JDM 7M-GE

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xms

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Jan 25, 2006
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I got a cressida that needs a new motor, got a jdm on the way would it be wise to retorque head on it before installing it? and if it does need to retorque how much ft lbs should it be?
 

supramacist

Banned
Apr 8, 2006
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The Grassy Knole
Stock Bolts????

Cause it's not bad enough you purchased a jdm and aren't planning to rebuild it before install. But stock bolts???? please.

You can't torque stock bolts as tight as you need to without stripping some threads and risking another bhg.

So unless your'e looking to buy another engine real soon..., you could atleast use arp bolts if not studs.
 

blackgraz

Racecar Driver
Nov 13, 2006
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supramacist said:
Stock Bolts????

Cause it's not bad enough you purchased a jdm and aren't planning to rebuild it before install. But stock bolts???? please.

You can't torque stock bolts as tight as you need to without stripping some threads and risking another bhg.

So unless your'e looking to buy another engine real soon..., you could atleast use arp bolts if not studs.

^^agreed
Yeah I would put a lil more money into rebuilding some parts of it before putting that JDM into your car. Im just now paying for things that i didnt do when i did my swap.
 

IJ.

Grumpy Old Man
Mar 30, 2005
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ARGHHHHHHHHHHHHHHHHHHHHHH DIE URBAN SUPRA MYTH DIE!!!

there is NOTHING wrong with the stock headbolts NOTHING......

They cop a bum rap due to the incorrect torque setting specified for the Older style HG nothing more!

How often do you hear of a stock Main Cap bolt giving trouble?? NEVER same diameter bolt same supplier just torqued correctly for the application.
 

supramacist

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Apr 8, 2006
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All I'm saying is this. Some of my stock head bolts were missing threads when I removed them and it would be nice to not have that happen.

I'm not going to argue about it.

Your'e either part of the problem,
Part of the solution,
Or your land scape.

Half ass your build and see where it get's you.
 

CRE

7M-GE + MAFT Pro + T = :D
Oct 24, 2005
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The threads on a couple of mine were in really bad shape as well.... It's not a matter of OEM bolts being poorly made, but you've got to admit, depending on 20 year old head bolts definitely isn't playing it safe.
 

cuel

Supramania Contributor
Jan 8, 2007
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I agree with IJ. The stock head bolts in my car are torqued to 75 ft. lbs., and I didn't even buy new ones (yeah, I know, shame on me). I will recommend using new bolts to everyone else though, just to be safe.

By the way, How's that "halfassed" build of yours coming IJ? Don't recall seeing a post in "what I did today" for a couple days. Its one of the few builds I pay very close attention to.

EDIT: Search this forum for JDM motors, and you'll find that better than 50% of those posted have major issues in a short amount of time if they don't have a good rebuild with mostly new parts.
 

IJ.

Grumpy Old Man
Mar 30, 2005
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supramacist said:
Ya...., with ARP hardware.
Damn dude you just don't know when to quit when you're behind......

What you have one (1) 7M build under your belt that's not even done yet?

Now you're the authority on all things 7M.....

Do a search and check out Reg Reimer's data on the stock headbolts and show me where they're sub standard in any way.

If people choose to replace their stock bolts with new stock bolt's torqued correctly and then retorqued correctly they won't have an issue, not everyone wants to nor has the funds to buy ARP gear yet YOU make it sound like there is no option but in reality you have NFI and are just parroting garbage you've read on the net......

Get a clue then start handing out advice until then STFU and actually take some time to learn a little about the subject.

I post from experience NOT crap I've read and even then I'm still learning all the time and very happy to be proven wrong.

Cuel: LOL I have more $$$ in my Halfassed Headwork than this guy has in his entire car! ;)
 

blackgraz

Racecar Driver
Nov 13, 2006
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DFW Texas
wow.......IJ, but wouldnt you agree you would need to do some things like IE...change headgasket/oilgasket..and such when doing a JDM swap?
 

IJ.

Grumpy Old Man
Mar 30, 2005
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Graz: Only way I'd bother with a JDM is if I was going to rebuild it fully before dropping it in, It's still a used motor that you have NFI what it's history is.

I'd prefer to use my own motor as a base.

Having said that people will continue to buy these things so yes at a bare minimum I'd do the HG fluids and freeze plugs before dropping it in.

Sorry if I'm coming across harsh but shit like this has the potential to cost newbies a lot of $$$ in the long run and I get a little bit pissed off at all of the Urban Myths surrounding our motors.
 

RallySoob

Rally Man Sam
Nov 2, 2006
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Oregon
:icon_conf my stock head bolts were re-torqued to 85lbs. Seems to be fine so far... But i think i read somewhere that 72lbs was perfect for stock headbolts, and i think the ARP's are supposed to be around 100lbs. (Factory Torque is something like 63-67lbs i think) Good luck...
 

IJ.

Grumpy Old Man
Mar 30, 2005
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You keep acting like you have an argument or a position counter to mine on this.... give up you have NFI and are just making noise.

Address some of the questions I asked a couple of posts back and be prepared to back it up with some data showing that stock head bolts are substandard then we'll discuss it until then just STFU as you have NOTHING worthwhile to add.
 
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