C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Cylinder heads!

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Old Jun 13, 2015 | 09:05 PM
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Default Cylinder heads!

The cylinder heads on my car are cracked and i need to buy replacements. I was thinking about going with the stock ones but i can't find any anywhere!!! So I might try performance heads! What do you guys recommend? What are some good brands for performance heads? Could I use my stock intake with them?
Thanks
Dave C

Last edited by Drautotech; Jun 13, 2015 at 09:11 PM.
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Old Jun 13, 2015 | 10:35 PM
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http://www.summitracing.com/parts/edl-60879
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Old Jun 13, 2015 | 10:36 PM
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or your heads...
http://www.summitracing.com/parts/nal-12556463
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Old Jun 14, 2015 | 06:58 AM
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What year motor you wrenching on? I'm pulling my 90k mile aluminum 128 heads of my stock 86 convertible pretty soon to do a build if your interested in them shoot me a pm
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Old Jun 14, 2015 | 10:24 AM
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Give us the year of your car....important information.

I would go with a performance head with at least 180 cc for a stock engine. Would not go to 190's unless you have a good cam.

Heads are also a matter of how much you want to spend. Personal preference is AFR.....but your going to spend $1500 or so on heads of this quality.
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Old Jun 14, 2015 | 12:19 PM
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he has a 90 model motor which has 113 heads. (58cc chambers)
the two I listed are replacement heads with no drama.
one factory and one a little better without altering his compression ratio. Afr offers a small chamber head but it is special.

Last edited by project C4; Jun 14, 2015 at 12:25 PM.
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Old Jun 14, 2015 | 03:55 PM
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I'd spend the bit extra and get some summit/jegs house brand alum or other base model alum heads like dart SHP. Even if the new head chamber is a little bigger it'll outflow those stockers and more than make up for it. Nothing china!


edit: ARF is the best and I herd edelbrock don't have as many casting problems these days.

Last edited by BOOT77; Jun 14, 2015 at 03:56 PM. Reason: edit
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Old Jun 14, 2015 | 04:21 PM
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i took a chance on some heads from Skip White on E-bay. They work ok, $750. Not sure if you could benefit from better heads if you don't have exhaust, headers, cam and intake/plenum upgrades plus a tune though. Then your looking at gears possibly and a stall converter if an automatic.

You can also find replacements all over the place, as I already mentioned in the for sale section, I have a set......they're easy to find.

All depends on your goals and budget.......
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