different LS1 heads between the years..
06-03-2005, 09:29 PM
#1
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different LS1 heads between the years.. ok I hear alot of talk about different casting LS1 heads..
I got a 98.. what heads do I have?
how much of a difference is there really?
what are the names of all the castings and the differences?
CFM and HP wise?
I know the 98-99 have a larger cam.. so I guess it makes up for it because the heads flow a little less?
explain..
I got a 98.. what heads do I have?
how much of a difference is there really?
what are the names of all the castings and the differences?
CFM and HP wise?
I know the 98-99 have a larger cam.. so I guess it makes up for it because the heads flow a little less?
explain..
06-03-2005, 09:46 PM
#2
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well there have been a few different heads
the 98 heads are differnt from all the other years because the ahve perimeter valve cover bolts and all others have center bolts
then there are 99-00 heads and 01-02 heads not sure on all the casting numbers
the 98 heads also flow the worst stock out of the bunch and the 01-02 heads flow the best
i think there could be 10hp diff between the years because the 01-02s have a smaller cam then 98-00 and make 10 more hp
put some 241s on your car and an ls6 intake you could see like 10-15 hp im sure
the 98 heads are differnt from all the other years because the ahve perimeter valve cover bolts and all others have center bolts
then there are 99-00 heads and 01-02 heads not sure on all the casting numbers
the 98 heads also flow the worst stock out of the bunch and the 01-02 heads flow the best
i think there could be 10hp diff between the years because the 01-02s have a smaller cam then 98-00 and make 10 more hp
put some 241s on your car and an ls6 intake you could see like 10-15 hp im sure
06-03-2005, 09:57 PM
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They also had a low spot between 5 and 7, and 6 and 8. It caused the head gasket to give out earlly on the 98's. Definitely the worst year for the f body ls1. The computer is the worst of the bunch too.
06-03-2005, 10:38 PM
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I have two sets of #241's off 2002 C5's if you're interested. Less than 10K miles on them. $175/set plus shipping from 92020.
BTW...early heads (98)are #806, then they went to the center bolt #853, and the latest are the #241.
BTW...early heads (98)are #806, then they went to the center bolt #853, and the latest are the #241.
06-08-2005, 06:33 PM
#7
Originally Posted by CharlieLed
I have two sets of #241's off 2002 C5's if you're interested. Less than 10K miles on them. $175/set plus shipping from 92020.
BTW...early heads (98)are #806, then they went to the center bolt #853, and the latest are the #241.
BTW...early heads (98)are #806, then they went to the center bolt #853, and the latest are the #241.
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06-08-2005, 08:34 PM
#11
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Originally Posted by sandking
So,,,,,,,,,,,,,,,,,,,Is there any advantage?????
Originally Posted by jrp
die cast vs sand cast.
