6 bolt vs. 7 bolt [merged] 6bolt 7bolt 6-bolt 7-bolt six bolt seven bolt

[logic]

While you guys were busy pissing in each other's wheaties, I decided to actually go look this up for the fellow who posted originally.

Courtesy of a local fellow and DSMTuners member and VFAQ, here you go: http://hometown.aol.com/rcm1061/myhomepage/auto.html

Take that to your machinist.

[eclipse-gst339]

thanks alot logic. i really appreciate it i still don't know exactly how this site works

[frosh29]

Originally Posted by 92awddsm

The 1gb 7 bolt to 6 bolt swap only requires the 6 bolt flywheel. All the mounts and sensors are the same(the 7 bolt has the black top cas which will work fine on the swap) and the head and intake are the same as a 6 bolt. Basically, all you really need is the 6 bolt short block and flywheel but if you get the head also, all your original parts will work on it. I know this for a fact because I had a 93 tsi and still have a 92 tsi and everything was the exact same except for short block, flywheel, and cas. I also built the engine in both myself so I was able to compare parts to see the real difference for my self. And contrary to popular belief, the water cooled oil filter housing is even the same. I installed my stock 6bolt housing on my 7 bolt because the 7 bolt was contaminated with metal shavings and I was just too lazy to clean it when I already had a clean one sitting.

Thanks very much for the very very informative post!!!!! there is hope for my engine yet!!!

[rkarkosh]

I have a set of rods and pistons I thought were 6 bolt, but now I'm not sure. The pistons have the usual turbo designation on their faces but also have F1 embosed (my '92 Talon does not have F1). I have recently seen photos of 7 bolt pistons with the same F1. My question is how can I tell what engine the rods are from. Even if the pistons are 7 bolt, the rods might be 6 bolt modified to fit them. I appreciate any help. Thanks

[bloc]

if i remember correctly the rod bolts on 6 bolt big rods use a 14mm nut, and the ones on 7 bolt small rods use a 12mm nut. it has been some time since i worked on a 7 bolt though

[milenium99]

Just wondering if anyone has done this swap and could tell me if want problems I would face if any. My 7 bolt 1g isn't getting compression and I can get my hands on a 91 6bolt. Will it fit?

THanks
Junior

[dave99gst]

it should fit no prob-- ya just need the flywheel from a 6bolt.

[Michael Z.]

There very little to do other than parts swapping. It's not like trying to bolt a 6-bolt in a 2G. You'll have to swap the flywheel, maybe the thermostat housing (depending on the donor motor or if it's a JDM) and you're good to go.

[J95GST]

alright I have a few Q's

first one is
I bought a 1992 Gst i am planing on parting it out but was thinking about keeping the block build it and put it in my 2g. Is this motor out of the 1992 a 6bolt? how can i tell?

My goal is to be some where around low 12's 1/4mile time
So what im trying to figure out is should i do the 6bolt swap? or should i just rebuild my 7bolt that is already in my 95 Gst it hasn't walked and it has 139k would a 7bolt be able to hold that much ?? and if i was to do the 6bolt what all do i need ?

any info would help
thanks

[igopoopy]

http://vfaq.com/mods/early-late-engine.html

[talondude4]

You can tell if it is a six bolt by the oil pan...(This is what I have read). I believe there is an, indent on one end of the oil pan. (again i only read this from a previous thread).

[John99GSX]

Originally Posted by J95GST

My goal is to be some where around low 12's 1/4mile time
So what im trying to figure out is should i do the 6bolt swap?
would a 7bolt be able to hold that much??
and if i was to do the 6bolt what all do i need ?
thanks

Most people would recommend doing the 6 bolt. It the only true solution for the possibility of crankwalk.

With your goal of low 12's you would be fine on the 7 bolt, but crankwalk is always a possibility.

Some information on the 6 bolt swap can be found here..

http://www.magnusmotorsports.com/article_1g2g.htm

and

http://www.roadraceengineering.com/1gcasin2g.htm

[hisandherturbo]

what kind of history do you know about the 2G you have? the norm is, if it has been upgraded......... more specificly the pressure plate (that's a big contributer). and has 139k like you said..... you "should" be safe, if it is still stock then I personally wouldn't risk it......... have a 97 with a 6 bolt. Walked twice on me at 30 and 60k but I was always hard on it........ and it didn't stay stock for too long. so I put in the 6 and love it!!! so basicly if you don't know the history or it has been stock then I wouldn't really risk it....... if you know it has been modified and has no problem....... then go ahead and go for it........ but a 6 bolt swap is easy and most performance shops......... like to only deal in 6 bolts........ plus you have one, build it, then swap it, minimal down time.

[J95GST]

yeah i dont' know much about the history of the car i pulled the vin and it has never been wrecked but i'm pretty sure it has stayed stock untill i got it
but most likly it was drivin hard before me so i'mm leaning more to do the 6bolt since i got it and all would be kinda stupid not to
I just don't know how good i will be with swiching the wires and stuff Im not even sure what all has to change
guess i gotta start readin

[brandon2gtsi]

I have a 1993 Talon 2.0 non turbo with a blown engine and i have a 1991 Eclipse 2.0 Non turbo with a blown transmission. the 91 has a 6 bolt block and the 93 has a 7 bolt, does anything need to be modified to put the 6 bolt engine in the 93 for non turbo cars since they are both 1g's?

[Dauntess]

my friend wants me to put my old 1990 GST manual engine into his 1992 2.0NT automatic car. He has already stuck a lot of money into his car and wants a nice job. So a couple questions for you.

1. Will this work?

2. If it will work what are the parts i will need?

[Lordpaxin]

www.vfaq.com

you are doing 2 swaps here,
auto to manual swap, aswell as a T into NT swap, both are detailed in the faq pages.

Not to mention a few threads in this forum.

[dave99gst]

ya - the 6bolt / 7 bolt part are the least of your probs.

[Lordpaxin]

the 5 speed swap, isnt really that difficult, but labor and time entensive.

parts needed.
master cylnder
slave cylnder and lines.
5 speed tranny.
5 speed ecu.
shifter linkage and cables.

read the write up.

the 6 bolt swap is just part swaping, a little modifying of wires, and timing belt cover.

if you can follow directions and are moderatly technically enclined, you should be fine, but if changing your sparkplugs and wires or air filters and thinigs of that nature tax your ability. id advise locating a member in your area, or someone with general expertise.

because there is some needed drilling and cutting of firewall locations.
removal of the steering column.

[Dauntess]

lol i know what I'm doing. I know all about the 4G63 and what it can do. I use to read up on it every day. The cops around my town were harassing me about my car. I finally gave up and parted it and bought a stock civic. I never read anything about putting a 4G63T into a NT. Its just the engine going in not the tranny with it.

[Lordpaxin]

Check this stuff out.


Installing a turbo 4g63 into an nt 4g63 (give this dude a few reps points for this brilliant write up)

http://www.angelfire.com/il2/freesty...onversion.html
(another good info site)


good luck.