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Wossner Rod Bolt Torque Installation

Installation Instructions for ARP L19 Rod Bolts

Specifications for the supplied rod bolts

 

Bolt

Thread Dia (in)

 

UHL (in)

ARP

L19 3/8 x 1.500"

3/8

UNF

1.500"

ARP

L19 3/8 x 1.750"

3/8

UNF

1.750"

ARP

L19 5/16 x 1.500"

5/16

UNF

1.500"

 

ARP specifies as follows:

ARP

L19 5/16x1.500"

UNF

1.500"

Desired stretch is .0050"-.0055"

A maximum torque value of 40ft/lbs will need to be reached; if your stretch value is reached well before the 40ft pounds then you may need new fasteners.

 

ARP

L19 3/8x1.750"

UNL

1.750"

ARP

L19 3/8x1.500"

UNL

1.500"

Desired stretch is .0052"-.0055” for 1.500” and .0060”-.0065” for 1.750” length bolts.

A maximum torque value of 65ft/lbs will need to be reached; if your stretch value is reached well before the 65ft pounds then you may need new fasteners.

We recommend to only using the supplied ARP Ultra torque fastener assembly lube. This lube reduces friction about 25-30% in comparison to engine oil.

The above mentioned values are valid only if the thread and seat area of the bolt have been lubed properly.

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