FORD 4.0L XR6 INLINE6 M12 HEAD STUD KIT
Applications
Ford - 4, 5 & 6 Cylinder 4.0L
Ford - 4, 5 & 6 Cylinder Inline 6 Cylinder
Installation Instructions
Automotive Racing Products Tel: (805) 339-2200
1863 Eastman Avenue
Fax: (805) 650-0742
Ventura, Ca 93003
www.arp-bolts.com
INSTALLATION METHOD FOR HEAD STUD KITS
Part Number 252-4302 Application: Ford 4.0L (XR6) inline 6-cyl M12
1. Always verify the part number for your application with the part number on the side of box and the part number
on the instruction sheet. This will help ensure you have the correct installation procedure for your specific
application before installing any components.
2. Clean and inspect all hardware prior to installation. Look for obvious defects or shipping damages, plus proper fit, length
and dimension.
3. To ensure proper thread engagement and accurate torque readings, clean ALL threads in the block. Chase if necessary
with ARP Thread Chaser, part number 912-0007 (M12 X 1.5).
4. If the cylinder head studs protrude into a water jacket, lubricate the block threads of the studs with ARP THREAD
SEALER.
5. Screw studs into the block “HAND TIGHT ONLY”. NOTE: LOCTITE MAY BE USED IF A PERMANENT MOUNTING OF
THE STUDS IS PREFERRED.
6. Install the cylinder head(s) and check for binding or misalignment.
7. Lubricate the stud threads, nuts and both sides of the 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
8. Following the manufacturers recommended torque sequence tighten the nuts in three equal steps to 100 ft lbs with
ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT.
Note: ARP Ultra-Torque Fastener Assembly Lubricant has been specifically designed to reduce tension preload scatter and
eliminate the need to cycle high performance engine fasteners before final installation. ARP Ultra-Torque far surpasses all
requirements offered by previous ARP lubricants in terms of fastener preload repeatability and performance lubricating properties.
For more information on ARP Ultra-Torque visit our website at www.arp-bolts.com or call 1 800-826-3045.
⚠ This is an automatically generated translation and unit conversion. Always refer to the original ARP instruction sheet for exact specifications. Errors may occur. 
