difference in years
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From: Cedar Rapids, IA
difference in years i used to have it saved in my favorites but idk wat happened. couldnt find it in ne stickies. please give me find where its listed with the differences between years. thanks
Joined: Nov 2001
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From: Schiller Park, ILL Member: #317
Originally Posted by hasenbonkers
I have a 98'. Seems like there are some pros to having a 98' verse the 2000+. What do you guys think?
IMO, there really is no one year that's "best". They are all extremely similar and the minor differences give each year some advantages and disadvantages over the others '98-'02.
On The Tree
Joined: Jan 2007
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From: Kemah TX
I have heard tat a 98 is harder to tune because of the PCM? Also would the 89 be better for boost because of the perimeter bolts on the heads?
I had a 98, but saddly it is sold, so I am just curious.
I had a 98, but saddly it is sold, so I am just curious.
Teching In
Joined: Apr 2007
Posts: 29
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From: Michigan
I know one of the major differences are the heads on the years. 98-00 F-body cars used specific LS1 heads, these heads incorporated an EGR valve and system. Where as the 01-02 models used LS6 heads, which didn’t have an EGR valve and system. I think that the cam shaft on the 01-02 models is a little bit bigger or more aggressive vs. the 98-00's. I also believe that the 01-02 use an air injection pump system where as the 98-00's do not. I'm not 100% on the cam and air injection pump facts, they could be vise versa but I can’t remember off the top of my head.
Originally Posted by lionelc-5
I have heard tat a 98 is harder to tune because of the PCM? Also would the 89 be better for boost because of the perimeter bolts on the heads?
I had a 98, but saddly it is sold, so I am just curious.
I had a 98, but saddly it is sold, so I am just curious.
The 98's did have perimeter valve covers, but the head bolt pattern is the same throughout the years.
Originally Posted by 1998SilverZ28
I know one of the major differences are the heads on the years. 98-00 F-body cars used specific LS1 heads, these heads incorporated an EGR valve and system. Where as the 01-02 models used LS6 heads, which didn’t have an EGR valve and system. I think that the cam shaft on the 01-02 models is a little bit bigger or more aggressive vs. the 98-00's. I also believe that the 01-02 use an air injection pump system where as the 98-00's do not. I'm not 100% on the cam and air injection pump facts, they could be vise versa but I can’t remember off the top of my head.
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Originally Posted by 1998SilverZ28
I know one of the major differences are the heads on the years. 98-00 F-body cars used specific LS1 heads, these heads incorporated an EGR valve and system. Where as the 01-02 models used LS6 heads, which didn’t have an EGR valve and system. I think that the cam shaft on the 01-02 models is a little bit bigger or more aggressive vs. the 98-00's. I also believe that the 01-02 use an air injection pump system where as the 98-00's do not. I'm not 100% on the cam and air injection pump facts, they could be vise versa but I can’t remember off the top of my head.
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Verdad Gallardo Joined: Nov 2001
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From: Schiller Park, ILL Member: #317
Originally Posted by 1998SilverZ28
I know one of the major differences are the heads on the years. 98-00 F-body cars used specific LS1 heads, these heads incorporated an EGR valve and system. Where as the 01-02 models used LS6 heads, which didn’t have an EGR valve and system. I think that the cam shaft on the 01-02 models is a little bit bigger or more aggressive vs. the 98-00's. I also believe that the 01-02 use an air injection pump system where as the 98-00's do not. I'm not 100% on the cam and air injection pump facts, they could be vise versa but I can’t remember off the top of my head.
'98 used 806 casting heads.
'99-'00 used 853 casting heads.
'01-'02 used 241 casting heads.
241 heads perform slightly better in stock form than 806 or 853s due to the casting method. Once the heads are reworked though, they are all the same performance wise.
None of them ever received the 243 casting (LS6) heads stock.
Cam was more aggressive in the '98-'00 years, and the '01-'02 cam was smaller.
LS6 intake was present on the '01-'02 cars only.
AIR system was present on all years '98-'02.
EGR was present on '98-'00 only.
Last edited by RPM WS6; May 30, 2007 at 09:46 AM.
