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Andrew7dg
02-25-2008, 01:20 PM
Just a simple question...

I was just wondering why everyone mentions the g4cs to build when I have been searching for answers. Is it the better of the blocks to use?

I have a 4g64 from an expo and I am pretty sure it is the same block and that it will work for my buildup.

I am about to spend money building this up and I want to make sure that I won't regret this half way through when I find out I have the wrong block...

Another question, has any of the people on this forum had experience with the long rod (156mm) in their build up. I think they are extra money vs the standard 150mm. Supposed to give a better rod ratio but I don't know if it is even worth it.

There has been lots of talk about 2.0 vs 2.4L but from what I have found, the 2.4L has better street manor and better tolerance to detonation from say poor fuel. 2.0L makes a better race motor and hp however I just want to have a fun weekend driver.

Thanks!
JET
02-25-2008, 02:14 PM
There is an extra oil galley in the 4g64, no biggie though. I wouldn't bother with the long rod, it costs a lot more and the difference is small. You'll be very happy with the 2.4.
Jakey
02-25-2008, 03:36 PM
There is an extra oil galley in the 4g64, no biggie though.
I can't recall where, but a couple years ago I read a discussion where there were there a few more differences highlighted. Bearings?
JET
02-25-2008, 05:12 PM
Goatblower has a 4g64 in his I believe. The only real difference is the extra passage and that you have to tap for the knock sensor. A few don't have the right bung on them either, but most do.
1ViciousGSX
02-25-2008, 05:32 PM
Actually the log rod (at least in my engine) is 162mm long. If you are going to buy rods & pistons, there is really very little difference in price, if any at all. So why not get the best rod ratio you can?
Andrew7dg
02-25-2008, 10:40 PM
Actually the log rod (at least in my engine) is 162mm long. If you are going to buy rods & pistons, there is really very little difference in price, if any at all. So why not get the best rod ratio you can?

What kind of ratio does that turn out to be?
Where do you find that or who makes that?
I am guessing you use a stroker piston with that rod.

I can't recall where, but a couple years ago I read a discussion where there were there a few more differences highlighted. Bearings?

It would be great to post a link to that disscussion. So far it seems like they are equal blocks, cranks are the same.
blageo23
02-25-2008, 10:48 PM
Isnt it a g4cs not a 4gcs?
Andrew7dg
02-25-2008, 11:45 PM
Isnt it a g4cs not a 4gcs?


You are right, I messed up...
crazy_skier
02-26-2008, 01:03 AM
not sure on the differences but my car has one with aroud 15K at this point and it is running excellent with 350 awhp on a dyno dynamics and has been like that the whole time. Just make sure to keep the rpms a little lower but i'm sure you knew that ;)
Jakey
02-26-2008, 01:22 PM
This isn't the link I was thinking of but this is an outstanding white paper:
http://www.kidzuku.com/StrokeOrNot.pdf