Moroso GM LT Billet Aluminum Valve Covers - Engine Builder Magazine

Moroso GM LT Billet Aluminum Valve Covers

Moroso has introduced GM LT1/LT4/L86 Billet Aluminum Valve Covers Part No. 68494 that are bolt-on replacement for Corvette/Camaro and other applications with LTI/LT4/L86 cylinder heads.

Moroso has introduced GM LT1/LT4/L86 Billet Aluminum Valve Covers Part No. 68494 that are bolt-on replacement for Corvette/Camaro and other applications with LTI/LT4/L86 cylinder heads.

Each valve cover is CNC machined from a billet aluminum bar and is 1-½” tall to clear most engine accessories and aftermarket valve train assemblies. Both valve covers have ports to tie into the factory PCV lines and have integral coil pack mounts that accept OEM & LS2, LS3, LS7 & L98 style coils.

One valve cover features a oil fill with a CNC machined cap with o-ring and a mounting tab for the factory dipstick tube. Cylinder head mounting area has an o-ring groove that accepts GM#12619787 Valve Cover O-Ring Gasket. Even though these valve covers are light in weight, they are thick enough for the engine builder to be able to add fittings at the top and ends. The covers can be polished, chromed, powder coated or left as-is for a race look. 

You May Also Like

Jesel Camshaft Belt Drive Systems

Built with the finest materials available, our Camshaft Belt Drives feature several performance and valve train stability enhancements over traditional timing chains and gear drives. The Gates patented High Torq Drive™ reinforced belt spins dry on a steel crank pulley and a hard coated aluminum upper pulley and helps isolate crankshaft harmonics to the valve

Built with the finest materials available, our Camshaft Belt Drives feature several performance and valve train stability enhancements over traditional timing chains and gear drives. The Gates patented High Torq Drive™ reinforced belt spins dry on a steel crank pulley and a hard coated aluminum upper pulley and helps isolate crankshaft harmonics to the valve train. Teflon® coated high vacuum cam and crank seals are long lasting and insure the extreme amount of vacuum found in today’s race engines stays sealed in the crankcase. Cam timing can be externally adjustable ±10° in minutes to dial in the power curve and cam thrust can be reduced to as little as .001” with our available dual thrust cam adapter assemblies. 

Hot Shot’s Secret Introduces Adrenaline R82+ Competition Diesel Performance Additive

Hot Shot’s Secret extends the company’s Adrenaline® Racing product line with a new competition diesel performance additive – ADRENALINE R82+™. Formulated for competitive off-road vehicles, ADRENALINE R82+ combines a powerful cetane improver with Hot Shot’s Secret’s new ADRENALINE Racing Top Lube fuel lubricant to decrease wear by up to 41% in ASTM testing. The result is a diesel

Reid Machine’s 392 Shoe Rocker

The design of Reid Machine’s rocker arms provides the stability required in Top Fuel, Blown Alcohol, Injected, Fuel, and Pro Mod categories.

COMP Cams HRT Camshaft for Gen III Hemi

Swap your Gen III Hemi’s factory cam for a COMP Cams HRT Camshaft and you’ll boost horsepower without beating up your valvetrain. The hydraulic roller cams have COMP’s Low Shock Technology profiles designed to maximize horsepower, improve stability at higher RPM, and are gentle on the valve springs for longer life.  Related Articles – Amsoil

Edelbrock Performer RPM Gen III Hemi Cylinder Heads

Factory cylinder heads for Gen III Hemi engines are pretty darn good. Edelbrock’s Performer RPM Gen III Hemi Cylinder Heads are even better. The fully assembled heads feature fully CNC-machined combustion chambers, CNC-profiled bowls, and CNC-profiled port entries/exits for improved airflow—up to 337 CFM on the intake side at .700-inch of valve lift. Edelbrock says

Other Posts

Diamond’s Mercedes 6.2L M156 Piston Kits

Diamond’s Mercedes 6.2L M156 pistons are rated for 1,400 HP.

World Products’ Motown II SBC Iron Block

The Motown II can be bored to a maximum of 4.200″ with clearance for a 4.000″ crank.

Graymills BTU Series Digital Ultrasonic Benchtop Washers

Small footprints make these units ideal for job site “cell” cleaning applications or where space is critical.

Supertech Valves

A single-groove valve allows for more contact surface area, which leads to less friction.