Generation III Internal Engine 1997-2006 LS1 | LS6
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View Poll Results: Should I or Shouldn't I
Yes, port and polish them and install them
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No, just sell them
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Have some 853 heads, what to do

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Old 05-18-2006, 08:53 AM
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Default Have some 853 heads, what to do

My Z is almost finished for me. I love the feel of the car now, but don't know if I want to go through all the work of a head swap.

Question is, Should I go ahead and port and polish these heads and put them on my Z or finish up the suspension parts and call it a day.

2002 Z28 M6
stock 241 heads with 918 springs
TR230 cam and tuned
bolt ons
Old 05-18-2006, 11:23 AM
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Looks like you have all the other supporting mods.
Go For It.
But then again if you like the way your car feels now leave it alone.
IMO i would go for it.
Old 05-18-2006, 11:27 AM
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I'd put em on! You wanna go faster don't ya? If not, i'd give ya $100 for them. haha
Old 05-18-2006, 12:11 PM
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Originally Posted by 97MysticZ
I'd put em on! You wanna go faster don't ya? If not, i'd give ya $100 for them. haha
Have been thinking about selling them, as I am very pleased with the cars power level now.

As of right now, I am not selling till I make up my mind.
Old 05-18-2006, 06:54 PM
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You would be better off to port the 241 heads.
Old 05-18-2006, 07:34 PM
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Get aftermarket heads. I must say that my TR230 and my 5.3 stage 2 heads kick ***!

Just note that you gotta have headers to go with a H/C setup.
Old 05-22-2006, 08:45 AM
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Originally Posted by DaleMX
Get aftermarket heads. I must say that my TR230 and my 5.3 stage 2 heads kick ***!

Just note that you gotta have headers to go with a H/C setup.
I do have headers.

why did you go with 5.3 heads?
Old 05-24-2006, 10:01 AM
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ok, another decision to make...

I have just aquired a set of 6.0 lt heads, would these be better to use?
Old 05-24-2006, 10:14 AM
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They flow better out of the box, but you will lose alot of compression with the 6.0 heads and you can only mill them so far.

There is nothing wrong with porting the 853 castings at all. Some porters even prefer them over other castings. Heck I'm running some old ABS heads (853's) and putting down 461/425 on a reletivly small cam. I say go for the 853's or send in the 6.0's to have the chambers welded up to bring your compression back up. This is what Patriot calls LS6 style heads .

Dan




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