Is there any dirrerance in the Left and Right head 2.8 V6?? are they completely interchangable from left to right? thanks

The cylinder heads are the same, they are interchangeable. If you swap them or get a replacement from the other bank you will need to add the CTS or plug depending which bank you place them on. The right head ( trunk side ) has the CTS and the left head ( bulkhead side ) has a pipe plug.

If you put a head on from the other side, clean the treads out on the side of the head with a tap or tread chaser first before installing, it will make installing the bolts for the brackets much easier.

[This message has been edited by jelly2m8 (edited 03-01-2011).]

quote Originally posted by jelly2m8: The cylinder heads are the same, they are interchangeable. If you swap them or get a replacement from the other bank you will need to add the CTS or plug depending which bank you place them on. The right head ( trunk side ) has the CTS and the left head ( bulkhead side ) has a pipe plug. If you put a head on from the other side, clean the treads out on the side of the head with a tap or tread chaser first before installing, it will make installing the bolts for the brackets much easier.

exactly what i was looking for! thanks. the only thing i noticed was a head bolt on one side was different,i think it had a spacer or something, but i dont remember which side.

quote Originally posted by jelly2m8: you will need to add the CTS or plug depending which bank you place them on.

Just for name clarification, the sensor in the head is the Temp Gauge Sending Unit. The Coolant Temperature Sensor is underneath the thermostat housing and fits into the end of the lower intake manifold. Otherwise, what he /\ said.

Instead of putting a Plug into the second Hole, Use it for a Mechanical Temp Gauge. thats what I did, you can have BOTH that way.

quote Originally posted by fierofool: Just for name clarification, the sensor in the head is the Temp Gauge Sending Unit. The Coolant Temperature Sensor is underneath the thermostat housing and fits into the end of the lower intake manifold. Otherwise, what he /\ said.

Just for proper name clarification, the sender in the head for the gauge is referred to as Coolant Temperate Sender / Switch as per the GM service manual, so CTS is correct when describing this sender.

The P22 labels the one underneath the thermostat housing as a "Sensor, Coolant Temp, ECM". It's also labeled as such in the wiring schematics for V6 fuel injection engine data sensors.

The one in the head is labeled "Sensor, Coolant Temp Gauge/Hot Light". My Haynes, Chapter 3, figure 12.4 calls it a Coolant Temperature Sending Unit. In Chapter 3 section 13 it's also called a Coolant Temperature Switch. I couldn't find the unit in the V6 wiring schematics or the P22. It's easy to see the confusion with different sources putting different name tags on things.

Haynes manual's are a poor source for accurate info as they use generic terms and repair procedures and should never be relied apon for absolute correct information.

Pick yourself up a factory service manual it is a wealth of information. Either way, both the sender/ switch and sensor, can be referred to as a CTS, The OP was talking about the heads, I can't see why the coolant sensor in the intake manifold should have ever been mentioned as it is irrelevant in the OP's question.

[This message has been edited by jelly2m8 (edited 03-01-2011).]

Speaking of generic procedures, I think even the Fiero Haynes manual has a section on steel bodywork...

Yeah, but they are all the same generic "how-to".

quote Originally posted by jelly2m8: Haynes manual's are a poor source for accurate info as they use generic terms and repair procedures and should never be relied apon for absolute correct information. Pick yourself up a factory service manual it is a wealth of information. Either way, both the sender/ switch and sensor, can be referred to as a CTS, The OP was talking about the heads, I can't see why the coolant sensor in the intake manifold should have ever been mentioned as it is irrelevant in the OP's question.

You're right. I just picked up on your labeling it CTS. I guess the least confusing description might be 'the temperature sensor with the round head' and 'the one with the oval head'. The one with the round head must be moved or located into the head nearest the trunk if you're using a head that originated from the side near the passenger compartment.

quote Originally posted by jelly2m8: Pick yourself up a factory service manual it is a wealth of information.

Downloads http://www.fieronews.net/fusion/downloads.php

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