Jackson Auto Machine is awesome. They were the machine shop for Extreme Motorsports car for years. Sean did his own assembly but they did all the porting/machine work for him. Bare in mind his car/s are/were in the 900+ HP range. I had one of their motors and it was top notch.

 

one engine builder can be better than another because they habitually take more precautions like assembling everything in a clean room that is temperature controlled.

 

I ordered a set of gaskets from them when I built the 4g64 and they were paper thin. They were not mitsu gaskets...

 

everyone keeps saying paper thin gaskets... does everyone know that gaskets are suppose to be paper thin... the larger a gasket is the more surface area there is for pressure to push it outwards. that means it's harder to blow.

it's a press vs push ratio. the head is gonna press it down a certain fixed amount because it's torqued. only the thickness of the gasket changes this ratio... and making the gasket bigger makes it easier to blow.

i understand in certain applications it's meant to be thick for decompression reasons. and in that light it's perfectly fine.

if a motor and head mating surface is true because it was done true by meticulous professionals a thin gasket is not something that is bad. of course the gasket has to be made of something that is strong... if it was a PAPER gasket... then of course there would be some yelling going on.

 

I have never had any direct contact with JAM, but tuned a few cars with their motors. All cars ran extremely well and had no issues and are still running great today.

 

I was talking about the gaskets for the oil pump, oil filter, water pump etc.. They were just way to thin to be useful. I was afraid it would leak so I went to local auto parts store and picked up a set of Felpro gaskets for 20 bucks...

 

JAM seemed like a very reputable shop from what I've experienced and seen. Had my head resurfaced there with few extra touches. My head came back looking better than new, incredible attention to detail. And I was very impressed with their shop. Even got to see their engine dyno room!

Little did I know that they've been dealing with JDM evos long before our 8 and 9's, not to mention over a decade experience with DSM 4g63's.

Just don't make the mistake like I did thinking Ms. Carmella Jackson is their secretary. She's a full fledge machinist! And don't give her any bull or she'll...

Great people, very personable, answers all questions and they're 2 miles from my house!!!

 

They have more experience building 4G63's than buschur or AMS. They are an extremely awesome machine shop, one of the best on the east coast. They really, really, REALLY know 4G63s, and do incredible work. They can do anything, custom designed pistons, CNC machine porting, flow testing, magna fluxing, etc. I can't say enough good things about this shop.

 

+eleventybillion

Carmella is just plain awesome.

 

so to have work done is it true tha another shop must pull the block and then the block must be sent to Jam. I will be seeing them soon...kinda cool they are so close to me......

 

ummm yes, no machine shop will work on an entire car (usually). You just hand over the block or head (or both) to them and then they work their magic.

 

JAM is certainly worth considering.



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He is very correct!

I had all of my installation/removal work done at a Mitsu dealer (I know the master tech and he has built up some serious monster DSMs) and I am still in awe of how well my car runs right now.

Edited: to remove incorrect info.

 

Ive got their venolia/oliver 2.3, they did my head too. Ive made about 700whp with a gt35 and nitrous. Still goin strong.

I agree with that other guy, i doubt most of the big names actually build motors. Ha, imagine what some of the "name worshipers" would do if they found out their motors were actually built by Bubba's machine shop. Not that theres anything wrong with that as its not hard to build these motors.

 

That's unusual. Most automobile machine shops will assemble a long block for you, particularly if they do both the short block and the head. Many prefer to do that, just to make sure that it's done right and the stack up tolerances fall within limits.

I sure don't understand why they would install your balance shafts if you had them machine and assemble the short block. That's just strange.