Help with some heads.

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Feb 3, 2011 | 08:17 PM

Blownlt1

Thread Starter

Instructor

Joined: Feb 2006

Posts: 105

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From: St. Louis Missouri

Help with some heads.

http://cgi.ebay.com/ebaymotors/799-L...item43a4e06e13

from what i see these will be safe to run, just tap the two holes and drill out the other two. Please inform me if im wrong.

Feb 4, 2011 | 10:55 AM

TXGS507

Race Director

Joined: Mar 2006

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From: Everywhere and Nowhere at all

hmm... $350 for some 799's... that you will need to work on vs. a used set of 243's for $400 or so...?? Not a good deal! JMO...

Feb 4, 2011 | 08:46 PM

nobreaks254

Racer

Joined: Oct 2010

Posts: 264

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From: aberdeen south dakota

I've bought a set of these heads from this guy a year or two ago. I thought it was a good deal. I also had them milled a bit to increase compression and make sure they were flat.

Feb 4, 2011 | 09:37 PM

sami85L98

Le Mans Master

Joined: Apr 2005

Posts: 8,077

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From: Scarborough ONTARIO

Quote:

Originally Posted by 0H1Z06

hmm... $350 for some 799's... that you will need to work on vs. a used set of 243's for $400 or so...?? Not a good deal! JMO...

799 is same as 243, there's no difference in 243 and 799 except tyhe number, $350 is a great price for 799.

Feb 4, 2011 | 11:34 PM

0331MARINE

Safety Car

Joined: Oct 2007

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From: You know your drunk when you swerve to miss the tree then you realize its your air freshener! Covington Ga

Quote:

Originally Posted by sami85L98

799 is same as 243, there's no difference in 243 and 799 except tyhe number, $350 is a great price for 799.

Unless they are off an 02-04Z......

Feb 5, 2011 | 12:14 AM

paint it black vette

Melting Slicks

Joined: Aug 2006

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From: port monmouth nj

Quote:

Originally Posted by sami85L98

799 is same as 243, there's no difference in 243 and 799 except tyhe number, $350 is a great price for 799.

just a different casting number

Feb 5, 2011 | 02:15 AM

sami85L98

Le Mans Master

Joined: Apr 2005

Posts: 8,077

Likes: 4

From: Scarborough ONTARIO

Quote:

Originally Posted by 0331MARINE

Unless they are off an 02-04Z......

799 introduced in 2005, some 2005 C6's have one side 243 head and other side 799, because those 243 on C6 in 2005 was left over from C5 Z06's, in 2005 GM gave contract to others and they named it 799 but basically same heads as LS6.

Another difference they came with steel valves and not the Ti or sodium fill valves...someone correct me if iam wrong, too tired to search.