.goodwrench.com.