Which head will work?

[Shadowofoblivio]

Im trying to get my 90 laser running and i need to get a complete cylinder head, problem is, no turbo 4g63's at the junkyard. will the n/t 4g63 head work? what is the difference between turbo and n/t head? also are the n/t cams the same as the turbo cams? Oh and will the old garret chrysler turbos fit or will it be more work than finding a 14b?

Btw: i did search

 

[92awddsm]

The only diff between the turbo and n/t head is the cams

 

[91 white tsi]

Does anyone else agree. If thats true i can get my other engine running

 

[Shadowofoblivio]

What about the garret chrysler turbos? will those fit on the stock manifold? plus lines? thanks for the help

 

[92awddsm]

What about the garret chrysler turbos? will those fit on the stock manifold? plus lines? thanks for the help

No.

 

[Shadowofoblivio]

Ok thanks for the help. now i might be able to get it running in the next couple of weeks

 

[91 white tsi]

Can i get a few other fellow DSMers saying the NT and turbo heads are the same minus the cams. I have 4 sets of turbo cams so its not a biggy

 

[midnght]

He is correct. There is a difference in 6/7 headstud hole sizing though. Just a little more info. Might be relevant, might not.

 

[91 white tsi]

Can you explain the difference in that please? I have a few non turbos in the junk yard how do i know what will work

 

[midnght]

The thing I am not sure of is the 7bolt 1G head hole size.

When you go to order ARP's for the 4G63 it has the 6bolt and 7bolt listed as different part numbers. One is larger than the other. This is true for 1G 6bolt heads compared to 2G 7bolt heads.

I guess the thing would be to go to ARP's website or search around the N/T section to see what they use for HeadBolts.

 

[1990greenGSX]

The thing I am not sure of is the 7bolt 1G head hole size.

When you go to order ARP's for the 4G63 it has the 6bolt and 7bolt listed as different part numbers. One is larger than the other. This is true for 1G 6bolt heads compared to 2G 7bolt heads.

I guess the thing would be to go to ARP's website or search around the N/T section to see what they use for HeadBolts.

here is the specs on ARP head studs:

6 bolt 1g (89-92.5) ARP 207-4201 12mm studs
7 bolt 1g (92.5-94) ARP 207-4203 11mm studs
7 bolt 2g (95-99) ARP 207-4203 11mm studs

as for the n/t and turbo heads. There are differences other than the cams.. The valves are different between the Turbo and N/T heads as well

Mark
SBR

**EDIT** Valves are the same...sorry...

 

[midnght]

here is the specs on ARP head studs:

6 bolt 1g (89-92.5) ARP 207-4201 12mm studs
7 bolt 1g (92.5-94) ARP 207-4203 11mm studs
7 bolt 2g (95-99) ARP 207-4203 11mm studs

as for the n/t and turbo heads. There are differences other than the cams.. The valves are different between the Turbo and N/T heads as well

Mark
SBR

Does this lead to different guides, springs, and retainers? Or is it simply a weaker valve?

 

[92awddsm]

here is the specs on ARP head studs:

6 bolt 1g (89-92.5) ARP 207-4201 12mm studs
7 bolt 1g (92.5-94) ARP 207-4203 11mm studs
7 bolt 2g (95-99) ARP 207-4203 11mm studs

as for the n/t and turbo heads. There are differences other than the cams.. The valves are different between the Turbo and N/T heads as well

Mark
SBR

This is news to me. Can you elaborate on the difference? Last time I looked, valves had the same part# on both heads.

 

[Sean485]

here is the specs on ARP head studs:

as for the n/t and turbo heads. There are differences other than the cams.. The valves are different between the Turbo and N/T heads as well

Sorry, but no...

2.0 Turbo and 2.0 NT Intake valve: MD127840
2.0 Turbo and 2.0 NT Exhaust valve: MD127841

Only difference is the camshafts and the NT head having a block-off bolt where the turbo oil feed line is on a turbo head which can be removed for use on a turbo car.

 

[RamenPride]

Can i get a few other fellow DSMers saying the NT and turbo heads are the same minus the cams. I have 4 sets of turbo cams so its not a biggy

that always seemed to be the general consensus

 

[1990greenGSX]

that always seemed to be the general consensus

Yes i was wrong with the valves, they are the same ***cowers***

Mark
SBR

 

[Shadowofoblivio]

well after i get out of school im going to take a trip for a n/t head. $27.95 i love pick and pull places
also my pistons are suppose to arive today

 

[igopoopy]

yep just the cams i would know i have a slow car