This performance hydraulic roller camshaft is built for the Chevrolet 4.3L V6, offering strong mid-range torque with improved street manners thanks to a STANDARD wider 110° lobe separation angle. The broader LSA smooths out idle quality while still maintaining solid performance characteristics, making this camshaft ideal for high-compression street engines or mild boosted applications.
Camshaft Specifications:
Duration @ .050": 209° (Intake & Exhaust)
Lift: .272"
Lobe Separation Angle (LSA): 110°
RPM Range: 1,600 – 5,200 RPM
Idle Quality: Slightly lopey but smoother than 108° LSA
Valvetrain: Hydraulic Roller Lifters
LOBE SEPARATION OPTIONS
Valve Timing Events (@ .050" Tappet Lift)
(Timed for 110° LSA and 209° duration @.050)
Intake Opens: 1.5° BTDC
Intake Closes: 38.5° ABDC
Exhaust Opens: 46.5° BBDC
Exhaust Closes: 1.5° ATDC
Intake Duration: 209°
Exhaust Duration: 209°
Overlap: ~3° (milder than the 108° version, improving idle and vacuum)
🔹 108° LSA — Valve Timing Events (@ .050")
Intake Opens: 2.5° Before TDC (BTDC)
Intake Closes: 36.5° After BDC (ABDC)
Exhaust Opens: 44.5° Before BDC (BBDC)
Exhaust Closes: 0.5° After TDC (ATDC)
Overlap: ~3°
Intake Duration: 209°
Exhaust Duration: 209°
🔹 112° LSA — Valve Timing Events (@ .050")
Intake Opens: 0.5° BTDC
Intake Closes: 40.5° ABDC
Exhaust Opens: 48.5° BBDC
Exhaust Closes: 2.5° ATDC
Overlap: ~3°
Intake Duration: 209°
Exhaust Duration: 209°
Performance Characteristics:
Torque Curve: Broad and flat with stronger vacuum signal—better for EFI and power brakes
Powerband: Pulls hard from low range to upper RPMs (1,500–5,200 RPM)
Idle: Choppy but smoother than a tighter LSA cam—great for daily-driven performance builds
Recommended Compression: 9.3:1 – 10.5:1
Best With: Free-flowing exhaust, intake upgrades, and proper ECU tuning (if EFI)
Summary:
This camshaft offers a perfect balance between performance and driveability for 4.3L V6 builds. The 110° LSA reduces idle roughness and improves vacuum, making it better suited for street cars that still want a noticeable cam sound without compromising too much on smooth operation. With 209° duration @.050" and .272" tappet lift, it’s a solid choice for naturally aspirated or mildly boosted engines looking for real-world performance gains across the board.