Pro Head Studs
The ARP Cylinder Head Stud Set is a must for engines with increased cylinder pressure from high compression, nitrous oxide, turbocharged and supercharged applications. Made from 8740 Chromoly Steel, these studs test out at over 190,000 psi Tensile Strength. Stock replacement Cylinder Head Bolts are available too! On stock engines, LC Engineering always recommends replacing the old stretched head bolts with new ones to ensure the correct head torque.
Specifications: 11mm x 1.25 thread pitch.
NOTE: Sold as a set of (10).
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- 1995.5-2004 2RZ 2.4L Engines
- 1995.5-2004 3RZ 2.7L Engines
- 2005-2023 2TR 2.7L Engines
To open a printable PDF version of this instruction CLICK HERE
Kit Includes:
8012229 M11x1.25 To 7/16x20 Stud - Long
8012187 M11x1.25 To 7/16x20 Stud - Short
8012178 7/16x20 12 Point Nut
8012176 7/16 ID x 13/16 OD Washers
8017073 ARP Moly Lube
Installation:
- Chase all thread holes before installing. Use 11mm x 1.25 tap to clean threads in the block. Make sure each stud threads into block all the way. Use Moly lube on threads.
- Be sure to check thread pitch to make sure correct end goes into block (Allen head faces out).
- Install head studs in block with 3/16 Allen wrench Snug tight. Do not torque.
- 2 studs in this kit are shorter. These studs will go under the camshaft drive gears in the head. (Not to be mistaken for the timing chain gear) When installing these shorter studs do not thread in all the way. Leave these 2 studs sticking up far enough to be even with the top of the nut when torqued to specs.
- Install head over studs. Install washers and nuts on studs, torque nuts to 75-80ft lbs using ARP Moly or Ultra-Torque lube or equivalent. Be sure to use factory torque sequence.
- After installation and torquing the head install camshafts and verify cam gear stud clearance
21 Reviews Hide Reviews Show Reviews
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Top of the line customer service, parts, packaging and delivery time. I am truly pleased I came across your business online, and started ordering from you all. Instead of going out and buying a new $40k truck, why not put $40k into a 1996 🤷â€â™‚ï¸ðŸ¤£ not there yet, but give me time.
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Fast Shipping
Have not installed yet, but have used ARP goods several times before - should be solid.
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Thanks
Great customer service
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Perfect
Thanks
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Quarter life crisis
ARP head studs I think they speak for themselves
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Good Job!
