LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Ported Intake, where to get done

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Old 03-22-2012, 03:55 PM
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Default Ported Intake, where to get done

I am looking to get my intake ported but was wondering where you guys get yours done at a decent price? I got a quote of $110.00 plus shipping from TPIS Tech.

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Old 03-22-2012, 04:06 PM
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What are they doing to it? AI will do a street/strip port polish for 350. LE also does intake manifolds.
Old 03-22-2012, 04:14 PM
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With your mods, that $350 would be better fit towards roller rockers and springs. I know you want it to match your 58mm throttle body, but to just do that you can just get a dremel and do it yourself. And to be honest, that $350 58mm throttle body would have better been spent on a cam. Ported intake and bigger than stock throttle bodys arnt needed (or will give you any benefit) if you are under 400rwhp. Your motor is only a strong as the weakest link, and the intake and throttle body are not them yet.
Old 03-22-2012, 04:16 PM
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Originally Posted by bufmatmuslepants
With your mods, that $350 would be better fit towards roller rockers and springs. I know you want it to match your 58mm throttle body, but to just do that you can just get a dremel and do it yourself. And to be honest, that $350 58mm throttle body would have better been spent on a cam. Ported intake and bigger than stock throttle bodys arnt needed (or will give you any benefit) if you are under 400rwhp. Your motor is only a strong as the weakest link, and the intake and throttle body are not them yet.
The stock intake manifold has been tested to flow fine up to 450hp.
Old 03-22-2012, 04:40 PM
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Stupid question but where did the $350 come from? I want to put the TB on it since I will be adding a cam to it soon. I am thinking about doing the cc503 cam and I want to port the intake now.
Old 03-22-2012, 04:41 PM
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Save your money. Buy a dremel if you don't have one, and just port the opening to 58mm. Don't worry about an expensive port/polish that won't help you at your modification level.

Take your time and do your research and use different car Forums as your free source of information. You have already spent some money on questionable mods, but doing your homework will save you more costly mistakes in the future.
Old 03-22-2012, 04:48 PM
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Originally Posted by Puck
Save your money. Buy a dremel if you don't have one, and just port the opening to 58mm. Don't worry about an expensive port/polish that won't help you at your modification level.

Take your time and do your research and use different car Forums as your free source of information. You have already spent some money on questionable mods, but doing your homework will save you more costly mistakes in the future.
ohh so I can just do it my self? i don't have to port anything on the bottom of the intake that goes into the block? another stupid question, do i have to take the intake off if I use the dremel? I know the shavings will get everywhere but if I can save time will this work without taking it off?
Old 03-22-2012, 04:56 PM
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Originally Posted by lildemars09
ohh so I can just do it my self? i don't have to port anything on the bottom of the intake that goes into the block? another stupid question, do i have to take the intake off if I use the dremel? I know the shavings will get everywhere but if I can save time will this work without taking it off?
There is a write up somewhere.

What I did was mask off the engine bay with plastic bags, then stuff lightly oiled rags inside the intake holes. I marked it using the 58mm gasket, then dremeled it all out. I then pulled out the rags, which caught and removed the shavings, and shop vac'd everything before removing the garbage bags. I should have a picture saved somewhere...

...Yep, here it is:
Old 03-22-2012, 05:18 PM
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Originally Posted by Puck
There is a write up somewhere.

What I did was mask off the engine bay with plastic bags, then stuff lightly oiled rags inside the intake holes. I marked it using the 58mm gasket, then dremeled it all out. I then pulled out the rags, which caught and removed the shavings, and shop vac'd everything before removing the garbage bags. I should have a picture saved somewhere...

...Yep, here it is:
That you I really appreciate it. Now its time to figure which cam I want.
Old 03-22-2012, 07:14 PM
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You also need to do springs with a cam swap and 1.6 rockers will benefit it a lot.

A .540/.545 lift (random numbers to show difference) at 1.5 will equal .576/.581 on 1.6.

.540 / 1.5 x 1.6 = new lift

so lift divided by rocker ratio times the new rocker ratio gives you the new lift.
Old 03-22-2012, 07:40 PM
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Originally Posted by F0x Slaughter
You also need to do springs with a cam swap and 1.6 rockers will benefit it a lot.

A .540/.545 lift (random numbers to show difference) at 1.5 will equal .576/.581 on 1.6.

.540 / 1.5 x 1.6 = new lift

so lift divided by rocker ratio times the new rocker ratio gives you the new lift.
Yea I would also have to get my heads machined or get new heads

How much does a package like this cost with everything?
Old 03-22-2012, 07:42 PM
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IMO it's not worth the risk to port the intake with it still on the engine. No matter what kind of precautions you can take some shavings will always make it through. But that's just me.
Old 03-22-2012, 07:42 PM
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Expect to pay around $2000 for a GOOD heads/cam package.
Old 03-22-2012, 07:45 PM
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You dont "have" to get your heads machined, or even touch them, besides swapping springs and rockers. Yes, a good set of ported heads will give you anywhere from 30-80 extra hp, but with a good 224ish/230ish cam you should be around 350 whp. check out http://elliottsportworks.com/ or http://www.advancedinduction.com/ for complete packages.
Old 03-22-2012, 08:05 PM
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^ You do not need to touch the heads at all for a cam swap.
Old 03-22-2012, 08:07 PM
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well with the cc503 wont I need to get diff heads
Old 03-22-2012, 08:08 PM
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Originally Posted by lildemars09
well with the cc503 wont I need to get diff heads
You haven't done much searching have you?

No, you don't.
Old 03-22-2012, 08:19 PM
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Originally Posted by RamAir95TA
You haven't done much searching have you?

No, you don't.
No to be honest, I am new with installing a cam and which one i want. I am trying to learn though
Old 03-22-2012, 08:20 PM
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My dad lives in by Davison.

CC503
AI 226/234
GM847

Can be ran on stock heads.
Old 03-22-2012, 08:22 PM
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Originally Posted by F0x Slaughter
My dad lives in by Davison.

CC503
AI 226/234
GM847

Can be ran on stock heads.
Any cam can be run on stock heads, but I would ill-advise against the 847 on stock heads.


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