stock headgasket is good for 1500rwhp+

 

I have a BL stock HG drilled for 1/2 ARP head studs. This is a very common pracitce for us that are making decent and GOOD power.

 

Do you guys o-ring the block or heads?

 

nope. only one guys has and thats suprwhp.

 

there are several out there with o ringed blocks, no reciever groove in the head.
I for one usually run that type of set up.

 

Stock head gasket, stock sized L19 headstuds. This has held 45+ psi and almost 1100 whp through a TH400.

 

If the L19's can handle the same or more boost as the 1/2" headstud how come most people still use the 1/2" option??

 

Some were using 1/2" head studs long before the L-19's were available for the 2J, and the machine work on the block and head are already done, so the L-19's are useless in those blocks. You could put an insert in the head and use it. Once the machine work is done, the 1/2" headstuds are far less expensive.

 

The L19s arent that bad, we have a few sets in stock at $565.

http://www.rrevstore.com/catalog/product_info.php?products_id=5253

 

Makes sense. I was planning on using the L19's when I build my motor. That way I wouldn't have to machine the block/head and buy a modified headgasket and save some money too.

 

L19- 1/2 inchers with stock gasket, Calculated 1533 rwhp @ redline.

 

1/2" stock with a stock gasket, you're not going to lift the head with that setup.........no o-rings.

 

I understand that about the wire thickness. I was just curious since we oring the head not the block, which is the opposite of how you do it.

Erin

 

As the head is alum and reasonable soft compared to the block, wouldn't the wire work its way into the head over time and eventually you'd need to face the head again?? And then I believe its very difficlut to servive an O ringed head as its very hard to line up the O ring cutter to cut the O rings deeper back in the same place... Makes a lot more sense to me to run O rings in the block, at least they won't wear, you simply replace the wire evry few times you remove the head...

I also would have thought the steel head gasket wouldn't have been conducive to accepting an O ring.... Still can't believe people are making 1500rwhp on stock gaskets!!

6BOOST

 

Agreed. Just wanted to point out that it is ok to do it either way if you do in fact want to run an oring setup. Personnally I do not think it is worth the trouble on a 2J as there are several easier and more cost effective opptions that work perfectly.

Erin

 

Erin,
Thanks for all of the input. Honestly, I'm more looking for whats going to hold the best across the board. I'm not building a 2J but I am building another style of motor that has not seen cylinder pressures that equal 225-275hp per cylinder. I've talked to guys that run very different types of engines and everyone seems to think that as far as the extreme combos the O-ring holds the most cylinder pressure but with the downside being the copper leaks. The MLS gasket/o ring seems to net the best of both worlds but there is always more than one way to skin a cat. Thanks again guys!
Phil

 

Good thread

I run 1/2'' ARP studs with a WOTM turbo kit, Titan 3.0 and HEADGAMES Ferrea valve job'd head.
I experienced something a little strange the first time WOTM tuned the car on the dyno...the car leaked a little(4 ounces of coolant from the driver's side of the block, from where seemed to be the oil cooler area or maybe the block.) I noticed this after I pulled the car out and by then, most of the evidence had evaporated on the car.

It never leaked again, even after another tune, strange I tell you.:dunno:

I have done at least 30 hard pulls on race gas and 20 dyno pulls with no issues. Conclusion-1/2'' ARP studs are the way to go.

 

I doubt these motors have the same record for lifting heads like LSxs do.....?

 

2J's simply don't have a head lifting problem. I personally ran mine on a totally stock 100k longblock with 38psi and 150 shot for a year. Then I tore it down, only to find that it was perfect... lol
My built motor has stock size L19's and a stock headgasket. It sees 150shot and 42psi regularly without a problem. O-rings and copper gaskets are more maintenance and if your tune is far enough off to blow a headgasket, then the stocker could save you from destroying pistons. Copper and o-rings won't blow, and belong on high boost V-8's and honda's!

 

How much rwhp were you making?

 

Never actually dyno'd...lol It's a heads up Drag radial car and runs mid to low 8's. So based on what others dyno with this setup I'd guess 1300+

 

yeah but dsm's arent the same as 2jz's

 

Who said they were? I was retorting to his GENERAL statement with a specific example.

Regards.

 

pressure test your cooling system and see where the leak is coming from.

 

it's coming from the hg not sealing properly. So I called SCE. My o-ring pertrusion(sp) is .010-.012, so My head gasket should be .043 not .062. Guess I'll get one coming.