Manley Severe Duty Series BBC Stainless Steel Exhaust Valves 1.880in Dia 5.422in L - Set of 8Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust valves, tested at 40,000 psi and 1400? F, impressively endured up to 100,000,000 (one hundred million) cycles. In contrast, competitors' offerings failed after just 100,000 cycles, showcasing a

1993-2017 Ford F-150 XLT 1982

dress to look good

Optimized Performance: Swirl polished under head areas and fully machined combustion faces improve airflow and combustion efficiency

2009-2014 GMC Sierra 2500 HD SLT 2003-2007

933in Stroker OEM Crank

Brembo 97-01 Integra Type-R Front GT BBK 4 Piston Cast 2pc 328x28 2pc Rotor Drilled-Silver

BFGoodrich Advantage Control 235/50R18 97V

Sierra 2500 HD 2024-2001

and increase wheel travel

BMC 07-09 Chevrolet Astra III 1

BBS CI-R 19x9 5x120 ET44 Satin Black Rim Protector Wheel -82mm PFS/Clip Required

Brembo 19+ 330i Rear GTR BBK 4 Piston Billet 380x28 2pc Rotor Drilled-Nickel