That doesn't look right

« **on:** March 21, 2016, 03:31:28 AM »

So I finished scraping off the old gaskets getting ready to set on my new intake manifold when I realize there's a square port that is exposed that was covered by the old manifold what am I missing here?

The new manifold is a victor Jr stamped 2904.. The old one was an edelbrock performer 2-0 stamped 2161
Motor is a 454 gen IV..
I also looked at the markings on the heads and curious to see what anyone knows about them "3964290" any help is appreciated and thank you in advance

Sent from the Waterwheel crew

« **Reply #1 on:** March 21, 2016, 07:01:29 AM »

You wanted the 2902 for rectangle port heads, the 2904 is for oval port heads. Maybe not. Hmm.

I have a 454 gen IV block with the 2902.

Interesting problem now that I've looked at the 2161, this is for the oval port heads and the pic does look like oval port.

The head part number tells me 396, mine end in 990 which are the square port.

Someone with more knowledge will tell us both what's going on here.

« **Reply #2 on:** March 21, 2016, 08:07:30 AM »

It's fine. Run it. That outer port goes nowhere.

« **Reply #3 on:** March 21, 2016, 08:07:34 AM »

Some one port those heads at some point ?

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« **Reply #4 on:** March 21, 2016, 08:10:54 AM »

Quote from: eastcoastboys on March 21, 2016, 08:07:34 AM

Some one port those heads at some point ?

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those are oval ports

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« **Reply #5 on:** March 21, 2016, 08:26:40 AM »

That's pretty normal guys.

That's just a cooling ring for when the exhaust crossover is used. It is blind and goes nowhere. Use the little metal block off plates and bolt it down.

« **Reply #6 on:** March 21, 2016, 08:38:39 AM »

Yep what GT says exactly

« **Reply #7 on:** March 21, 2016, 02:02:11 PM »

Quote from: J2 on March 21, 2016, 07:01:29 AM

You wanted the 2902 for rectangle port heads, the 2904 is for oval port heads. Maybe not. Hmm.

I have a 454 gen IV block with the 2902.

Interesting problem now that I've looked at the 2161, this is for the oval port heads and the pic does look like oval port.

The head part number tells me 396, mine end in 990 which are the square port.

Someone with more knowledge will tell us both what's going on here.

These are oval port heads and the intake I bought is oval port as well.. I kinda worded it wrong but just that exhaust crossover is square lol. Anyways thank you again for taking the time. Much appreciated,

I'm still curious to know if these heads are any good performance wise or not

Sent from the Waterwheel crew

« **Reply #8 on:** March 21, 2016, 02:07:04 PM »

Quote from: GT Jets on March 21, 2016, 08:26:40 AM

That's pretty normal guys.

That's just a cooling ring for when the exhaust crossover is used. It is blind and goes nowhere. Use the little metal block off plates and bolt it down.

Thank you for the help GT I appreciate it.

Sent from the Waterwheel crew

« **Reply #9 on:** March 31, 2016, 08:19:01 AM »

Quote from: goin_up_river771 on March 21, 2016, 02:02:11 PM

These are oval port heads and the intake I bought is oval port as well.. I kinda worded it wrong but just that exhaust crossover is square lol. Anyways thank you again for taking the time. Much appreciated,

I'm still curious to know if these heads are any good performance wise or not

69-70 Oval Ports, closed chamber, 101cc chamber. (this from the Mortec site). The smaller chamber should help with compression. Not a terrible head. Could benefit with bigger valves.

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goin_up_river771

That doesn't look right

J2

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GT Jets

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eastcoastboys

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WhyNot76

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GT Jets

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rush1

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goin_up_river771

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goin_up_river771

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1sleek1

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