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MANLEY 11539 1 Exhaust Valve Severe Duty Series (1.600" Head Dia., 5.036" O A Length, 0.3415" Stem) for CHEVROLET Small Block ymm_17 providing characteristic valve operation while ymm_28 providing characteristic valve operation while maintaining standard engine behavior without triggering warning lights Bosch Push In When valves bounce on the seat Manley Severe Duty Valves are designed for high performance and racing applications
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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Frequently Asked Questions for MANLEY 11539-1 Exhaust Valve Severe Duty Series (1.600" Head Dia., 5.036" O/A Length, 0.3415" Stem) for CHEVROLET Small Block ymm_17 providing characteristic valve operation while ymm_28
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