Raylar GEN7R
Intake Manifold No Compromise, Bolt On Replacement
After years of research and development, the GEN7R intake manifold is now IN STOCK! Maximum horsepower and torque in an easy to install, 90MM / 102MM throttle body ready setup.

GEN7R Intake Manifold >
8.1L Vortec Supercharger
Street Tuner Kit Make 8-12lbs Of Boost With Our 2.9L Whipple Supercharger!
Turn your 8.1L Vortec into a 800+ horsepower monster with our 2.9L twin screw supercharger kit.

2.9L Whipple Twin Screw Supercharger >
Know Every 8.1L
Performance Secret Detailed Specs, Drawings & DIY Performance Tips
Turning factory engines to aftermarket 1000+ horsepower monsters, we cover the ins and outs of increasing horsepower and modifying torque for increased performance to suit your needs and application.

Get Your Copy Today! >
8.1L / 496cid
Performance Parts Turn Your Stock 496 / 8.1L Into One Of These!
Performance parts for Chevrolet GM GEN7 BBC Vortec 8100 / 8.1L / Mercruiser 496 MAG / 496 MAG HO / Volvo Penta 8.1Gi & 8.1GXi / Crusader Captain’s Choice 8.1 MPI & 8.1 HO MPI in marine, truck and motorhome applications.

8.1L / 496cid Performance Engine Kits >
Vortec 8100 / 496 MAG
511cid Stroker Kit There’s No Replacement For Displacement
Turn your Chevy / GM Vortec 8100 / 8.1L into a tire shredding monster with our fully forged stroker assemblies.

On the water, our 511cid stroker kit is a perfect fit for Mercruiser 496 MAG applications looking for a forged bottom end replacement.

Forged Stroker Kits >
Replace Your BBC
Vortec 8.1L / 496cid Looking For Better Mileage & More Power From Your Big Block Chevy?
Replace your old-school big block Chevy with a modern, GEN 7 Vortec 496. Raylar hot rod / muscle car performance parts packages allow you to make big horsepower and torque in either fuel injected or carbureted applications.

Hot Rod / Muscle Car Performance Kits >

Vortec 8.1L / 496cid Performance Parts

Direct Fit 540 Crate Engines Brand-new 8.1L replacement crate engines with forged components available in 540cid displacement.

vortec 8.1l 496cid cnc aluminum cylinder heads

CNC Aluminum Cylinder Heads Raylar Big Power aluminum cylinder heads outperform all other 8.1L cylinder heads.

vortec 8.1l 496cid camshaft spring kit valvetrain

Camshafts & Valvetrain Camshafts for every 8.1L application, from heavy towing applications to ground thumping street machines.

Stroker Kit Rotating Assemblies Turn your 496cid into a 511cid or 540cid torque monster with our engine kits.

Vortec 8100 / 8.1L Performance Parts

Get More Pulling Power & Better Fuel Economy

Our kits give you the horsepower, torque and sound you’ve been looking for. Raylar offers street performance kits for Chevy and GM trucks, motorhomes, hot rods and muscle cars with the Vortec 8.1L / 496.

Vortec 8100 Performance Packages

Mercuiser 496 MAG / 496 MAG HO
Performance Parts & Packages

Proven Marine Performance Packages

Go faster on the water! Raylar performance packages allow your 496 to produce massive amounts of power without sacrificing reliability. Whether your power boat is running boost or naturally aspirated, we have the correct performance parts for your application.

496 MAG Performance Parts