Another 7m ground up build

Z06gette

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#1
I’m fairly certain my car suffered the BHG last night from a freak heater hose incident. So as the title states I’m preparing to do a ground up build over the next year, goal is to finish it up before next summer.

I have A torn down 87na long block I got from Playaa69. If I’m going to rebuild I want a forged ground up build.

First thing is first I’ll be sending the bare block out to get cleaned tomorrow. Step two will be mounting the rear cover and sending it back for machining and measurements.

Here. We. Go.
 
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Z06gette

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#2
Ok called my machine shop we work with at the shop. They quoted me about $700 for a cleaning of the block, deck, and bore. And about 250-275 for a crank refinish fit with bearings.
How does this sound for prices???


Just did a cold compression test, 4 cranks
cyl1-125
CYL 2- 105
CYL 3 -120
CYL 4- 120
CYL 5- 90
CYL 6- 90
 

plaaya69

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#4
The crank finish sounds like a good price but when I had my block done they charged $100 to deck the block, $50 for freeze plugs, $75 to clean the oil passages (including the crankshaft ones), $50 for the oil pump bearings plus $43 in extra parts/labor. This was done at a machine shop that was connected to Bumper to Bumper but it never hurts to get another estimate. I think the most important thing is to see who is working there and the kind of experience they have because I will pay more if someone knows their job better than another place.
 

Z06gette

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#5
Ahh good info, there is a bumper to bumper 2 blocks from my house. Ill give them a call too. The machine shop I called was attached to a carquest in aurora but my boss has been doing business with the machinist there for 20 years. Seemed to know his stuff when I was asking him the questions. Was the Bumper to Bumper you went to in Waukegan?
 

Z06gette

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#6
That was a good recommendation there Plaaya! Called and talked to them, they were very familiar with doing Toyotas and quoted me $400 for a the block being freeze plugs parts and labor, deck, hone and bore, and clean the passages. For the crank they quoted $150 for a resurface and $50 to check the mains. $150 for a 3 angle valve job and $50 resurface the head. Not bad at all and theyre 2 blocks from my house, they will ship it out and deliver back to the store.

I like the sounds of that!

I was looking at JE pistons with Eagles rods and Clevite bearings.
 

plaaya69

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That was a good recommendation there Plaaya! Called and talked to them, they were very familiar with doing Toyotas and quoted me $400 for a the block being freeze plugs parts and labor, deck, hone and bore, and clean the passages. For the crank they quoted $150 for a resurface and $50 to check the mains. $150 for a 3 angle valve job and $50 resurface the head. Not bad at all and theyre 2 blocks from my house, they will ship it out and deliver back to the store.

I like the sounds of that!

I was looking at JE pistons with Eagles rods and Clevite bearings.
Glad to hear you have a Bumper to Bumper local, they did a great job and went the extra mile on my 7m. I could not have been more pleased in how everything turned out and will be going back to them for future Toyota projects...

That piston, rod bearing combo is a great choice.
 

Z06gette

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#8
Does anyone have any knowledge of upgraded Toyota rods? These ones I found are claimed to be upgraded Toyota that have been preened and coated??
 

Enraged

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#9
probably just referring to shotpeened and coated rods. Shotpeening: "Shot peening is a cold working process used to produce a compressive residual stress layer and modify mechanical properties of metals and composites. ... In machining, shot peening is used to strengthen and relieve stress in components like steel automobile crankshafts and connecting rods "

So, an upgrade over stock, but I wouldn't think they won't be as strong as Eagles
 
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debrucer

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#10
Nice having two machine shops to pick between, but I don't hear a question being asked about whether they have the torque plate required.

The lack of this equipment was justification not to use the shop when I built my engine. Has something changed? Technology perhaps?
 

Z06gette

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#11
I have read about the torque plate, this machine shop is huge and the machinist knew about the motor and said he has no problem tackling it. I should follow up and ask specifically before dropping it off there. Plaaya had his work done there and I know his car is done right so with that is encouraging.

Still want to go with Eagle rods, thanks for the clarification Enraged
 

plaaya69

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#13
I have read about the torque plate, this machine shop is huge and the machinist knew about the motor and said he has no problem tackling it. I should follow up and ask specifically before dropping it off there. Plaaya had his work done there and I know his car is done right so with that is encouraging.

Still want to go with Eagle rods, thanks for the clarification Enraged
On the JDM motor I had them work on, I did a very light honing because I actually went with the stock piston size but for oversized pistons I would recommend a torque plate. I also remember hearing to torque the timing belt tensioner down when honing the cylinders so the 1st cylinder has a perfect shape. There was recently a fresh batch of 7m torque plates made on SF and there is some who rent them out of you are looking for one.

On the valves, I have seen both the oem and performance valves on higher hp 7m motors but performance valves is better to have if you go that route for every extra bit of power you can get of the motor.
 

Z06gette

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#14
oh wow yeah I need to get in contact with them. Im not on the other forum so ill sign up and look into that, definitely want it done right
 

Z06gette

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#15
Debrucer, where did you end up getting a torque plate?


Also good thing I have a new oem belt tensioner and belt I opted not to use on my current motor because the one that was on there had about 15k miles on it.

JE pistons were ordered today.
 

plaaya69

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#17
Another question, my block is from an 87na and im doing forged pistons. What should I do about the oil squirters?
I made this thread not too long ago:

http://www.supramania.com/forum/threads/oil-squirters-keep-or-delete.248355/#post-2104892

It seems like it has always been a mixed topic with opinions but I have seen 2jz guys cap off those oil squirters ports running over 1k whp and I have seen those that do run with them also. This is for the 2jz but I do remember seeing a internal hex style screw set for the 7mGTE block to cap them off awhile ago:

https://www.powerhouseracing.com/product/5637/phr-oil-squirter-block-off-kit-for-2jz-gte

I personally do like to have them but there has been 7mGE blocks that have converted over to turbo in the past and I do not know of any problems caused by the oil squirters being missing.
 

Z06gette

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#20
The shop was going to be asking some other shops if they have one he can borrow. The guy on Supra forums wants almost $500 for rental with a $375 core. That’s just a lot to shell out for a rental. That’s like half the price of the machine work. I feel like I could have one made for less than that
 

plaaya69

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The shop was going to be asking some other shops if they have one he can borrow. The guy on Supra forums wants almost $500 for rental with a $375 core. That’s just a lot to shell out for a rental. That’s like half the price of the machine work. I feel like I could have one made for less than that
I would check with other members on this thread who bought one. That is more that the price of a new one was to own.

https://www.supraforums.com/threads/7m-torque-plate-interest.1113965/#post-13858931

I remember seeing on ebay a company who made torque plates used to sell 7m ones years ago, maybe they would make a another small batch of them if you contacted some of them.
 

Z06gette

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#22
I put in a couple of calls to some companies that specialize in honing and torque plates, one being CCA in Wisconsin. They charge $375 per torque plate made from 2'' 6061 aluminum and also advertise a rental service on their website.
 
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