head stud ?

[doubleclutch22]

Are head studds a have to have at 400-425 hp my engine has mls HG and if they are can i change them out while head is still on the car 1 at a time when i change my cams?
:sadwavey:

[Teambadrun]

you shouldnt need headstuds man

you mean 400-425HP at the engine??
standard ones did me fine for 460HP!!

[cc4usmc]

English dude.

[fliprayzin240sx]

So lemme get this straight...you got a superduperawesome 500whp engine with aftermarket pistons, fresh bottom end, port & polished head but you decide to slap back on the old stock headbolts?!?! Wow...

[Teambadrun]

what turbo are you going to run?
that generally tells you how much power you can make..

if your aiming for 400rwhp id upgrade the headstuds personally... but standard can do you fine

400-425hp at the engine ( 350rwhp) there is nothing wrong with standard headstuds..!!

[4sfed180]

i would replace them anyways even if you were on the stock motor. at one point or another you will be tearing it apart to do cams, head work, HG, or rebuild. you will need it anyways so might as well get it now. reusing stock ones is not a good idea anyways. if you are going to spend money on stock bolts then might as well get some ARP studs. maybe it only makes sense to me :)

[S14DB]

If you have the cams out you can replace them. But NOT 1 at a time. There is a Tq protocol that you have to follow when installing them.

[eklips3]

i would definitely replace the head studs with ARP studs . my reason is because you can really tighten the head down much better then stock bolts thus leading to a more reliable headgasket and you wont have any issues down the road.


I have a question to post on here as well.

How about main studs ???

[S14DB]

How about main studs ???

You need to have your main's bore checked and possibly realigned as the clamping force is different. Same for rod caps.

[eklips3]

i've never heard of having to do that. all i heard was that with ARP mains you torque them down to just a bit lower then what ARP atually says .

[S14DB]

i've never heard of having to do that. all i heard was that with ARP mains you torque them down to just a bit lower then what ARP atually says .

I get mixed answers on whether you "have" to align hone the main. I would still check the bores with a T-gauge and the check bearing crush after switching from bolt to stud.

[doubleclutch22]

ok fliprazn i got this car partly finished the original owner past in a traggic accident i picked up the car from his gf and had the mechanic put the motor together for me i just got new bolts i didnt know about the studds then im new to this i didnt say the motor was 500hp just the turbo was good for that. i have step1 cams but im gonna put 264's in can i replace the head studds without removeing head? i know to zip tie the chain to sprocket and remove tensioner to remove cams while they are out can i change out bolts for studds? or will i have seep issues. no need to insult im trying to learn as i go.:ssex: