2003 C-5 What Heads do I have?

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Dec 28, 2004 | 05:50 PM

Honez

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From: Mission Viejo CA

2003 C-5 What Heads do I have?

Does anyone know if this car has LS6 or LS1 style heads?

Dec 28, 2004 | 06:29 PM

badpewter-z

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From: RI

c5=ls1
zo6=ls6

but you do have the better of all stock ls1 castings

Dec 28, 2004 | 07:34 PM

~JOSHUA

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From: Atlanta

Quote:

Originally Posted by Honez

Does anyone know if this car has LS6 or LS1 style heads?

Look at the casting number. 241= good LS1 heads. dat b it!

Dec 28, 2004 | 11:00 PM

Honez

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From: Mission Viejo CA

Looks like I do have the 241's, my quesiton now is should I have these worked up or should I go with a set of the AFR's stage II's or PP stage II's? Are these 241's better to keep and work up?

Dec 29, 2004 | 12:13 AM

BlueSix

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From: its fucking cold

If you have the coin to spend go for the AFR's. If you can't go all out, go for porter LS6 (243) castings, if money is a big concern, get the 241's reworked.

Dec 29, 2004 | 12:22 AM

azgasser

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Quote:

Originally Posted by FIREHAWK#608

Look at the casting number. 241= good LS1 heads. dat b it!

where do I find the casting number?

Dec 29, 2004 | 12:27 AM

BlueSix

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From: its fucking cold

I believe it's on the lower portion of the head at the front of the engine. I know it's at the front, just not sure where on the head it's located...i've only checked a couple dozen casting numbers, you'd think i could remember. What year is your car? I can tell you what heads you have from that info...

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Dec 29, 2004 | 11:05 AM

CharlieLed

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From: San Diego

Quote:

Originally Posted by azgasser

where do I find the casting number?

Lower right corner of either head, on a pad just below the valve cover. It will be a 3-digit number. If the engine is in the car then look on the passenger side head, it will be at the front of the engine.