Go inside GM’s Performance and Racing Center to check out the new 1,004-hp crate engine’s revolutionary cylinder heads.

Ever had to remove the intake manifold just to replace the starter ... found a home in GM SUVs and has been long forgotten is the Vortec 4200. While it was labeled the Vortec, it was actually ...

It was dubbed LT1 as an homage to the Mighty Mouse’s 1970 highwater mark. The new LT1 used a new block, intake manifold, and cylinder heads along with a “reverse cooling” system, but the basic design, ...

A new intake manifold was also part of the 2009 upgrade and helped boost output well beyond 300 horsepower. Gearheads are always looking to wring a little extra power out of any engine ...

including the Chevy 5.7L Vortec, is engineered to deliver more torque, horsepower, as well as engine response and improve fuel efficiency. It has an overhead valve configuration coming with 2 valves ...

Yep, you can do that too, so long as you have the right intake manifold. A lot of this is possible ... of some of the higher-performance engines. Vortec Truck and SUV Variants While the ...

No problem. Toss LS3 heads onto an LS2 block? Yep, you can do that too, so long as you have the right intake manifold. A lot of this is possible due to the similarities shared across the LS line ...

1.60" exhaust valves), Edelbrock Super Victor Vortec intake manifold, Edelbrock Performer RPM hydraulic roller camshaft installed at 105-degree intake CL (234/238 @ .050, 296/300 adv, .574/.

an aluminum Edelbrock RPM Performer Vortec Air Gap intake manifold, and a 750-cfm Holley mechanical-secondary carburetor. While we went to the effort to machine our heads to accept the 0.480-inch ...