supra 2JZ head stud kit from ARP? (3 Viewers)

[landcruiser3DP]

is this a thing for the 80 series? snake oil? marginal improvement? who knows? other?

saw it mentioned in the “head gasket thread for FAQ” post and i’m curious.

THANKS

 

[NLXTACY]

Its canon law

 

[jjdeneen918]

I’ve read Supra 2JZ kit fits....

I’ve heard the Opal kit fits.....

I’ve read the following ARP hardware fits:

(14) ATP4.500-1LB - studs - 4.5" long 11mm x 1.25 pitch on the bottom, 7/16" x 20 tpi on the top - $8.60 ea.

(14) 300-8303 - nuts - 7/16"x20 - $2.16 ea.

(14) 200-8707 - washers - 7/8" outside diameter, 7/16" inside diameter - $0.94 ea.

(1) 100-9908 - ARP lube - $1.97

(1) 912-0004 - thread cleaner (NOT a tap!) 11mm x 1.25 thread pitch - $60.48

I haven’t compared contents of any of the kits, but maybe they are the same, maybe not.

It would be nice to have a definitive answer...

 

[ATXLX]

Did you print out a thread, take a picture of a post, and post it back on the same forum?

 

[landcruiser3DP]

Its canon law

joey. meaning a good idea to do if you are in there? or?

 

[landcruiser3DP]

Did you print out a thread, take a picture of a post, and post it back on the same forum?

yeah. beats trying to find it again on the forum.

 

[Rwhat]

ARP 2034205 Stud Kit.

 

[Rwhat]

I have personally used this kit. No grinding, enough thread engagement. Instructions state that you should re torque after a certain amount of miles. That requires the removal of the cams.

 

[NLXTACY]

joey. meaning a good idea to do if you are in there? or?

If you aren’t planning any engine modifications like turbo or SC, they aren’t needed. If you planning on it then also plan on Cometic gasket.

 

[landcruiser3DP]

If you aren’t planning any engine modifications like turbo or SC, they aren’t needed. If you planning on it then also plan on Cometic gasket.

got it. thanks a lot...

 

[jjdeneen918]

I just called ARP & confirmed individual part numbers in the Supra Kit 2034205.

Same as I listed above, which is good info if you loose or damage a piece of hardware. You don’t need to purchase a whole new kit.


(14) ATP4.500-1LB - studs - 4.5" long 11mm x 1.25 pitch on the bottom, 7/16" x 20 tpi on the top - $8.60 ea.

(14) 300-8303 - nuts - 7/16"x20 - $2.16 ea.

(14) 200-8707 - washers - 7/8" outside diameter, 7/16" inside diameter - $0.94 ea

 

[jjdeneen918]

If you aren’t planning any engine modifications like turbo or SC, they aren’t needed. If you planning on it then also plan on Cometic gasket.

There is debate on OEM (torque to yield) bolts being one-time-use. You COULD check them to ensure within spec, order new OEM bolts (expensive), or get ARP studs (cheaper).

It’s good to have options.

 

[NLXTACY]

There is debate on OEM (torque to yield) bolts being one-time-use. You COULD check them to ensure within spec, order new OEM bolts (expensive), or get ARP studs (cheaper).

It’s good to have options.

For me, OEM are single use. I don’t care about the debate.

I went ARP studs and I did retorque after break-in period. IIRC it was either one or two that ended up needing to be retorqued so I’m glad I did it.

 

[GSTMike]

For me, OEM are single use. I don’t care about the debate.

I went ARP studs and I did retorque after break-in period. IIRC it was either one or two that ended up needing to be retorqued so I’m glad I did it.

I've never been a fan of re-using a torque to yield head fastener regardless of what they might measure out to and be within spec, just all seems a ton of work and money to take that kind of risk!

 

[NLXTACY]

I've never been a fan of re-using a torque to yield head fastener regardless of what they might measure out to and be within spec, just all seems a ton of work and money to take that kind of risk!

Bingo

 

[landcruiser3DP]

Bingo

so am i hearing on a non-turbo or SC job i do want to verify they are using new bolts i gather? sorry, trying my best to keep up and get it done right...

 

[NLXTACY]

so am i hearing on a non-turbo or SC job i do want to verify they are using new bolts i gather? sorry, trying my best to keep up and get it done right...

Each builder/build needs to decide for themselves. TTY means they can be reused so long as they measure within spec, meaning they haven't been over-stretched. For me, I don't care, I just replace. Piece of mind. But you may have a budget to work with and all your bolts may be well within spec. According to Toyota that makes them ok to reuse.

 

[Heckraiser]

Your original bolts can be re-used, but they have to be checked to make sure they haven't stretched. New bolts would be a good safety precaution. :edit: 2 seconds late

 

[landcruiser3DP]

thanks gents. appreciate all the remedial help(!). new bolts for me if it is getting done...

 

[JZelnick]

For me, OEM are single use. I don’t care about the debate.

I went ARP studs and I did retorque after break-in period. IIRC it was either one or two that ended up needing to be retorqued so I’m glad I did it.

What was the break-in period? I just had these put on my truck after a head rebuild.