Rod bolt torque? Help!
Thread Starter
Teching In
Joined: Aug 2008
Posts: 2
Likes: 0
Rod bolt torque? Help! Trying to torque my rod end cap bolts and the specs say ;
Connecting Rod Bolts - First Design (First Pass) 15 lb ft
Connecting Rod Bolts - First Design (Final Pass) 60 degrees
Connecting Rod Bolts - Second Design (First Pass) 15 lb ft
Connecting Rod Bolts - Second Design (Final Pass) 75 Deg
I have a 99 LS1 out of a trans Am I am trying to determine if I have a fist or second design.
I am assuming I have second design but with something as critical as rod bolts I want to be sure..
Can the stock rod bolts be reused? or are they a one time bolt due to streatch?
Connecting Rod Bolts - First Design (First Pass) 15 lb ft
Connecting Rod Bolts - First Design (Final Pass) 60 degrees
Connecting Rod Bolts - Second Design (First Pass) 15 lb ft
Connecting Rod Bolts - Second Design (Final Pass) 75 Deg
I have a 99 LS1 out of a trans Am I am trying to determine if I have a fist or second design.
I am assuming I have second design but with something as critical as rod bolts I want to be sure..
Can the stock rod bolts be reused? or are they a one time bolt due to streatch?
Last edited by Maurice Lobo; May 15, 2009 at 01:02 AM.
i know tht when i bought a brand new LS1 for my 01 Camaro i came into some differences pertaining to Head bolts with old and new design becaue in like 03 they changed alot on them and the head bolt length's changed you might be in the same boat if the rod bolts cahnged in the same time frame just look it up with GM
As per the latest ALLDATA, the bolts are torqued to 15 ft lbs, then 85*.
Before the latest update, the second design bolts (with sleeve) were turned 75*, and the first design bolts were turned 60*
Russ Kemp
Before the latest update, the second design bolts (with sleeve) were turned 75*, and the first design bolts were turned 60*
Russ Kemp
On The Tree
Joined: Jun 2012
Posts: 122
Likes: 2
The fist design rod bolt has dog bone with one dot on the head of the bolt and no retaining sleeve, the second design rod bolt has dog bone with two dots on the head with retaining sleeve on shank.... 
idk much about first design but i reuse 2nt design all the time 2 and 3 times over.. spinning the engine to 6,400rpm + on stock set up with a little bump in power with a mild cam, just dont over torque/angle them hope this is helpful to you and others peace
idk much about first design but i reuse 2nt design all the time 2 and 3 times over.. spinning the engine to 6,400rpm + on stock set up with a little bump in power with a mild cam, just dont over torque/angle them hope this is helpful to you and others peace Trending Topics
No, they are torque to angle, not torque to yield. Even GM says that you can reuse them.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
