hey guys for those wanting to get main studs from arp, do not get the kit for the vauxhaul like some may have


the part numbers after speaking with them directly are



AM6900-1LUGB - Stud itself
300-8344 12 point nut
200-8590 washer


i found out the hard way

do not order ARP-209-5401 as they will not work, they are too short, and only get 10, when we need 20

just a heads up too all those builders out there



if u just want the gm part number it is 11519783

 

good **** man thanks

 

Nice! +rep for some good info

 

it took me like an hour to get it straight, with them lol

 

bump from the dead, might wanna consider stickying this as its the proper ordering information for main studs, or atleast it was last year

 

damn that sucks............... i have the wrong ones.............. this should be a stick or something

 

Anyone buy these to verify you actually get 20 with the above kit #?

Or is the above part number for 1 stud and you need 20?

Also, where did you happen to find this information? Nothing seems to be listed about it from what I can find.

 

The above part number (209-5401) listed only come 10 per box. They are too short and too small to be used for Main Studs. They will NOT work for the Ecotec engines (2.0, 2.2 and 2.4L)

We are currently working with ARP in getting some Main Studs for the Ecotecs out to the market soon. We should have some ARP Main Studs within the next few weeks. I'll post up more information about the Main Studs in our Forums located at https://www.cobaltss.net/forums/allecotec-161/ soon.

Thanks

 

i say to not order that kit

i have the part numbers for each one per, its just one way of doing it, and getting it done with main studs, unfortunately they do not offer a main stud kit for ecotecs

i sat with a caliper, and with stock bolts and block, and me and arp sat on the phone and went ape ****, getting measurements, took almost an hour, i have used these, and worked great

 

so did anyone else try these out or are we all too much of pussies

 

I have ARP main studs now but I don't have a part number....0but they had 2 be modded 2 clear the oil pan

 

haven't done my build yet, but soon

 

well ive done put em in 2 blocks and everytime they work,


also

so people know, u can machine your outer holes, to use the vauxhaul kit as the toher set, but machine work to the block is needed tp use them

 

here are my arp main studs mod'd 2 fit....had 2 be ground down 2 fit oil pan...but all is good now

 

pn#'s ? kind of curious

 

i'll have 2 get the #'s from the machine shop

 

if anyone is interested in knowing, the arp mainstud kit they list for the ecotec that comes with 10 studs is for an early european ecotec with cast iron block. this is actualy the same engine family as the 1.8/2.0l 84-94 sunbird. also iirc this is the same family as the currect aveo 1.6l.

 

thanks sharkey, im using that kit as my other set on the outter edge of the block vs my main stds, i dont the actual name, but i had the holes drilled and tapped for them i guess my bottom end will be secure

 

where can i find the correct ones that i need to buy?

 

look at my 1st post, those would replicate an exact copy, no official kit has been made