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L98 Cylnder Heads????
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Joined: Jun 2007
Posts: 57
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From: Austin Texas
L98 Cylnder Heads????
I have a 48k L98 that I would like to add a cam & head combo to still keeping the TPI. What cyl. head has produce d good results? I am looking at 195cc Procomp aluminum heads I found on ebay. What do you guy think?
Thanks Waveman22
Thanks Waveman22
Burning Brakes
Joined: Aug 2007
Posts: 915
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From: salinas ca
Waveman, dont waste your money on those pos. What year is your l98? because the l98 does has aluminum heads 58cc. You can take your heads to a machine shop and have an angle job done. You should do your intake, cam, and exhaust before thinking about new heads.
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Joined: Sep 2002
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From: OBAMA IS HITLER
heads and cam aside, why would you build a thoroughbred backbone only to choke it off at the ***** with a very sh!tty intake?
go miniram or superram with the intake along with the heads/cam combo of your choice.......and absolutely dump that suck-azz tpi and never look back -- it's a rev-killer and a performance chokehold.
go miniram or superram with the intake along with the heads/cam combo of your choice.......and absolutely dump that suck-azz tpi and never look back -- it's a rev-killer and a performance chokehold.
Last edited by Red Tornado; Sep 27, 2007 at 12:41 PM.
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Joined: Sep 2001
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
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What is the year of your car? Fill out your profile with year and transmission.
No point whatsoever in putting 195cc heads on that engine when you're keeping the TPI intake.
No point whatsoever in putting 195cc heads on that engine when you're keeping the TPI intake.
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Joined: Oct 2004
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
I just spent the last month on such a question.
First question, what year L98?
The older L98s have lower compression ratios. The older ones yet have cast iron heads. What year do you have?
There's a number of factors of heads.
1. Flow
2. CC or intake runners
3. CC combustion chambers
4. Cam
5. Size of valves
I like the advice above, pick the cam and intake, then adjust the head accordingly.
After weeks of research I went with Brodix heads with a 180CC runner and I'm having them shaved to a 58CC combustion chamber. Many people go with "too much" head. 220CC runners, and 67CC chambers is more than you'll need for a 350. By going with too much head the car will run crappy and be SLOWER, not faster. Make sure everything is matched.
So, select an intake base, runners, plenum then the cam and heads will follow.
My .02 after driving everyone here nuts for over a month.
First question, what year L98?
The older L98s have lower compression ratios. The older ones yet have cast iron heads. What year do you have?
There's a number of factors of heads.
1. Flow
2. CC or intake runners
3. CC combustion chambers
4. Cam
5. Size of valves
I like the advice above, pick the cam and intake, then adjust the head accordingly.
After weeks of research I went with Brodix heads with a 180CC runner and I'm having them shaved to a 58CC combustion chamber. Many people go with "too much" head. 220CC runners, and 67CC chambers is more than you'll need for a 350. By going with too much head the car will run crappy and be SLOWER, not faster. Make sure everything is matched.
So, select an intake base, runners, plenum then the cam and heads will follow.
My .02 after driving everyone here nuts for over a month.
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
