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

[me612]

on one, 6 bolts hold the flywheel on, the other has 7 of em holding it on! plus 6-bolts have lower compression, better flowing heads and intake manis and throttlebodies. that's all i gotta say for now, sumone else will pick up where i left off im sure

[AWDlaserRS]

I got a question to add to that.

I have a '92 wich has the early 7 bolt (no crankwalk) my question is do the 1g 6bolts still have better heads, manifolds, ect or are they the same? Because I know the 1g 7bolt have the same stock HP.

[NOSNUSE]

as far as the diff between 1gen motors it's the number of bolts and the smaller rods, but the compression is the same, and in late 93 I believe they switched to a smaller thottle body and smaller cam specs but that is all I can really think of right now.

[reese]

my 7 bolt ate a valve and its toast. so i was wondering if i can use the same timing belt since mine is only about 10k old. im in the market for a 6 bolt as well if anyone knows where to get just a block or a built motor or something along those lines let me know.

thanx for the space

[Jason84]

yeah im pretty sure they are the same...

one way to find out is to go online and look at a dsm shop if there is a 6 bolt/7 bolt option the parts are probably different if not they are probably the same

[AWDlaserRS]

Yeah Ive seen both and they are exactly the same you should be able to just swap it over like you said.

[reese]

alright thanx for the replys guys

[About2Bturbo'd]

what is the diff. between a 6 bolt and a 7-bolt?

[agressivedsm]

i think the main difference is the crank setup is different. like the size of the bearings and what not. alot of people say its better to run 6 bolts but the conversion seems like a pain in the azz. i like my 7 bolt just fine. i still smoke em"

[About2Bturbo'd]

how do i know if i have a 6 bolt or 7 bolt?

[About2Bturbo'd]

also....i have a '98 Eclipse RS....is that a 420a or 4g63?

Its a 420a. A 6-bolt is used in place of the 7-bolt because it has less of chance of developing crankwalk.


Luke

[reese]

6 bolt is pre either may or march of 1992....i think march....everything else is 7 bolt....at least for the 4g63

[evotuner]

Are there any differences between a 1G 6bolt and 7bolt head, or are they interchangeable? Please help me out, but don't guess!
Thanks

[dave99gst]

i assoume you mean .. 6/7bolt but both 1g ? if so then no. if you mean 1g/2g then yes there differant.

[g0tEclipseD]

I have a 1992 Eclipse GST. The sticker with curb weight, vin etc says production date was July 1991.

Do i have a 6 bolt or a 7 bolt. If its a 7 bolt, what drawbacks will I have with modding and is there a possibility of crank walk on a 1g 7 bolt?

thx

[Defiant]

6, and not enough to worry about.

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

[VexRacing]

I was having an oil leaking problem on my gst and it turned out to be the valve cover was cracked. So I went to napa to get the gasket and I go to put it on and it was the wrong gasket. so I swing back to napa and double checked it, so I asked for a 91 gst gasket and it was the right one. I would think that all the turbo motors would be the same but is this a way to tell if its the 6 bolt. I bought the car and no one knew anything about it. What are the signs that a 6 bolt was swapped. Let me know it would be pretty nice if it had one already. Thanks

[Defiant]

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

[domino]

My engine doesn't look like the one in my friends GS-T (its a 95 tsi)

can anyone post a pic of a 6bolt engine beside a 7bolt... im trying to see the differences to find out if maybe i got lucky

[clownface]

the 6 and 7 bolt look the same only difference you can see on the ouside is the oil pan, i think, post sum pictures

[Defiant]

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

[switch]

Are the redtop 4g63s 6 or 7 bolts ?? do they crankwalk?