We spend thousands of hours working with individuals, teams and companies to ensure that our products provide superior performance and reliability. Whether were working with a Pro Stock or Sprint Cup team, or putting thousands of grueling miles on one of our pro touring or street/strip components, we test our products in the same places you do.Thats why we know that every Comp Cams product will perform to the highest of standards. 050 inch Lift: 249 Exhaust Valve Lift: 0.558 Grind Number: 291THR9 Intake Duration at. 050 Inch Lift: 235 Intake Valve Lift: 0.573 Lifter Type: Hydraulic Roller Lifters Included: No Lobe Separation: 109 Valve Springs Required: Yes. WARNING : This product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer. The item "Comp Cams 54-602-11 Big Mutha Thumpr 235/249 Hyd Roller Cam For GM LS engine NEW" is in sale since Wednesday, April 15, 2020. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Camshafts, Lifters & Parts". The seller is "wundercarparts" and is located in United States. This item can be shipped to United States, Canada, United Kingdom, Australia, Mexico, Germany, Japan, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Austria, Bahamas, Israel, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.