ARP bolts on Eagle rods
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ARP bolts on Eagle rods
Anyone know the torque and stretch specs of the ARP 2000 bolts that come with Eagle rods for the 4G63? I can't find the part number for them so unsure how much to stretch them by to get the correct preload.
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hope this helps for you buddy ...luckily i just did mine a few weeks ago and i still got the paper for the specs....so here goes:
Torque Specs:
BOLT........................................IDENTIFICATION.........TORQUE.........BOLT STRETCH
7/16" ARP 8740..........................7/16" bolt head.............63 ft. lbs.......... .0059"-.0063"
7/16" ARP 2000..........................7/16" bolt head.............75 ft. lbs.......... .0064"-.0068"
7/16" ARP L-19...........................1/2" bolt head...............79 ft. lbs.......... .0073"-.0077"
3/8" ARP 2000............................7/16" bolt head.............43 ft. lbs.......... .0055"-.0059"
5/16" ARP 2000..........................3/8" bolt head...............28 ft. lbs.......... .0048"-.0052"
5/16" ARP Custom Age 625........3/8" bolt head...............32 ft. lbs.......... .0062"-.0066"
**To accurately determine the life of a bolt, it is recommended that a log of the bolts original free-standing (Untorqued) length should be kept and recorded upon sebsequent teardowns for inspection. The free-standing length should be checked against its original length. If there is an increase of .001" or more, or if there is any permanent deformation or galling, the bolt should be replaced.
this was all straight off from the installation instructions paper that came with it
Torque Specs:
BOLT........................................IDENTIFICATION.........TORQUE.........BOLT STRETCH
7/16" ARP 8740..........................7/16" bolt head.............63 ft. lbs.......... .0059"-.0063"
7/16" ARP 2000..........................7/16" bolt head.............75 ft. lbs.......... .0064"-.0068"
7/16" ARP L-19...........................1/2" bolt head...............79 ft. lbs.......... .0073"-.0077"
3/8" ARP 2000............................7/16" bolt head.............43 ft. lbs.......... .0055"-.0059"
5/16" ARP 2000..........................3/8" bolt head...............28 ft. lbs.......... .0048"-.0052"
5/16" ARP Custom Age 625........3/8" bolt head...............32 ft. lbs.......... .0062"-.0066"
**To accurately determine the life of a bolt, it is recommended that a log of the bolts original free-standing (Untorqued) length should be kept and recorded upon sebsequent teardowns for inspection. The free-standing length should be checked against its original length. If there is an increase of .001" or more, or if there is any permanent deformation or galling, the bolt should be replaced.
this was all straight off from the installation instructions paper that came with it
Last edited by EVOclub4; Oct 26, 2007 at 11:55 PM.
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3/8" ARP 2000............................7/16" bolt head.............43 ft. lbs.......... .0055"-.0059"
Thanks! This must be it Going to tighten them down using the stretch method.
Thanks! This must be it Going to tighten them down using the stretch method.
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