Crower 00543 Features:

Mechanical roller camshaft for carburated GM LS-series V8 applications, Crower part number 00543. 279°/285° advertised duration, 251°/254° duration at .050 in., and .644 in. gross lift with 1.7 ratio rockers. 110° lobe separation angle with recommended valve lash of .018 in. intake and .020 in. exhaust. Performance Level 3 hot-street cam with a 3500 to 7500 rpm power range; requires extensive engine and cylinder head modifications.

Chevy LS1 Mechincal Rolle Mechanical Roller Cam 251/254 Dur. Features:

• Mechanical roller camshaft for carburated LS engines, level 3 hot-street profile, 3-bolt core compatibility, 1997-present fitment
• 279°/285° advertised duration, 251°/254° duration at .050 in., 110° LSA, broad high-rpm performance characteristics
• .644 in. intake and exhaust gross lift with 1.7 ratio rockers, aggressive valve event design for stronger top-end power
• 3,500 to 7,500 rpm operating range, tuned for hot-street and race-oriented builds requiring extensive engine modifications
• Recommended .018 in. intake and .020 in. exhaust valve lash, fits 4.8L, 5.3L, 5.7L, 6.0L LS1 LS2 LS3 LS6 LS7 LS9 LSX

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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