will any head from a 90-94 fit this engine

[dunneracing58]

Ive got a 92 n/t 2.0 that needs a new head with valves, will any head from a 90-94 fit this engine. I had a 91 engine in it first, blew that one and used this engine. The 91 head was a different color metal but didn't look any different.

 

[91tsi617]

The turbo heads are pretty much the same as the non turbo heads with the exception of the cams, the nt is a 252 where the turbo is 248s.

 

[dunneracing58]

I was wondering that too, and will say a 90 head fit the 92 block? Thanks

 

[Cs4g63]

Yes the 90 head will fit your block.

 

[dsm-onster]

Ive got a 92 n/t 2.0 that needs a new head with valves, will any head from a 90-94 fit this engine. I had a 91 engine in it first, blew that one and used this engine. The 91 head was a different color metal but didn't look any different. Any tips and anyone have a head for around 75-100 bucks? Thanks!

WTF !!! take a pic if you can! ALL the 4g63s have aluminum heads. no different metals. All 4g63 heads for their respective year are the same, turbo or n/t or JDM or whatever, except for the cams.

A 1990 will fit perhaps an early 1992 block but it has to be a block w/ 6 bolts holding on the fly wheel instead of 7. 7 bolts are all later 1992 to 1999 4g63s. The 6-bolt block has larger diameter head bolts (about 1 mm). This is good for durability. Swapping a 6-bolt head onto a 7-bolt: use the 7-bolt head bolts and you'll be fine.

 

[casper_talon]

are all non-turbo cams the same?? the 5 speed ones vs. auto tranny ones?? I have both heads(6 bolt and 7 bolt) and they fit the same, except the 6 bolt head bolts are shorter and need a 13mm allen-hex socket and the 7 bolt ones use a 12 sided 12mm socket. The 6 bolt ones are wider and look tougher, and the 7 bolt ones look thinner. Which are best??

 

[dsm-onster]

are all non-turbo cams the same?? the 5 speed ones vs. auto tranny ones?? I have both heads(6 bolt and 7 bolt) and they fit the same, except the 6 bolt head bolts are shorter and need a 13mm allen-hex socket and the 7 bolt ones use a 12 sided 12mm socket. The 6 bolt ones are wider and look tougher, and the 7 bolt ones look thinner. Which are best??

Head bolts have to go w/ their respective block. You cannot put ANY head on a 6-bolt block w/out the wider 6-bolt head bolts. You cannot put ANY head on a 7-bolt block w/out the thinner 7-bolt head bolts. This yet another reason why the 6-bolt block is 'better' than the 7-bolt. Much less prone to headgaskets popping because the head bolts are significantly stronger. This puts off needing to get ARP hardware while going through the upgrade steps.

 

[dunneracing58]

I've got no luck on the picture, but the head that came off of my 91 motor was the normal aluminum color inside, but the head off of this 92 engine I have in it now, the inside of the head where the valves and cams are is a gold or bronze color. I'm also wondering if this engine is a turbo engine. I pulled it out of a junk yard car, the car did not say turbo or anything anywhere, but it had the turbo flywheel the pistons are dished, not flat tops.

 

[Defiant]

Check the VIN.
The color sounds like it was burning some oil.

Don't ask for parts outside the Classifieds, or the thread will get scrapped.

 

[HIGHPSI4]

The change in color of the alum. head comes from use. Bright silver- new build. Bronze- some use and good oil changed when needed. Brown- highly used head- burnt oil- cheap oil used and not changed when needed.

 

[luvmygst]

Just because the 6 bolt head bolts are bigger dont skimp on the ARP studs. They are well worth the money, they cost about 2x as much as replacement bolts so if you ever pull the head againg you have paid for them(remember you need to change bolts every time the head is pulled).
p.s.
What is a turbo flywheel?

 

[bastarddsm]

not on a 6 bolt, head bolts are not required to be changed, it may be a good idea though. However i have had good results not replacing them.

 

[dunneracing58]

The flywheel that came on the engine from the junkyard was completely different from the one already in the car. I went to get a clutch for it, told them it was a non turbo car, and the non turbo clutch didnt fit the flywheel. So they brought out the turbo clutch and it fit. Then that flywheel would not fit into my belhousing so I used the original flywheel. That's why I think it was a turbo flywheel.

 

[dsm-onster]

not on a 6 bolt, head bolts are not required to be changed, it may be a good idea though. However i have had good results not replacing them.

Yea. I ran my original 6-bolt head bolts after two blown head gaskets (first I blew an intercooler pipe and fuel dumped into the cylinders and the second was my dum-dum tuning experience at the time). But after I got things settled back down, I ran 20-22 psi and logged decent airflow for about a year of daily driving. The old head bolts held up.

I think ARPs are great. I use them. But I never pushed the old stock head bolts beyond what I did. I don't know what I could have gotten out of them. But 22psi w/ and almost 36 lbs/min is pretty high cylinder pressures for a stock set of head bolts.