Torque Specs For ARP Hardware

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PART NUMBER
(STRETCH INCHES)		 FASTENER
TENSILE
STRENGTH		 TORQUE
WITH
OIL 30 wt		 TORQUE
WITH
ARP LUBE

Rod Bolts
BEB-08 220,000 PSI 65 ft lbs 45 ft lbs
BEB-09 220,000 PSI 65 ft lbs 45 ft lbs
BEB-1
(0.0065 - 0.007")		 190,000 PSI 55 ft lbs 38 ft lbs
BEB-12 190,000 PSI 60 ft lbs 40 ft lbs
BEB-14 220,000 PSI 65 ft lbs 45 ft lbs
BEB-15 220,000 PSI 65 ft lbs 45 ft lbs
BEB-16
(0.0067- 0.0071")		 190,000 PSI 48 ft lbs 30 ft lbs
BEB-17
(0.005")		 190,000 PSI 31 ft lbs 25 ft lbs
BEB-18
(0.005")		 190,000 PSI 44 ft lbs 31 ft lbs
BEB-19 220,000 PSI 65 ft lbs 45 ft lbs
BEB-20
(0.006")		 220,000 PSI 65 ft lbs 50 ft lbs
BEB-22
(0.0053 – 0.0057")		 190,000 PSI Lube only 22 ft lbs
BEB-24
(0.0052 - 0.0056")		 190,000 PSI Lube only 24 ft lbs
BEB-289
(0.006 - 0.0067")		 190,000 PSI 48 ft lbs 30 ft lbs
BEB-60
(0.0063" - 0.0067")		 190,000 PSI 55 ft lbs 38 ft lbs
BEB-6001
(0.0065 - 0.007")		 190,000 PSI 60 ft lbs 40 ft lbs
BEB-6003
(0.006 - 0.0067")		 190,000 PSI 60 ft lbs 40 ft lbs
BEB-RV60
(0.0055 - 0.0059")		 190,000 PSI 55 ft lbs 38 ft lbs

Fly Wheel Bolts
FB1150 170,000 PSI 70 ft lbs 52 ft lbs
FB1250 190,000 PSI 95 ft lbs 75 ft lbs
FB900 190,000 PSI 60 ft lbs 40 ft lbs
FB940 190,000 PSI 60 ft lbs 40 ft lbs
FBB716 170,000 PSI 90 ft lbs 65 ft lbs
FBT716 170,000 PSI 90 ft lbs 65 ft lbs
FBV8716 170,000 PSI 90 ft lbs 65 ft lbs
FBV985 - FBV944 190,000 PSI 85 ft lbs 63 ft lbs

Head Stud Kits
HSA11 Ê
rocker studs 5/16"		 190,000 PSI 60 ft lbs
30 ft lbs 		40 ft lbs
20 ft lbs
HSA11-B Ë
rocker studs 5/16"		 190,000 PSI 60 ft lbs
30 ft lbs 		40 ft lbs
20 ft lbs
HSA9
rocker studs 5/16"		 190,000 PSI 60 ft lbs
30 ft lbs 		40 ft lbs
20 ft lbs
HSAH3 190,000 PSI 80 ft lbs 63 ft lbs
HSB42
rocker studs 5/16"		 190,000 PSI 60 ft lbs
30 ft lbs 		40 ft lbs
20 ft lbs
HSBM70 190,000 PSI 135 ft lbs 95 ft lbs
HSC4201 190,000 PSI 85 ft lbs 70 ft lbs
HSC4301 190,000 PSI 85 ft lbs 70 ft lbs
HSC4601 190,000 PSI 85 ft lbs 70 ft lbs
HCS48 190,000 PSI 85 ft lbs 70 ft lbs
HSCB4601 190,000 PSI 85 ft lbs 70 ft lbs
HSCSW53 190,000 PSI 135 ft lbs 95 ft lbs
HSF38 190,000 PSI 130 ft lbs 90 ft lbs
HSFX48 190,000 PSI 85 ft lbs 70 ft lbs
HSGT6w 190,000 PSI 95 ft lbs 75 ft lbs
HSL68 x 190,000 PSI 85 ft lbs 70 ft lbs
HSMGC2 190,000 PSI 80 ft lbs 63 ft lbs
HSP4201 190,000 PSI 135 ft lbs 95 ft lbs
HSRV45 190,000 PSI 85 ft lbs 70 ft lbs
HST425-10 190,000 PSI 65 ft lbs 45 ft lbs
HST425-11 190,000 PSI 65 ft lbs 45 ft lbs

Main Stud Kits
MCS-1 190,000 PSI 85 ft lbs 70 ft lbs
MS3B54 190,000 PSI 145 ft lbs 95 ft lbs
MS5B54 190,000 PSI 145 ft lbs 95 ft lbs
MSA33 190,000 PSI 95 ft lbs 75 ft lbs
MSA44 190,000 PSI 95 ft lbs 75 ft lbs
MSA54 190,000 PSI 95 ft lbs 75 ft lbs
MSC5401 190,000 PSI 85 ft lbs 70 ft lbs
MSC5601 190,000 PSI 85 ft lbs 70 ft lbs
MSF375 190,000 PSI 85 ft lbs 70 ft lbs
MSF40 190,000 PSI 85 ft lbs 70 ft lbs
MSF54 190,000 PSI 135 ft lbs 95 ft lbs
MSF64 190,000 PSI 135 ft lbs 95 ft lbs
MSRV54 190,000 PSI 85 ft lbs 70 ft lbs
MSSB560 190,000 PSI 85 ft lbs 70 ft lbs

Stainless Manifold/Thermostat Studs/Bolts
THS-1 (SS studs) 170,000 PSI 25 ft lbs 20 ft lbs
THB-2 (SS bolts) 170,000 PSI 28 ft lbs 22 ft lbs
AMS-1 (stainless) 170,000 PSI 30 ft lbs 20 ft lbs

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The following notes are important!

  • ALWAYS wash the fasteners with cleaning solvent prior to installation. They come coated with a "protective" coating, this is NOT a lubricant.

  • Choose correct torque from the chart.

  • Note the difference in torque settings depending on the thread lubricant used.

  • The method to follow for applying lubricant:

  • Coat the fastener with lubricant as evenly as possible (especially important with the L99 lube).

  • Pull up the fastener so that it is 'snug'.
    Do this three times, on the third time torque in the recommended order to the torque as shown in he chart opposite.

  • The above method no doubt seems strange, but does ensure no metal to metal contact that increases friction between the threads.

  • The torque figures shown will give a preload equal to 75% of the yield strength of the fastener.

  • Use a generous chamfer on all stud holes.

  • Screw studs into the block using 4 ft lbs only. (Basically hand tight).

  • If you feel you have to use a thread locking compound for studs (not bolts or nuts) then be sure to do the final torque before the compound sets up.

  • We do not recommend the use of lock tabs which are made from  a material which is too soft, and as it squeezes out, the fastener preload is lost.

  • Due to leverage differences a fine thread will produce a greater preload for a given torque than will a coarse thread of the same diameter.

  • Tap all female threads before installing bolts or studs. (Best not to use a new tap)

  • ARP lube, part number L99 is recommended over 30 wt oil if possible, as its superior lubricating properties produce the correct clamping preload for less torque.

  • For all connecting rods check that the chamfer required to clear the bolt under head radius is adequate - this is VERY important.

 Notes for specific kits:

Ê   The front stud on the 11 stud head should only be torqued to 45 / 30 ft lbs as the block is open at the water pump, and will start to distort if more tension is put on the stud.

Ë   Torque for front 5/16"  bolt is 
33 / 22 ft lbs (oil/ARP lube)

w  The GT6 head stud kit can  be used in a TR6 application if the total head thickness, including gasket is 3.45"  or less.
(Check that the washer is not more than 0.060" thick)

x  One of the head washers requires a flat ground on it to clear the cam bearing cap for one stud only.
For additional info, try these links:

'A' & 'B' Series Head Stud info

Triumph Head Stud info

 

 

 

 

 

ARP_Red_Logo.gif (6021 bytes) ARP is the worlds largest producer of quality fastener hardware made exclusively for the automotive industry. APT offers many additional kits made up for mostly British and European applications. APT distributes these around the world. Distribution in the UK and Europe is through Kent Cams and their distributors.

All ARP products are available in Europe through Kent Cams and their distributors