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LS SERIES ARP FASTENERS

Head Studs
ARP uses premium grade 8740 alloy that is heat treated to 200,000 p.s.i. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best. Following heat treat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. ARP studs are thread rolled after heat treat which gives them about 1000% better fatigue strength than studs that are threaded prior to heat treat (a very common industry practice). It costs more to do it this way because its tough on tooling but the results are well worth the extra effort.

Main Studs
ARP main studs eliminate main cap walk and fretting as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Manufactured from 8740 chromoly steel, heat-treated in house to 200,000 p.s.i. tensile strength and precision J-form threads rolled after heat treat to create a fastener that has threads 1000% stronger than OEM produced studs. A must for high horsepower, high rpm engine applications.

Part # Description # ARP P/N Buy Now Status
AR8650 HEAD STUD KIT - ARP (Gen III / LS Series 2004-later) 234-4317 In-Stock
AR8651 HEAD STUD KIT - ARP (Gen III / LS Series 2003-earlier) 234-4316 In-Stock
LS SERIES DARTON SLEEVES
The Darton Dry Sleeve Kit is available for many series of 4, 6, and 8 cylinder import and domestic engines and provides for maximum bore sizes and boost potential.
  • Cast iron performance in an aluminum block
  • Improved block integral strength
  • Improved cooling
  • Kits can be installed by your local machine shop
  • Full installation manual available on website
  • Increased horsepower output potential
  • High boost and horsepower potential
  • Superior oil and compression control
  • Superior cylinder sealing and ring wear
  • Street or strip application
  • Bulletproof Darton ductile iron,
  • 130,000-psi tensile strength
  • Part # Description # Darton P/N Bore Size Semi Bore O.D. Wall Thk Length Flange Thk Flange Dia Buy Now Status
    BC8071 BLOCK SLEEVES - Darton M.I.D. (Chevy LS1/LS6) 600-140L 4.170" - 4.200" 4.165" 4.700" 0.267" 5.800" 0.400" 5.140" In-Stock
    BC8072 BLOCK SLEEVES - Darton M.I.D. (Chevy LS2) 600-160 4.125" - 4.165" 4.100" 4.700" 0.300" 5.675" 0.400" 5.140" In-Stock
    BC8073 BLOCK SLEEVES - Darton M.I.D. (Chevy LS2/LS7) 600-170 4.170" - 4.200" 4.165" 4.700" 0.267" 5.675" 0.400" 5.140" In-Stock
    BC8074 BLOCK SLEEVES - Darton M.I.D. (Chevy LS2/LS7) 600-180 4.125" - 4.200" 4.100" 4.700" 0.300" 5.800" 0.400" 5.140" In-Stock
    619.749.9018 ph
    619.749.9128 fx
    Some products listed are not legal for sale or use on emission controlled motor vehicles, RPM ranges vary on application.Warranty Information Copyright © Brian Crower Inc. All rights reserved..
    WARNING: This product can expose you to chemicals, including Chromium (hexavalent compounds), lead and lead compounds, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov