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This dual rate design allows for a soft rate at ride height for superb on-road comfort and a firmer secondary rate that increases during compression for excellent payload support
allowing you to safely tow trailers
High temperature T-304 stainless steel wool for sound control
0L Inline Six 5/32" Thick Fabricated from performance CRC (core-reinforced-composite)
manley sbc 2 080 severe duty pro flo intake valves set of 8 2016-jeep-grand-cherokee-esi3290025 This dual rate design allowsManley Severe Duty Valves deliver the ultimate in strength, reliability, and high performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH 428 for exhaust and NK 844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400F, Manley exhaust valves endured 100 million cycles, while competitors failed after just
