Callies Compstar Connecting Rod Bolt,
- Part Number: BLTC145
- Diameter: 7/16
- Under Head Length: 1.450"
- Rod Bolt Material: ARP2000
- Sold Individually
Compstar |
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| Rod | Bolt | Material | Torque | Stretch |
| SBC H-Beam (Std. & SJ) | BLTC145 | ARP 2000 | 75 ft.lbs. | .0040″-.0050″ |
| SBC I-Beam (Std. & SJ) | BLTC145 | ARP 2000 | 85 ft.lbs. | .0040″-.0050″ |
| LS1 H-Beam (Std. & SJ) | BLTC145 | ARP 2000 | 75 ft.lbs. | .0040″-.0050″ |
| LS1 I-Beam (Std. & SJ) | BLTC145 | ARP 2000 | 85 ft.lbs. | .0040″-.0050″ |
| SB Ford 5.400 H-Beam | BLTC145 | ARP 2000 | 75 ft.lbs. | .0050″-.0060″ |
All of Callies Compstar H-beam connecting rods use ARP 2000 bolts designed specifically for the rod they are installed in. Underhead length, thread length, undercut diameter and length, and shank length all play an important role in the dimensional stability of the bearing housing.
We strongly recommend using the correct bolts that we have designed for our rods when doing bolt replacement maintenance. Using the wrong bolt is risking failure due to incorrect clamping load or thread engagement.
Extreme Pressure Lube #3 is the bolt lube that we use and recommend. It is available in 1/4 oz sample packs or 4 oz tubes through Callies. It also may be available at some local industrial supply stores. All torque information is based on testing with various models and styles of torque wrench using EP#3 on the bolts, and oil on the internal threads.
Use of any other type of lube requires using the bolt stretch method for proper installation.
*Photo for illustration purposes only