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#1
11-03-2013, 05:16 PM
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Who here knows Ram Air Vs?
Some guy on the Mopar board keeps on calling SD 455 cars "tunnel ports." I told him they are "round ports" and TPs are RAVs. Anyone have pics side by side or offer any evidence on the differences? I lent out my McCarthy book so I cannot refer to that.
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#2
11-03-2013, 05:20 PM
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I have a intake on my engine but can post a pic of intake gaskets if that will help.Tom
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#3
11-03-2013, 05:26 PM
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Thanks, but it's not worth so much effort - just trivia.
This guy claims he and his bro have owned 40 Ponchos but calls the SD 455 "tunnel port." This is a first for me because I know the TP is a RAV. He seems to think that all round-port Ponchos are TPs. |
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#4
11-03-2013, 06:29 PM
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Show him this, and tell em a single 4 BBL, Normalky inhaled, D-Ports, maybe round ports, but not tunnel ports..
http://m.youtube.com/watch?v=RjqxPSjI7wg |
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#5
11-03-2013, 08:39 PM
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Here are intake port mold comparisons.
The large one is a V. The middle is a ported round port Edelbrock head to about the size of the 455SD intake. One is a D port stock intake.
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If you ain't first, you're last - REESE BOBBY |
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#6
11-03-2013, 09:03 PM
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Top is RA V exhaust ports
Middle is is Round Port (RA II, RA IV, SD-455) Bottom is standard D-port (most Pontiacs)  RA V intake ports (tunnel port) 
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http://www.pontiacpower.org/ |
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#7
11-04-2013, 02:50 AM
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Just saw the Mopar thread. Lots of errors in some of their posts, but I think it's calmed down. Someone stated the RAVI was available (must have been a typo, he meant RAIV), and he erroneously stated that round port heads were available on 1967 Pontiacs instead of 1968's.
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1959-1980 Pontiac Window Sticker Reproductions : http://www.pontiacwindowstickers.com My Bio: I am currently writing articles for POCI's Smoke Signals magazine and enjoy promoting and discussing the history of the Pontiac Motor Division. |
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#8
11-04-2013, 02:54 AM
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Well, the main part was to shove the doosh's nose in his pile. :-)
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#9
11-04-2013, 10:20 AM
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Who here knows RAV's......
I know RAV is tunnel port and super duty are not.
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1969 GTO 4spd. Antique Gold/black, gold int. 1969 GTO RAIII 4spd. Verdoro Green/black, black int. 1969 GTO 4spd. Crystal Turquoise, black int. 1970 GTO 4spd VOE Pepper Green, green int. 1967 LeMans 428 Auto. Blue, black int. |
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#10
11-04-2013, 04:01 PM
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Always wondered...
How are those pushrod tubes through the middle of the RAV intake held in place? Press fit, epoxy, or....?
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"Democracy is a beautiful thing, except for that part about letting just any old yokel vote." ~Jack Handey, Deep Thoughts |
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#11
11-04-2013, 04:03 PM
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Press fit.
(and possibly epoxy to make sure it was sealed tight?) 
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." Socrates |
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#12
11-04-2013, 06:22 PM
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I would guess press fit.
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1969 GTO 4spd. Antique Gold/black, gold int. 1969 GTO RAIII 4spd. Verdoro Green/black, black int. 1969 GTO 4spd. Crystal Turquoise, black int. 1970 GTO 4spd VOE Pepper Green, green int. 1967 LeMans 428 Auto. Blue, black int. |
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#13
11-04-2013, 08:34 PM
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HOW could someone mistake the RA V for the 455SD? They're apples and oranges.
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It takes considerable knowledge just to realize the extent of your own ignorance. Dr. Thomas Sowell |
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#14
11-04-2013, 09:58 PM
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Show him a picture of a ford tunnel port and ask him if its a RAV lol
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Happiness is just a turbocharger away! 960 HP @ 11 psi, 9.70 at 146. Iron heads, iron stock 2 bolt block , stock crank, 9 years haven't even changed a spark plug! selling turbos and turbo related parts since 2005! |
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#15
11-04-2013, 10:18 PM
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Quote:
They both have Windeler in common. |
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#16
11-04-2013, 11:50 PM
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The point was they are similar
__________________
Happiness is just a turbocharger away! 960 HP @ 11 psi, 9.70 at 146. Iron heads, iron stock 2 bolt block , stock crank, 9 years haven't even changed a spark plug! selling turbos and turbo related parts since 2005! |
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#17
11-07-2013, 08:23 AM
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Here is some V pics from BOP engineering website.
http://www.bopengineering.com/ram_v.shtml
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66 Gto 65 Gto |
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#18
12-17-2013, 11:05 PM
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RAM V
TELL THE GUY TO TRY AND PURCHASE PONTIAC RAM V STUFF AND GET BACK TO YOU IF HE HAS A 1/4 BRAIN HE SHOULD FIND OUT HOW SPECIAL THAT STUFF IS
   :attentio n
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#19
12-17-2013, 11:13 PM
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Fairly sure the term Tunnel Port originated from FE Ford's anyway. Didn't Pontiac model them for their RA V heads ?
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Two 1975 455 Grandvilles & '79 455 Trans Am 69 Camaro SS 396/375 (owned since 88) 22 Toyota Sequoia V8 23 Lexus LS500 awd 95 Ford F-super duty 4wd 7.3 p-stroke & countless Jeeps & off road vehicles. 
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#20
12-17-2013, 11:14 PM
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