dnm12

iTrader: (13)

(1) What size brass plug fits into the water temp sender hole?

(2) I got a new set of GM head bolts but the AFR head instructions have a lot of instruction and recomend ARP head bolts (as well as washers) what do you all think?


TIA!

brad8266

iTrader: (23)

1. I pretty sure its 1/8th

2. ARP head studs are your best bet. You clean the bolt holes only once, install em and never have to buy new bolts or clean the holes out again.

dnm12

iTrader: (13)

but what about if I get a new block? or want to remove them?

TheBlurLS1

iTrader: (8)

You CAN remove them (and re-use them), but you don't have to.

brad8266

iTrader: (23)

They come right out and thread right into the new block. Studs are a win-win.

dnm12

iTrader: (13)

so for me it would cost about $140 shipped from say Thunder Racing? I already have a set of brand new GM bolts so is it worth it or not??

JRracing

iTrader: (35)

Yes, it's worth it. They are 3 times stronger than stock bolts.

I just put my AFR heads on about an hour ago and I re used my ARP bolts. I did not buy studs as they cost a bit more. But if I had to buy them again, I would use studs. Studs have better clamping force than bolts.

dnm12

iTrader: (13)

113-234-4110 ARP Hex Head Stud Kit; LS1 thru 2003 $236.99
113-234-4316 ARP 12 pt. Head Stud Kit, LS1 thru 2003 $258.99

So which one?

brad8266

iTrader: (23)

the 12pts are a bit nicer, but they work pretty much the same.

dnm12

iTrader: (13)

how any explanation would be great or install tips?

brad8266

iTrader: (23)

You clean the bolt holes really good so they are dry and clean. Then apply moly lubricant to the stud threads and thred them into the bolt holes. The place the gasket and head on, then put the washers on the studs, then place the nuts on and torqe them down in the proper sequence.

slow trap

iTrader: (22)

another plus about the arp head studs/bolts is you torque them to ftlbs instead of the degree method which sucks if the motor is in the car.but as said they are reuseable and are much stronger so it is a good investment.

dnm12

iTrader: (13)

so is it really worth the $250 for the studs?

1stz06

iTrader: (18)

Yes it's worth it. Buy them and be done.

dnm12

iTrader: (13)

so install them to what and how with an allen wrench

also 1/8 brass plug is all i need to order to plug the temp sender unit hole? no other measurements needed?

Thanks a bunch everyone this is what makes this site so great!!!!

brad8266

iTrader: (23)

The studs go in the bolt hole hand tight, then you put the gasket and head on and torque em down to 75Lbs-ft.

dnm12

iTrader: (13)

bolts into bolt hole hand tight put gasket on then heads, then tighten studs with allen wrench fitting to 75 lbs, then put washer/nut on stud and tighten to what?

brad8266

iTrader: (23)

No, studs go in hand tight into the block and nuts tightened to 75 lbs.

click this and go to page 40 http://www.arp-bolts.com/Catalog/Catalog.html

dnm12

iTrader: (13)

thanks for that link what about that section:

To ensure positive sealing of "wet" head studs, a hardening........

slow95z

iTrader: (33)

ARP bolts are always better than stock for starters. Another nice thing about them is that you can reuse them all you want. i went with them and have had no problems at all.