Quick cyl head ?
07-21-2006, 10:35 PM
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Quick cyl head ? A friend of mine bought a used ls6 motor and already has a set a patriot ls6 heads and wants to sell me the stock ls6 heads for pretty cheap. what would happen if i just added some 1.8 roller rockers and bolted the heads up to my 98 ls1? stock cam and stock internals. would it even be worth pulling the heads? would i need a tune? and lastly how bad would my mpg suffer? thanks guys.
Last edited by NxLS1496; 07-22-2006 at 09:59 AM.
07-21-2006, 11:45 PM
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Well the LS6 heads flow quite a bit better then yours and the 1.8 rockers will be like adding lift to your cam so even though your stock cam while larger then the 01-02 cams is still smaller then the LS6 camshaft so with the rockers and an LS6 intake you should be about the same HP as a stock LS6 plus any bolt ons you have. I would would expect around 40-50 hp for just the heads and rockers.
07-22-2006, 09:21 AM
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Originally Posted by HottLS1Z
Well the LS6 heads flow quite a bit better then yours and the 1.8 rockers will be like adding lift to your cam so even though your stock cam while larger then the 01-02 cams is still smaller then the LS6 camshaft so with the rockers and an LS6 intake you should be about the same HP as a stock LS6 plus any bolt ons you have. I would would expect around 40-50 hp for just the heads and rockers.
07-22-2006, 09:27 AM
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you probably won't "need" a tune, but it would help. However you will need new springs with the 1.8 rockers, unless the LS6 heads also have the LS6 springs. I would not use a stock LS1 spring with 1.8 rockers even on a stock cam, but that is just my opinion.
07-22-2006, 09:57 AM
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if i did get the heads they would probably be fully assembled, including ls6 springs 
. thanks for all the help, also how hard would it be to pull the heads?
. thanks for all the help, also how hard would it be to pull the heads?