arp rod bolt ? on ls1
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
I did some calculations...
when the piston cycles across TDC, the acceleration seen by the piston due to crank rotation is:
@6000 rpm: -2700 g's
@7000 rpm: -3600 g's
the rod angle is pretty much vertical at this point, so those are the g's seen by the rod (and rod bolts) just from crank rotation.
when the piston cycles across TDC, the acceleration seen by the piston due to crank rotation is:
@6000 rpm: -2700 g's
@7000 rpm: -3600 g's
the rod angle is pretty much vertical at this point, so those are the g's seen by the rod (and rod bolts) just from crank rotation.
Teching In
Joined: Jul 2012
Posts: 2
Likes: 0
Stock LS1 conneting rods Not true. You simply hone the rod big end .002" larger to correct the geometry, similar to as if you were honing a cylinder for an oversized piston. You then open up a catalog for your favorite bearing manufacturer, and find the appropriate bearing part number for a stock rod honed .002" larger. I'm pretty sure for a Clevite bearing, you look for part number CH-1776-P.
If you have stock powered metal connecting rods that come in all LS engines except in the LS7 and LS9, they can not be resized due to the fact they are broken capped connecting rods. The connecting rod end and the connecting rod cap match up perfect to one another, Do not resize powered metal connecting rods. Any questions regarding LS I'm your man.
You da man! 
TECH Apprentice
Joined: Dec 2011
Posts: 323
Likes: 0
From: ny
anytime you run arp rod bolts you should have the rods checked for out of round its like 150 bucks to have it done and your motor wont fall apart... i have powdered rods in my v6 and had them done to GM spec.... after i added the arps bolts. the gm tech manual said nothing about not being able to do it because of the rods being powdered. that was 25k ago and 7k rev limiter (i know cause i make sure every time im in the car 
)
) If you have stock powered metal connecting rods that come in all LS engines except in the LS7 and LS9, they can not be resized due to the fact they are broken capped connecting rods. The connecting rod end and the connecting rod cap match up perfect to one another, Do not resize powered metal connecting rods. Any questions regarding LS I'm your man.
I think you should do more research before bumping old threads and claiming to be some sort of LS guru.
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Verdad Gallardo They won't be, especially with the 8740 bolts.
