L 19 rod bolt torque spec?
 

What is the torque spec for a L19 rod bolt? h beam rod 7/16 with arp lube
in a bbc motor.

I think it's 72 ft-lbs but dont qoute me.

Post updated see below.

Zip.

rod bolts
 

I tried to look it up on thier web site and gave up after 15-20 minutes,not user freindly at all.

Thanks for the info.!!! chart would be great also.

Just looked at Eagle's web site and they list both set's of l 19 bolt's at 79flb

Re: rod bolts
 

You're right it's not 72lbs. Here's the charts for Eagle and ARP, if you have Eagle bolts they are different than ARP. Below is the charts. If you have ARP bolts you'll need to know the pt #'s

Zip.

What Do I Torque the Bolts To?
The first step is to identify which bolts you have. Eagle rods are offered with a variety of different bolts. Each of which has a different torque requirement. Proper bolt torque is paramount to rod strength and life. Eagle does not use "off the shelf" ARP bolts. Eagle has ARP custom make bolts to our specifications. DO NOT use torque specs for off-the-shelf ARP bolts. Here is a diagram of some important bolt identifying features.

The following chart shows the head of the bolt, the dimensions, and the proper torque spec. Be careful! the heads of some bolts look similar and some even have the same markings. DO NOT identify the bolt by the head alone. Verify dimensions also! If the head of your bolts do not match one of the pictures below - you do not have Eagle rods! Please consult the manufacturer of your rods for proper torque specs. Their torque spec is most likely different than ours! Always use ARP moly lube on the threads and under the head of the bolt when torquing!
material socket
size under
head
length thread
size torque
8740 7/16" 1.500" 3/8" 40 ftlbs

material socket
size under
head
length thread
size torque
8740 7/16" 1.600" 7/16" 63 ftlbs

material socket
size under
head
length thread
size torque
8740 7/16" 1.750" 7/16" 63 ftlbs

material socket
size under
head
length thread
size torque
8740 7/16" 1.800" 7/16" 63 ftlbs

material socket
size under
head
length thread
size torque
2000 3/8" 1.500" 5/16" 28 ftlbs

material socket
size under
head
length thread
size torque
2000 7/16" 1.500" 3/8" 43 ftlbs

material socket
size under
head
length thread
size torque
2000 7/16" 1.600" 7/16" 75 ftlbs

material socket
size under
head
length thread
size torque
2000 7/16" 1.800" 7/16" 75 ftlbs

material socket
size under
head
length thread
size torque
L-19 1/2" 1.600" 7/16" 79 ftlbs

material socket
size under
head
length thread
size torque
L-19 1/2" 1.750" 7/16" 79 ftlbs

material socket
size under
head
length thread
size torque
CA 625+ 3/8" 1.500" 5/16" 32 ftlbs


ARP torque specs


CHEVY 131-6001 .0062 40
132-6001 .0062 40
132-6002 .0057 25
133-6001 .0064 50
133-6002 .0068 40
134-6001 .0062 40
134-6002 .0061 50
134-6003 .0063 50
134-6004 .0080 75
134-6005 .0063 50
134-6006 .0055 45
134-6027 .0064 50
134-6401 .0062 40
134-6402 .0066 50
134-6403 .0063 50
135-6001 .0080 75
135-6002 .0063 50
135-6401 .0080 75
135-6402 .0064 50
234-6301 .0064 40
234-6401 .0070 40
234-6402 .0055 45
234-6403 .0065 50
235-6401 .0075 60
235-6402 .0070 45
235-6403 .0075 60

rod bolts
 

Thanks for the chart.!!The rods are ohio crank h beams and i had them upgrade to the L 19 bolts,broke a gm 7/16 bolt and it cost me 10 grand to put this new motor together ,100 dollar upgrade seemed cheap.!!!!!!!


Thanks again. :D

Sorry for the wrong qoute.

I upgraded my Eagle H beams to L-19's over the winter and I was going by memory and my memory doesnt serve me like it used too.
Figured if I chimed in somebody would correct me, I'm always messing up :x

Hey Zip, thanks>Cp

That's O'K Charlie, i've got a set of Lunati promod rods with ARP L19's in my 434" and the torque specs from Lunati said torque to 72 lbs. and ARP says 75 lbs, go figure.

Zip.

L-19 rod
 

Torque varies with friction and lubricant.


Stretch doesn't. .0063" stretch is the same every time.


I have had ARP L-19 1/2" bolts on GRP rods vary 78-102 # to get .0063"-.0068".

jme

I've got (3) 1/2 pints of ARP lubericant in my shop, I think mark is correct, on the stretch, i've never checked with the stretch but i think torque varies from alum. too steel rods also, I do occasionally check stretch, i have (2) .250 ball adapters that slide over the anvils of my micrometers

Zip.