| 摘要 |
The present invention relates generally to fastening systems, and more specifically, to high tensile or high strength studs. The studs are adapted to be utilized in original manufacture or in the repair or retrofit of internal combustion engines. The improved stud technology can be utilized in the fabrication of new engine builds to improve reliability, extend product life, and the like. Likewise, the stud technology can be used to repair and/or upgrade a failed, compromised, or questionable cylinder head to engine block fastening system. Additionally, a repair or retrofit a kit can be assembled with the improved studs at its foundation. Optionally, any combination of additional items or components useful in the cylinder head to engine block fastener modification can be added to such a kit. |
| 主权项 |
1. A stud having an overall length of about 6.13 inches, constructed from a single piece of metallic material, adapted for fastening a cylinder head to a General Motors Northstar engine block, comprising:
a cylindrical rod having a first end having a first diameter, a second end having a second diameter, such that said second diameter is larger than said first diameter; and a midsection, having a midsection diameter of about 0.43 inches, connecting said first and second ends; each of said first end, second end, and midsection possessing a length, wherein said first end length is about 1.50 inches, and said second end length is about 2.0 inches, and said first end having a first threaded feature disposed about at least a portion of its said length such that said first end engages a cylinder head nut and provides adequate thread travel to enable fastening of said cylinder head to said engine block, and said second end having a second threaded feature disposed about the entirety of said length of said second end, such that said second threaded feature can be fully inserted into said engine block having a tapped hole with corresponding mating thread features.
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