LS3 connecting rods in LS1 build - worthwhile mod?
#1
On The Tree
Thread Starter
iTrader: (20)
Join Date: Feb 2006
Location: Riverside, CA (So Cal)
Posts: 101
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Hey guys,
I've tried searching and I haven't found a definitive answer - what are everyone's opinions on putting an LS3 rod in an LS1 build?
I heard they're lighter and stronger than the stock LS1 connecting rods, and considering I'm getting forged pistons and the rotating assembly balanced, why not?
FWIW, this is going on a moderate NA application (nothing wild) that will be on the road course for about 20% of the time. I'll be pairing up the connecting rods with Katech rod bolts regardless.
Thoughts?
I've tried searching and I haven't found a definitive answer - what are everyone's opinions on putting an LS3 rod in an LS1 build?
I heard they're lighter and stronger than the stock LS1 connecting rods, and considering I'm getting forged pistons and the rotating assembly balanced, why not?
FWIW, this is going on a moderate NA application (nothing wild) that will be on the road course for about 20% of the time. I'll be pairing up the connecting rods with Katech rod bolts regardless.
Thoughts?
#2
Moderator
iTrader: (20)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Hey guys,
I've tried searching and I haven't found a definitive answer - what are everyone's opinions on putting an LS3 rod in an LS1 build?
I heard they're lighter and stronger than the stock LS1 connecting rods, and considering I'm getting forged pistons and the rotating assembly balanced, why not?
FWIW, this is going on a moderate NA application (nothing wild) that will be on the road course for about 20% of the time. I'll be pairing up the connecting rods with Katech rod bolts regardless.
Thoughts?
I've tried searching and I haven't found a definitive answer - what are everyone's opinions on putting an LS3 rod in an LS1 build?
I heard they're lighter and stronger than the stock LS1 connecting rods, and considering I'm getting forged pistons and the rotating assembly balanced, why not?
FWIW, this is going on a moderate NA application (nothing wild) that will be on the road course for about 20% of the time. I'll be pairing up the connecting rods with Katech rod bolts regardless.
Thoughts?
Since you're having the engine built, I wouldn't do the Katech rod bolts. You could use ARP 8740 or 2000 rod bolts and if the rods need to be resized, you could still have that done and pay about the same or less than what those Katech's cost.
#3
On The Tree
Thread Starter
iTrader: (20)
Join Date: Feb 2006
Location: Riverside, CA (So Cal)
Posts: 101
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I'd say they're definitely an upgrade. They are bushed for a floating pin so make sure the pistons have provisions for some way of securing those pins (ie spirolocks, c-clips, etc).
Since you're having the engine built, I wouldn't do the Katech rod bolts. You could use ARP 8740 or 2000 rod bolts and if the rods need to be resized, you could still have that done and pay about the same or less than what those Katech's cost.
Since you're having the engine built, I wouldn't do the Katech rod bolts. You could use ARP 8740 or 2000 rod bolts and if the rods need to be resized, you could still have that done and pay about the same or less than what those Katech's cost.
The Katechs came with the engine I got, otherwise I would have gotten ARP's
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
Trending Topics
#10
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
My hp goals for my ls1 is around 600-650. Can the stock rods hold up to that?
#12
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
what bearings etc. would I need to do the ls3 rods in ls1?
#13
TECH Senior Member
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
They use the same bearings.