head swap
Thread Starter
Drifting
Joined: Jun 2007
Posts: 1,987
Likes: 6
From: Arkansas
St. Jude Donor '11-'12-'13-'14-'15,'19
head swap
I am putting 2004 z06 heads and cam on my 99LS1. Do I use stock LS1 head bolts or do I use the 04 head bolts. I dont know what the difference is between the bolts.
Melting Slicks
Joined: Sep 2005
Posts: 2,568
Likes: 212
From: Winnipeg
I think the OP means whether or not you can use the 2004 style head bolts. Whichever bolts you use, GM or ARP, they need to be for a 2003 and earlier block. The 2004 block is different. 
Last edited by REDZED2; Nov 17, 2010 at 03:02 PM.
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
Use the 97-03 head bolts since you have the 99 block. The bolts for the 04 are 5mm shorter than the ones for the 97-03.
The head gaskets changed on the 99. The 97-98 used a perimeter bolt head that had an "indention" in the head that required a different gasket.
The head gaskets changed on the 99. The 97-98 used a perimeter bolt head that had an "indention" in the head that required a different gasket.
