Port and Polishing - 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 05-31-2004, 08:04 PM   #1
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Default Port and Polishing

I have been doing some research about port and polishing heads and intakes via the web, and most sites have been saying that expect to gain around 25 hp (and around 10whp) from this mod and expect to pay around 400$ for a business to do it. I even found a company that makes/sells these units/products for the 3800 series, and will send it to you for 350$. Has anyone ported and polished their car here and felt any kind of difference?
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Old 05-31-2004, 08:07 PM   #2
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I think Mark Wimmer was the only one, but Jason is doing that to his car from that donor L27, I might as well to my headers if I cant find aftermarket units.
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Old 05-31-2004, 08:09 PM   #3
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Default Re: Port and Polishing

Quote:
Originally Posted by Twister97
I even found a company that makes/sells these units/products for the 3800 series, and will send it to you for 350$.
Who is this? One of our supporting vendors or someone not mentioned here before?
I know I can get my lower intake, exhaust mani'*, and heads P&P'ed with port matching and bench-flow tested for that price here in Sauk Centre.
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Old 05-31-2004, 08:10 PM   #4
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Someone not mentioned here before, at lest I dont think so. I will try to find them again on the search engine.
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Old 05-31-2004, 08:17 PM   #5
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Here it is, looks like there are two options for the series 2 motors for 150 and 400$. near the bottom of the page in neon green.


http://www.streetdesignauto.com/SDAporting.htm
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Old 05-31-2004, 08:23 PM   #6
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Quote:
(ALL V6'* add $120 to base price).
so...289 and 515
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Old 05-31-2004, 08:26 PM   #7
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yeppers. dont ask my why though
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Old 05-31-2004, 10:40 PM   #8
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A GP guy here in MN will do yours for 150, He coats them as well i believe. he'* on MNBC too. I can hook you up if you want.
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Old 05-31-2004, 11:47 PM   #9
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Quote:
Originally Posted by BonneMeMN
A GP guy here in MN will do yours for 150, He coats them as well i believe. he'* on MNBC too. I can hook you up if you want.
I will keep that in mind! I am not going to be doing this (or any major upgrade) until late July, but if the prices around here are way too high, then I will take you up on that offer. I am trying to weigh the benefits from Rockers to Port and Polishing since they both seem to produce around the same amount of horsepower. Still dont know about torque though. P&P seems like it can also extend the life of your engine, which is a major plus!
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Old 06-01-2004, 12:51 AM   #10
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Note: those are for exhaust manifolds only (sholda said that)
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