Edelbrock heads? - Page 5 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 11-10-2003, 05:46 PM   #41
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theres always customizing your current heads?
Does anyone know what the wall thickness is on the intake and exhaust ports on our heads? What'* the most we can take off on a CNC P&P?
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Old 11-11-2003, 05:05 PM   #42
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Quote:
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Originally Posted by TrueWildMan
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Originally Posted by joe
theres always customizing your current heads?
Does anyone know what the wall thickness is on the intake and exhaust ports on our heads? What'* the most we can take off on a CNC P&P?
The reason why I dont think anybody is replying is because nobody knows the answer.
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Old 11-11-2003, 05:09 PM   #43
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Quote:
Originally Posted by Roadrash187
Quote:
Originally Posted by TrueWildMan
Quote:
Originally Posted by TrueWildMan
Quote:
Originally Posted by joe
theres always customizing your current heads?
Does anyone know what the wall thickness is on the intake and exhaust ports on our heads? What'* the most we can take off on a CNC P&P?
The reason why I dont think anybody is replying is because nobody knows the answer.


Yep, I think that would be a safe assumation of the situation....
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Old 11-11-2003, 07:22 PM   #44
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couldnt u contact gm to find out
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Old 11-11-2003, 11:41 PM   #45
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The only real diff between the L27 and the L36 is the fuel system. We use TPI. An upgraded fuel delivery system would probably weild us L27 users the greatest bonus, and give us some more high end HP.

Comp Cams sells cams for the series 1 3800. I was looking at one a awhile ago. 26 hp increase for $400, that isnt Bad.

DP is a great store, i just wish duty and exchange didnt kill me here in Canada.

Ty, how much does an average upper and lower intake porting add in hp/tq?
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Old 11-12-2003, 12:27 AM   #46
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Quote:
Originally Posted by TrueWildMan
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Originally Posted by Roadrash187
Quote:
Originally Posted by TrueWildMan
Quote:
Originally Posted by TrueWildMan
Quote:
Originally Posted by joe
theres always customizing your current heads?
Does anyone know what the wall thickness is on the intake and exhaust ports on our heads? What'* the most we can take off on a CNC P&P?
The reason why I dont think anybody is replying is because nobody knows the answer.


Yep, I think that would be a safe assumation of the situation....
Not really sure exactly how much but you can definately port match your heads which is really more than you think. If you haven't already check out the web page in my sig and check out the exhaust ports on mine. I can't picture wanting any bigger. Because it is force fed and I wanted to keep velocity I didn't port the intake much but there is still enough room to satisfy your porting wants.
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Old 11-12-2003, 12:31 AM   #47
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Quote:
Originally Posted by TrueWildMan
Quote:
Originally Posted by joe
theres always customizing your current heads?
Does anyone know what the wall thickness is on the intake and exhaust ports on our heads? What'* the most we can take off on a CNC P&P?

Enlarge it to the size of the gaskets and profile the top of each runner well. Smooth the turns.
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Old 11-12-2003, 12:41 AM   #48
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Default Performance Intake Manifold! Custom or Port/Polish

I actually found a shop who was willing to do either a custom port and polish job on my existing intake manifold , or, using it as a template, build me a custom unit. I haven't sent it to him yet, but I will be doing so this week. He works in a race shop in florida, here'* the link:
http://www.autoshopracingengines.com/speed_shop.htm

I have a 1991 Buick Riviera, in cherry condition. The engine is a brand new factory crate Series 1 Supercharged. I will most likely be sending him my entire head for a performance rebuild. Who knows, since it'* in the crate I may just send him the whole thing and have it Dynotuned too! (pipedream) Wouldn't that be something?

I cant say as I will be back this way again as I am always on the go trying to find a bigger and better performance part for the engine the world forgot. By all means though, if you have found anything really cool, or you want info on my progress please email me [email protected]. I look forward to trading success/failure stories with my fellow series I owners.
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Old 11-12-2003, 01:41 AM   #49
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I have a few tricks up my sleeve for Canadian buyers. No tax no Gst.

shhhh

Ty
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Old 11-13-2003, 10:38 AM   #50
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Quote:
Originally Posted by DrJay
Not really sure exactly how much but you can definately port match your heads which is really more than you think. If you haven't already check out the web page in my sig and check out the exhaust ports on mine. I can't picture wanting any bigger. Because it is force fed and I wanted to keep velocity I didn't port the intake much but there is still enough room to satisfy your porting wants.
Kewl, that'* what I was wondering. I have run into a situation in the past where port matching the gaskets would make the walls to thin, and I didn't wanna run into that again... What I did instead was port match the opening, and not the entire port (smoothing it instead, garage job), making it a trumpet shape (so-to-speak) increasing air velocity...
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