Enginetech ES1139R Stage 2 HP RV Camshaft & Cylinder Head Kit | Performance Springs | Lifters | Swirl Polish Valves | Retainers | LIFT: .527/.553 | FITS: Chevrolet BBC Big Block 454 427 402 396
$575.00
Brand: REDLINE ENGINE SUPPLY
Condition: New
– Massive High-Lift Geometry (.527”/.553”): This Stage 2 cam features an aggressive lift profile of .527” Intake and .553” Exhaust, opening your valves significantly further than stock to force maximum airflow into the cylinders. Why Buy It: This is the spec that matters for making power—it drastically increases horsepower and mid-range torque, transforming a lazy factory 454 into a heavy-breathing performance machine.
– Muscular “Stage 2” Idle & Feel: Unlike silent factory cams, this profile delivers a throaty, noticeable idle that sounds healthy and aggressive without being unmanageable. Why Buy It: It completely changes the personality of the vehicle; when you hit the throttle, you won’t just hear the difference, you will feel a sharper, harder pull that pins you to the seat, giving you the true “Muscle Car” experience.
– Extended RPM Powerband: While standard “RV” cams run out of breath early, this cam’s high-lift design extends your usable power further up the RPM range. Why Buy It: It is the ultimate problem solver for heavy rigs—providing the relentless torque you need for highway passing, climbing steep grades with a trailer, or powering through mud, ensuring your engine keeps pulling when others would fall flat.
– 1) ENGINETECH ES1139R STAGE-2 RV HP HYDRAULIC CAMSHAFT – VALVE LIFT: 0.527″/0.553″. DURATION AT 0.050″: 224/232. 110/118 DEGREE C/L ANGLE .
– (16) ENGINETECH HIGH-PERFORMANCE HYDRAULIC LIFTERS
- 2 years warranty
- Delivery time: 1-2 business days
- Free 90 days return
Description
Description
Wake up your Big Block Chevy with the Enginetech ES1139R Stage 2 Camshaft, a serious performance upgrade designed for the 454 owner who wants more than just a stock replacement. While many “RV cams” are mild, this Stage 2 grind brings heavy-hitting specs to the table with a massive lift profile of .527” intake and .553” exhaust. This is the ultimate choice for 396, 427, and 454 Mark IV engines that need to pull hard in the mid-range and sound mean doing it. Whether you are building a high-performance tow rig, a street-strip truck, or a muscle car cruiser, this cam delivers the airflow you need to make big power.
The magic of this camshaft is in the lift geometry. By opening the valves significantly further than stock (Intake: .527 / Exhaust: .553), the ES1139R allows for massive cylinder filling and exhaust scavenging. This translates to a substantial increase in torque and horsepower, particularly from the low-mid range up through the top end. Because of the aggressive lift, this cam transforms the personality of the engine, giving you a noticeable, throaty idle that lets everyone know this isn’t a factory smog motor. It’s designed to maximize the potential of your cylinder heads, making it perfect for engines with upgraded intake manifolds and headers.
How does it feel on the street? It pulls like a freight train. This isn’t a lazy stock cam; when you step on the throttle, the response is immediate and muscular. It is classified as a “Stage 2 RV” cam because it retains the low-end torque required for moving heavy vehicles, but carries that power much further up the RPM band than a standard Stage 1 cam. If you are towing a heavy toy hauler or just want your Silverado or Chevelle to pin you to the seat, this is the profile you want.
Why buy the Enginetech ES1139R? You get professional racing-style geometry at a fraction of the price of big-name boutique brands. Enginetech manufactures these shafts to exacting tolerances to ensure durability under the stress of high-lift operation. Please note: With a lift of over .500″, we highly recommend verifying your valve spring capabilities to ensure they can handle the extra travel. If you are ready to stop playing around with mild cams and want real “seat-of-the-pants” performance, this is the camshaft for your build.
Manufacturer: ENGINETECH / ASSAULT RACING PRODUCTS
Model: STAGE 2 HP CAMSHAFT & CYLINDER HEAD KIT
Included components: 1-CAMSHAFT 16-LIFTERS 16-SPRINGS 16-VALVES 16-RETAINERS/LOCKS
Warranty: LIFETIME – IF INSTALLED BY A CERTIFIED MACHINIST
Additional information
Additional information
| Brand | REDLINE ENGINE SUPPLY |
|---|---|
| Condition | New |
| Manufacturer | ENGINETECH / ASSAULT RACING PRODUCTS |
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