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Old 01-31-2018, 07:58 AM   #11
ss3011
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Default Re: 1966 Ply Belvedere

Quote:
Originally Posted by Grey Ghost View Post
Is that specific intake manifold required or can the "street" version be legally substituted?
Looking at the NHRA specs , I don't think they recognize the "Vanke" intake or the "cheater" carbs .

Last edited by ss3011; 01-31-2018 at 03:31 PM. Reason: spelling
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Old 01-31-2018, 09:15 AM   #12
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Default Re: 1966 Ply Belvedere

we had one about 25 yrs ago...it had fiberglass hood scoop that i always thought wasnt factory ...maybe it was...
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Old 01-31-2018, 10:26 AM   #13
X-TECH MAN
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Thumbs up Re: 1966 Ply Belvedere

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Originally Posted by Dwight Southerland View Post
The Chrysler contingency has the ability to get NHRA to see history through their eyes.
Uh........You nailed it Dwight !
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Old 01-31-2018, 02:34 PM   #14
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Default Re: 1966 Ply Belvedere

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Originally Posted by Billy Nees View Post
Yep, 3 speeds in PG equipped Drag Packs and Edelbrock intakes on 273s and 340s and Edelbrock heads on everything!!!
still waiting for that ch4b for the 440
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Old 01-31-2018, 08:48 PM   #15
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Default Re: 1966 Ply Belvedere

MY understanding is the Production Unmodified Street Hemi Manifold is ONLY accepted
intake in stock.

I race one in stock when they were new....Then the big carbs and modified manifold were
a Super Stock ONLY deal!

BTW: NO Alum Heads/Manifolds on our 340 Mopar Stockers and the still run competitively!
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Last edited by GTX JOHN; 02-03-2018 at 03:26 AM.
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Old 01-31-2018, 10:18 PM   #16
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Default Re: 1966 Ply Belvedere

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Originally Posted by X-TECH MAN View Post
Uh........You nailed it Dwight !
NHRA has to throw us a life preserver every once in awhile.
I guess stock could end up like pro stock, then everyone would have a GM car, so easy to tech and get anything you want, no bitching, moaning or crying.
Mike
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Old 02-01-2018, 01:36 PM   #17
Grey Ghost
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Default Re: 1966 Ply Belvedere

Blueprint specs list 2780543 as the manifold for the street hemi for 1966-1971 with no alternative. The only reference to the RO23 manifold 2780544 is in the highlited note in the classification guide.
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Old 02-01-2018, 01:47 PM   #18
Chevy55
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Default Re: 1966 Ply Belvedere

I'm not selling this, just saying............LOL

66 426 hemi plymouth - $75000 (poland ny)

ALL ORIGNAL, 4 SPEED ALL #S MATCH DRIVE ANYWHERE. FACTORY KIT WHEELS. SEECOND OWNER.
https://albany.craigslist.org/cto/d/...479731677.html


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Old 02-01-2018, 07:17 PM   #19
Chevy55
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Default Re: 1966 Ply Belvedere

Do you believe it, here's another one..................

1966 426 HEMI Plymouth Belvedere II - $74995

https://daytona.craigslist.org/cto/d...462669314.html

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Old 02-02-2018, 09:17 AM   #20
Steve Stasko
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Default Re: 1966 Ply Belvedere

1966 Hemi Plymouths are not rare. 1966 is the highest production model year for all 426 Hemi cars from 1966-71.

As far as the scoop thing...

There are some internal memos floating around that describe a proposed package for the 1966 model year. It never got any further than that though. There was never any paperwork or information released to the public. The '67 car package is similar to the '66 package, but a little more tamed down. I seem to recall that the '66 package was to include a '65 style engine, I may be wrong on that though.

As far as the hood scoop, they were all steel on the '67 cars, and even the '65 cars for that matter. The '65 and '67 scoops are different. As for fiberglass scoops, it's either a repop or a '65 A/FX scoop, which would be noticeably different than the standard '67 scoop.

I do not agree with scoops on the '66 cars, and I'm a Mopar guy. The scoop does not offer much for a performance advantage in the way of "fresh" air, but in S/S I guess it would help with a taller intake if one would go that route.

Side note...I don't believe the '67 package cars were officially announced until very late '66, if not early '67. From my research, Sox and Landy were running standard hood cars at the AHRA Winters, and NHRA Winters in '67. I have determined that RO/WO production did not start until late February or early March of '67, and lasted for 6-8 weeks in small batches. While the cars did have sequential Shipping Order numbers, the VIN number spread between the earliest and latest cars I have recorded is quite large dispelling the "two batch" theory that has been purported by many.
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