How To Tell If My Head Is A Terminator?

shaunspengler · Jun 19, 2012

hi as you can tell ive just put a down payment on a cobra terminator engine. today i gave the guy 350$ and he gave me one head. i was wondering if anyone could tell me or give me any info so i could see if these are 03/04 heads/ engine. all i can say is i know its aluminum and its got 4 valves and 2 cams. i can take pictures if that will help.

hotcobra03 · Jun 19, 2012

pic
,casting number on side.
both cam part numbers
than you will know

Thomas Morrison · Feb 7, 2013

casting number.

The 03-04 heads are the same as the 99s
There was an update on them in late 03 or 04 where they went to 8 thread spark plug holes.

Noobz347 · Feb 7, 2013

If it looks anything like this:

Then you have a Terminator head.

Your welcome.

Gearbanger 101 · Feb 7, 2013

Thomas Morrison said:
The 03-04 heads are the same as the 99s

That would be incorrect.

The '03's are a differnt casting numbers for starts. Dimensionally with large rectangular exhaust ports, larger volume intake ports with reshaped and raised port roof with a revised short turn radius. The heads were also of an over all higher quality casting than previous DOHC heads, which netted better finish and geneally higher out of the box flow ratings.

The revision took place in mid-03 to solve cooling issues and were identifyable with a blue paint mark on the drivers side casting.

Thomas Morrison · Feb 7, 2013

Oooo really?

Differences? We are all down to learn. I have a set of 2001 heads and a set of 04 heads next to each other and the flow characteristics look identical. The only thing I can think of is the cooling passages and the spark plug threads

Gearbanger 101 · Feb 7, 2013

Thomas Morrison said:
Oooo really?

Differences? We are all down to learn. I have a set of 2001 heads and a set of 04 heads next to each other and the flow characteristics look identical. The only thing I can think of is the cooling passages and the spark plug threads

See my edit above. Just because they look the similar from the outside, doesn't mean they're the same head.

Nearly all 5.0L 302 OHV heads looked alike visually thoughout the 80's as well...but we all know some were better than others.

Noobz347 · Feb 7, 2013

...I've never been able to bench-flow heads by merely looking at them. That generally requires some pretty specialized equipment.

In other words: How the heads look is irrelavant.

Thomas Morrison · Feb 7, 2013

Interesting. I would like to see the CFM numbers between the two heads. I put the 03-04 heads on my 2001 but i dont have dino. numbers so no comparison.

At least I know I did the right thing.

Thomas Morrison · Feb 7, 2013

Noobz347 said:
...I've never been able to bench-flow heads by merely looking at them. That generally requires some pretty specialized equipment.

In other words: How the heads look is irrelavant.

Lol I have awesome analizing eyes... not
I know you can't but Ive never seen the numbers so its all I have. My point was its really hard to SEE the difference like he was asking for tips on

How To Tell If My Head Is A Terminator?

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