Mikko

Supercharged LS3 with reasonable goals, Paxton Novi 2200 charger but not aiming more than 650whp.

Are ARP man studs must do mod? Some say that are and some that not?

And are there anythong special with assemblieng those, or just oilpan of, bolts of, studs in. Read something about line-honing?

Arp connection rod bolts probably are wise insurance even in LS3 anyhow?

Tainted

iTrader: (9)

must? not really
a very very good idea and cheap insurance? for sure

Gunslinger09

I don't think studs are a must untill you start doing an all out race motor.

WKMCD

iTrader: (2)

From direct personal experience...when my 15k mile 403 build came down there was evidence of the caps moving. That build did not have ARP hardware on the bearing caps. No track time with that engine. There are pics in the build thread. Another option on the rod bolts are Katech with a torqued rather than measuring stretch with the stockers or ARP.

When the 427 was built, ARP studs and bolts were used everywhere.

lemons12

iTrader: (71)

With your build, I say definitely.

6D9 Matt

Agreed

Mikko

I gues that i take that insurance, bought my supercharger kit today...

Installing main studs, guide for idiots?

Is there anything else than bolts out -> studs in.

Oh, and i gues that stud kit http://www.summitracing.com/parts/arp-234-5608 is correct one.

And connection rod bolts:
http://www.summitracing.com/parts/arp-134-6006
or
http://www.summitracing.com/parts/arp-234-6301

RezinTexas

sounds like a solid build, have fun!

Be sure to carefully measure your main clearances with the studs fully torqued down. I've heard some say that the studs distort the main bores slightly. If the measurements check out ok you'll be fine.

Beatdown Z

iTrader: (18)

I would leave it alone if you're not tearing the whole bottom end apart and measuring bearing clearances.

There are weaker links in the motor that you'll break before the main bolts.

BigAce

at that power level the stockers should be just fine and ARP not necessary. any more than that and I would use them.

keep in mind that gm uses them on that 454lsx crate that pushes around 750 hp.
If they were inadequate to handle that kind of load, then theres no way GMPP would be using them. So i am sure it would be okay. the design from the factory is a very strong one to begin with.

Ive asked this same question before. check out this thread, lots of info:
https://ls1tech.com/forums/generatio...l92-418-a.html

I went with them on my build because we had the whole motor apart already and I wanted the most bulletproof setup I could afford that will handle whatever I may throw at it in the future. Plans are to boost the 418 about 14-16+psi and run a nitrous shot on top of that at times where i want more power. Il be pushing well over 1000 hp at that point on the spray.

So the reason i went with the studs is I wanted to make sure i did everything i could to strengthen the bottom end to keep the main caps securely in place and withstand the sudden abuse from the nitrous hits.

I knew that if i didnt get them I would regret it down the road as i continue to mod the vehicle. I like to know that the bottom end is capable of handling just about anything so you can reliably push a little more HP through your short block

Mikko

Thanks Bigace

So what are those weakest links? connection rod bolts, rods itself.

My friend broken rod bolts on his stock ls376/480 as now has big hole in his block.