spiro27

just go a question have a 01 trans am ws6 ls1 going to do head and cam bought most stuff. does my car have all the same lenght head bolts or the set with 3 different sizes. witch ones does my car have? what the arp part nuber so i can get the right ones thanks for the help. is arp 134-3609 the right set thanks

Darkman

iTrader: (2)

That is the correct set for pre-2003 engines.

NVR_SPDS

iTrader: (39)

You have the 2 different lengths as long as the motor has never been swapped to an 04 and newer block.

Sales2@Texas-speed

iTrader: (5)

134-3609 will do the trick, but as a warning, it is VERY difficult to find any of them right now with a nasty back-order ARP has on them. We've been out for months and ARP cannot even give us a decent ETA on them right now

spiro27

there is a backorder for a while can i use gm perfomance 12498545 head bolts insted. are these the correct kind dor my car and are they torque to yeild. no reusable. do i have to torque angle them with the gauge. or should i just wait for arps. thanks.

Sales2@Texas-speed

iTrader: (5)

Yes, 12498545 will work perfectly. They are torque to yield like you said and not re-useable.

spiro27

i have to use the torqe angle meter on these . its a tight engine bay is there enough romm to torque angle them under the hood? i like the arp because there is no need to put torqe angle gauge on them makes it easyer.

redbird555

iTrader: (14)

you do not need a torque angle gauge follow the heads and cam guide on ls1 how to the torque angles are like 45 and 90 degrees just use a felt tip marker and draw a line on the top of the bolts to keep track on how much you tighten the bolt.

TransWS6Am

iTrader: (41)

find someone with a Snap-On tech angle torque wrench, the thing is awesome! I have one in 3/8 and 1/2.

NHRATA01

iTrader: (10)

If the studs aren't on backorder, I recommend going with them. I tried to save a few bucks and use the ARP bolts (didn't want to do TTY again) but regret it. The studs shorten the time to remove the heads as you won't have to meticulously clean coolant out of the block bolt holes again. Also they won't beat up the block threads with constant torqueing/retorquing.

spiro27

your taking about head studs not head bolts? th thught it wasent posible to put head studs on a ls1 trans am with motor in car. can i put jead studs in the block in car and be able to get cyl heads on the block? i thought it wasent possible to do this because there is little room in f body but if i can i will what is the cost for a arp head stud kit anyway i gess arp would give torqe specs and sequence in package thanks for help.

TransWS6Am

iTrader: (41)

Head studs are the way to go! They are like $300. I have the ARP head studs in my car. I did assemble my engine out of the car on the k-member, and then roll it back under the car though. But I don't see any reason why you couldn't chase the threads with the heads off, put the gasket on, put the heads on, and then install the studs followed by the nuts. Does anyone see a problem with doing it that way?

NHRATA01

iTrader: (10)

You can do studs in the block in-car and fit the heads on. There is enough room.

TransWS6Am

iTrader: (41)

here are some used ARP head bolts https://ls1tech.com/forums/parts-cla...l#post15187020

spiro27

i got 2 sets of 12498545 gm ones. thers 8 long bolts 2 short and 5 10mm. is that right where in the thead do the 2 shorter go thanks

9t8z28

iTrader: (19)

I have a set of these ARP head bolts of you still need em. LMK

Sales2@Texas-speed

iTrader: (5)

They are off back-order now and everyone has them in stock that wants them

9t8z28

iTrader: (19)

Just when I thought I had something worth something, haha

Sales2@Texas-speed

iTrader: (5)

The way ARP has been lately, they could be back-ordered again very soon!