For those who prefer bolts, ARP's got you covered, too. Also, you may choose between conventional hex style or the space-saving 12-point nuts. They're designed to make it as easy as possible to install a pan and seal it properly.
ARP 434-6902 LS Oil Pan Bolt Kit 12pt Polished Stainless LS1 4.8 5.3 5.7 6.0 6.2
ARP 434-6902 Oil Pan Bolt Kit Chevrolet Gen III/IV, LS1 LS2 ARP Stainless, 12pt
LS Oil Pan Dual 1/8NPT Port Adapter Plate Billet Aluminum for Turbo Oil or Gauge
LS0020ERL Earl's GM LS Oil Cooler Block Off Plate with 1/8" NPT Port
LS oil lines relocate block with 2 ports for gauge fitting.
ICT Billet LS Oil Pressure Sensor Relocation Adapter w/ Dual 1/8"npt Outlets