ls1 or ls6 block

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Jan 2, 2005 | 05:48 PM

#16

DanBUCF

Registered User

Joined: Aug 2003

Posts: 659

From: Orlando, Florida

Re: ls1 or ls6 block

I'm assuming the 241 on the head is the casting #...I checked mine, my roomates, and my buddy's....we all have 2001 cars. All the heads say 241

Jan 2, 2005 | 09:16 PM

#17

Barbs97Z28

Registered User

Joined: Feb 2001

Posts: 27

From: Freconia,Wisconsin,USA

Re: ls1 or ls6 block

241 Heads not sure? Saw a post that that said they had 241 heads. I looked at my engine and saw the same 241 on my engine head. Does this mean somthing. Thanks!

Jan 2, 2005 | 09:27 PM

#18

SSpdDmon

Registered User

Joined: May 2003

Posts: 1,747

From: Farmington, MI

Re: ls1 or ls6 block

Quote:

Originally Posted by Barbs97Z28

241 Heads not sure? Saw a post that that said they had 241 heads. I looked at my engine and saw the same 241 on my engine head. Does this mean somthing. Thanks!

http://web.camaross.com/forums/showthread.php?t=328885

241 is a casting number for LS1 heads. 2001 and up it seems since mine is an '04.

Jan 3, 2005 | 01:37 AM

#19

PJS TOY

Registered User

Joined: Sep 2002

Posts: 162

From: Valrico, Fl

Re: ls1 or ls6 block

The LS6 block is also a darker color due to using a different casting method. The improved casting method is to make it stronger. All LS series blocks used the same LS6 casting method after 2002. This was all on one of the Corvette forums a while back. Those guys seem to have a source for details that most of us never hear about.

PJ