When it comes to building or rebuilding a high-performance engine, every component matters. One of the most critical parts in any engine is the camshaft, which controls valve timing and directly impacts power output. For those looking to customize their cam profiles, a high-performance blank camshaft is the ideal starting point.
The benefits of using a high-performance blank camshaft
How blank camshafts compare to pre-ground cams
Key considerations when selecting a blank camshaft
Top applications in racing and street performance
A blank camshaft is an unfinished camshaft that has not yet been ground with lobe profiles. Unlike pre-ground cams, blank camshafts allow engine builders and machinists to create fully custom cam profiles tailored to specific needs. These cams are typically made from high-quality billet steel or ductile iron for maximum strength.
Customization – Blank camshafts let you design lobe profiles for optimal power, torque, and RPM range.
Precision Fit – Since they're ground to your exact specifications, they ensure perfect valve timing.
Durability – High-quality materials like 8620 steel or chilled iron provide superior wear resistance.
Performance Gains – Custom cams can improve horsepower by 10-20% over stock profiles in tested dyno runs.
While pre-ground camshafts are convenient, they lack flexibility. Here's how they compare:
| Feature | Blank Camshaft | Pre-Ground Camshaft |
|---|---|---|
| Customization | Fully customizable | Limited to preset profiles |
| Cost | Higher initial cost | Lower upfront cost |
| Performance | Optimized for exact needs | Generic performance |
| Best For | Race engines, high-end builds | Stock rebuilds, mild upgrades |
When selecting a blank camshaft, consider:
Material – Billet steel (stronger) vs. ductile iron (cost-effective).
Core Hardness – A harder core (like 55 HRC) ensures longevity.
Compatibility – Must match your engine's journal size and lifters.
Grinding Service – Some suppliers offer profiling services for a complete solution.
Drag Racing – Ultra-aggressive lobes for maximum top-end power.
Road Racing – Balanced profiles for mid-range torque and reliability.
Street Performance – Mild custom grinds for drivability and power gains.
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