4g63 Heads...

[JayRome]

keep them rolling in.... if you guys get a chance and take a pik and post it up... maybe we could document this...

 

[GSR]

'88 vr4 - 2.0 and 6
'88 vr4 - 2.0 and 5

ggsr - 2.0 and 5
ggsr - 2.0 and 1
ggsr - 2.0 and 7

'92 cb gsr - 1.8 and 5 (got two with same numbers)

if needed i can take pictures tomorrow.

 

[brettu26]

Any posibility it could just be a date/month stamp?

 

[to4garret]

its a casting mark, signifies the generation of mould used when casting the heads.

 

[JayRome]

also trying to figure out, which ones came with the upper oil regulator...

 

[DZN60]

mine has 2.0 and 11 under it whats it from?

 

[runuts]

Evo 3 gsr
g6k
6

 

[EVOCPE]

VR4 Big Port - 2.0
4G67 - 1.8
EVO 1 - G6K - 1, 2
EVO 2 - G6K - 3, 4
EVO 3 - G6K - 5, 6

My RVR head has 6GS - 3

 

[JayRome]

mine has 2.0 and 11 under it whats it from?

i would believe a VR4....

6bolt heads seem to have the 2.0

7 bolt heads have the G6K

goo info guys.. keep em comin....

 

[DZN60]

i would believe a VR4....

6bolt heads seem to have the 2.0

7 bolt heads have the G6K

goo info guys.. keep em comin....

awesome thanks for the info

 

[DZN60]

Turns out my engine prob was cause from head being stuffed the new head has 1.6l printed on it but it's a twin cam sonata head is it gonna work or cause me problems down the track?wouldn't the 1.6l mean it's off a 1.6l not a 2ltr ?

 

[mattrat]

1.6ltrs are good, 43cc dish instead of 47, higher compression, put on on my n/a went hard

 

[to4garret]

4G67 heads are also 43cc

 

[DZN60]

So will it work and not cause me any problems? The engine place that has it said it's from a 20ltr sonata but on the head it had 1.6l does that mean its from at 1.6ltr?

 

[DOUGMO]

yes its from a 1.6

 

[DZN60]

So I can't use it huh? the guy is just trying to get money cause it has been sitting there for a year from a previous customer that didn't pay their bill

 

[to4garret]

it will work, but its not the right head.

there is also a "small" and "big" port version of the 1.6L head, hyndak ones are surposed to be the "big" port version, same as a VR4 head.

you will need to swap cams between the heads and then using it will bump your compression ratio up a bit. which isnt necessarily a bad thing.

 

[DOUGMO]

as above it has smaller combustion chambers so the comp will go up a bit - you will need to get them (or do it yourself) to calculate your comp ratio which will depend on the current pistons and headgasket width that you have now

 

[DZN60]

How can I tell it's the big port head ....is there a way to make it just like my vr4 head?

 

[to4garret]

How can I tell it's the big port head ....is there a way to make it just like my vr4 head?

1st question: the ports will be the same size as a VR4 head.

2nd question: i will say no, the combustion chamber is a different size, you *could* get it modified to the same cc volume as a VR4 head, but it really isnt worth doing a cheap job.

keep looking, thats my advise.

surely your old head could be fixed>?