COMP CAM 01-456-8 Xtreme Marine 242/248 Camshaft Kit | HP Lifters | Billet Timing Set | FITS: 96-01 CHEVY MERCRUISER 454 7.4L 7400 VORTEC – 2800-6200 RPM – .566″/.566″ Lift – Built for Speed
$1,025.00
Brand: REDLINE ENGINE SUPPLY
Condition: New
– COMPETITION CAMS 01-456-8 MARINE CAM: Expertly ground with an aggressive .566″/.566″ lift and a 112° LSA. You should buy this to unlock an extreme marine power band from 2,800 to 6,200 RPM, delivering the massive top-end horsepower required for high-performance hulls.
– BILLET DOUBLE ROLLER TIMING SET: Features a CNC-machined billet steel crank sprocket and a heavy-duty double-row chain. This is a critical marine upgrade to ensure perfect timing synchronization and prevent chain stretch during the intense vibrations of 6,000+ RPM operation.
– PREMIUM PERFORMANCE ROLLER LIFTERS: Built with high-capacity needle bearings and precision-ground axles. You need these to provide the superior stability required to handle the high ramp speeds of the .566″ lift, preventing lifter “pump up” and ensuring long-term durability.
– OPTIMIZED FOR GEN 6 454 (1996–2001): Specifically tailored for the unique oiling paths and 1-piece rear main seal architecture of late-model Chevy Big Blocks. This is a high-output performance solution built for modern marine durability.
– INTIMIDATING PERFORMANCE IDLE: The 112° LSA produces a sharp, rhythmic lope that sounds incredible through marine headers. It provides a true “race-boat” personality while maintaining the vacuum necessary for consistent starting and low-speed docking.
- 2 years warranty
- Delivery time: 1-2 business days
- Free 90 days return
Description
Description
The Pinnacle of Marine Performance for Your Gen 6 Big Block If you are looking to push your Chevy 454 to the absolute limit of high-speed marine performance, the Competition Cams 01-456-8 is the ultimate weapon. This camshaft is precision-engineered for the 1996–2001 Gen 6 block, specifically targeting the extreme demands of high-performance offshore boats and jet boats. It is designed for the enthusiast who lives in the upper RPM reaches and demands a engine that never stops pulling.
Aggressive Lift for Total Airflow Domination The 01-456-8 features a symmetrical .566″/.566″ lift and a tight 112° Lobe Separation Angle. This specific marine geometry is optimized to overcome the backpressure of water-cooled exhaust systems while maximizing high-RPM horsepower. It creates a ferocious power band that begins at 2,800 RPM and screams all the way to a 6,200 RPM redline. The 112° LSA provides a vicious, aggressive lope at idle that signals pure performance before you even leave the dock.
What to Expect: High-Winding Adrenaline Once installed, this cam transforms your 7.4L into a high-velocity powerhouse. You’ll experience an incredible surge of power in the mid-to-high range, allowing your boat to maintain blistering top speeds and respond instantly to throttle inputs. While this is a high-RPM profile, it is engineered to remain stable during sustained wide-open throttle runs, providing the rock-solid reliability you need when you are miles from the shore.
Why You Should Buy: The Ultimate High-Stress Marine Trio This listing is the definitive choice for those building a “no-excuses” marine engine. By matching this extreme Competition Cams profile with Premium Performance Roller Lifters and a Billet Double Roller Timing Set, you are protecting your investment against the unique stresses of high-speed boating. You should buy this kit to gain absolute timing accuracy and valvetrain stability, ensuring your Chevy dominates the water with unmatched authority.
Manufacturer: COMP CAMS / REDLINE USA
Model: 454 7400 GEN-6 MARINE CAMSHAFT KIT
Included components: 1-CAMSHAFT 16-LIFTERS 1-TIMING SET
Warranty: LIFETIME IF INSTALLED BY A CERTIFIED MACHINIST
Additional information
Additional information
| Brand | REDLINE ENGINE SUPPLY |
|---|---|
| Condition | New |
| Manufacturer | COMP CAMS / REDLINE USA |
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