Manley 11744-8 Severe Duty Pro Flo Intake Valves Small Block Chevy - 2.100

The Manley 11744-8 Severe Duty Pro Flo Series intake valves are engineered for high-performance and racing applications in Small Block Chevrolet Gen 1 engines. These valves deliver exceptional durability and flow characteristics for bracket racing, oval track, and high-performance street builds.

Key Features:

• NK-844 stainless steel construction for superior strength and heat resistance
• 2.100-inch head diameter with 7-degree dish design
• 11/32-inch (0.3415-inch) stem diameter with chrome plating
• 5.111-inch overall length (+0.200 longer than stock)
• Pro Flo undercut stem design for improved airflow
• Swirl polished underhead area and fully machined combustion face
• Hardened valve tips eliminate need for lash caps
• 0.050-inch margin width and 0.080-inch seat width

Manley Severe Duty valves are proven through rigorous fatigue testing, enduring up to 100 million cycles at 40,000 psi and 1,400°F—demonstrating 1,000 times better fatigue life than competing valves. The NK-844 intake valve material offers over four times the ultimate tensile strength of competitor materials at high temperatures.