ARP 2000 Material, 12pt nuts. LS1 LS6 LQ4 LQ9 LR4 LM7 L59 LM4 L33. 4.8 5.3 5.7 6.0. ARP2000 series is a step up in strength vs the standard ARP Head Studs. Be sure to note which head bolts you need as GM used two different style LS head bolts. Made in the USA. 100% of fastener manufacturing is in-house at ARP. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Engines & Engine Parts\Cylinder Heads”. The seller is “michiganmotorsports” and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South Africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Republic of Croatia, Malaysia, Brazil, Chile, Colombia, Costa Rica, Panama, Trinidad and Tobago, Guatemala, Honduras, Jamaica, Antigua and Barbuda, Aruba, Belize, Dominica, Grenada, Saint Kitts-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, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Vietnam.

• Manufacturer Part Number: 234-4344
• Brand: ARP