• ARP Head Stud Kit for BMW M42 and M44 Engines
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ARP Automotive Racing Products

ARP Head Stud Kit, BMW M42/M44

ARP Head Stud Kit, BMW M42/M44

$219.99 USD
$219.99 USD
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Upgrade your BMW M40, M42, M43 or M44 engine with the ARP Head Stud Kit, designed specifically for E36 and Z chassis. 

ARP provides an elevated driving experience with increased clamping force, improved head gasket sealing, and enhanced overall engine strength. This is made possible by the use of ARP 2000, a high-strength alloy steel material that is utilized in the production of fasteners such as bolts, studs, and nuts. Developed in-house by Automotive Racing Products, ARP 2000 is engineered to endure extreme loads and stresses that are often encountered in high-performance engines.

Installation Instructions: 

1. To ensure proper thread engagement and accurate torque readings, clean ALL threads in the block. Chase if necessary with ARP Thread Chaser.
2. Clean and inspect all hardware prior to installation. Look for obvious defects or shipping damages, plus proper fit, length and dimension.
3. If the cylinder head studs protrude into a water jacket, lubricate the block threads of the studs with ARP THREAD SEALER.
4. Screw studs into the block “HAND TIGHT ONLY”.
5. Install the cylinder head(s) and check for binding or misalignment.
6. Lubricate the stud threads, nuts and washers with ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT.
Then install the washers and the nuts onto the studs and tighten them hand tight.
ARP recommends using the ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT that is provided with each kit as opposed to motor oil. This is due to higher friction on the studs as well as inconsistencies in the clamping force of the fasteners when motor oil or other low quality lubricants are used.

PRELOAD (TORQUE) RECOMMENDATIONS

7. Following the manufacturers recommended torque sequence tighten the nuts steps 1-3

Step 1: Tighten to 25 ft-lbs.
Step 2: Tighten to 50 ft-lbs.
Step 3: Tighten to 75 ft-lbs.

with ARP Ultra-Torque fastener assembly lubricant

Bolt Torque Sequence

7 3 1 5
 9
10 6 2 4 8

ARP-HSK-M42

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