ls1/ls6 block head bolts
04-21-2010, 04:00 PM
#1
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ls1/ls6 block head bolts I have a 2002 trans am, and I'm not sure if it came factory with an ls1 block, or ls6 block. either way, I'm going to put ls6 heads on the motor and I need to know if the head bolts were different between the two. What's the best way to tell? Or, does anyone just know off hand?
Thanks!
Thanks!
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04-21-2010, 07:11 PM
#2
SDPC sells two different head bolt kits
1997-2003 kit (10 long and 5 short) (The site says this includes Corvettes)
2004+ (all 15 bolts are short)
If this is correct, then you shouldn't have to worry either way. The first kit should work. Someone correct me if this is incorrect.
1997-2003 kit (10 long and 5 short) (The site says this includes Corvettes)
2004+ (all 15 bolts are short)
If this is correct, then you shouldn't have to worry either way. The first kit should work. Someone correct me if this is incorrect.
04-23-2010, 10:01 AM
#7
No real way to tell by looking at it. If you pull a bolt on the outside of the block you can tell pretty quick what year it is. If the bolt is 6" it is the pre '04 (long and short) bolts and if it is about 4" then it is the post '04 (all short) bolts.
We have both sets in stock in both GM and ARP. Let us know which one you need and we'll get you fixed up!
Jon
We have both sets in stock in both GM and ARP. Let us know which one you need and we'll get you fixed up!
Jon
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04-23-2010, 02:14 PM
#8
Well it's the factory block and it's in an 02 so I know it's pre 04, I was just unsure if the head bolt for the ls1 and ls6 blocks were different in 2002 some people say they are diff, and some people say they are the same. I just don't know what bolts I'll need.
04-23-2010, 03:46 PM
#10
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12-14-2010, 10:54 PM
#12
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this is the determining factor ^^^^, i have a gm warranty replacement in my car, its the ls6 casting, but somehow i got an 04+ block and i always have to remember that. i ended up ordering 2 set of head-studs because i thought there was no way i could have the 04+ block. i should have checked first
12-15-2010, 12:52 AM
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this is the determining factor ^^^^, i have a gm warranty replacement in my car, its the ls6 casting, but somehow i got an 04+ block and i always have to remember that. i ended up ordering 2 set of head-studs because i thought there was no way i could have the 04+ block. i should have checked first
07-20-2017, 12:44 AM
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No real way to tell by looking at it. If you pull a bolt on the outside of the block you can tell pretty quick what year it is. If the bolt is 6" it is the pre '04 (long and short) bolts and if it is about 4" then it is the post '04 (all short) bolts.
We have both sets in stock in both GM and ARP. Let us know which one you need and we'll get you fixed up!
Jon
We have both sets in stock in both GM and ARP. Let us know which one you need and we'll get you fixed up!
Jon
07-20-2017, 07:22 AM
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IF you would like I could take a picture of both early and late for you, I have a set of both. Early has 4 short and 16 long not counting the little one at the top that didn't change between year. The 04 and up are all long you can look up head studs on any website and it will show you.