427/425 Biscayne?

[Mr70]

I know you are talking about 1967,but I once owned a 1966 Impala with a factory 427/425.Only 1856 made.We found paper on it and brought it home.That car beat an LS-6 balls out!
But the next year they only offered the L36 427/385Hp in this carline.

[Stefano]

There was also a 1966 427/425 Biscayne in the Roselle area for a while. It was black with a blue interior and 4 speed.
It was also the real deal.

[SS427]

425/425's were offered from 1966-1969 in all of the big car line but the '67 is the only year that is very questionable.

And Rick, thanks for pointing out that these big cars had potential. I am very pleased with the power of my cars but am seldom invited anywhere. [img]/ubbthreads/images/icons/blush.gif[/img]

[micky69396]

The big cars are definately underrated. If I get my car to hook up it runs pretty well. At the local track it has gone 13.65 @ 102 is my best pass ever in it. Its just tuff with a stick car. The red 66 is a pretty neat car, I havent see it in a long time. I also remember a 66 427 wagon with a 4 gear out there too, along with a 409 64 wagon. Micky

[ORIGLS6]

Rick,

I agree about the potential of the big cars with the 425's. They were huge in size but didn't weigh all that much more than the Chevelle. Plus the 427's wrapped quicker than the long stroke '54's. There's a Red '65 427 here in town and a Marina Blue '66 425 HP a few miles East of here and they're still with their original owners. The '66 was a regular at the local strip through the early '70's and made believers out of a lot of us.

Rick N.
Maybe you don't get the invitations for fear of being humiliated by those heavy breathing behemoths! They're welcome down here ANYTIME.

[68l30]

Here's one for ya! Vintage shot in action.......

Steve

[Chevy454]

I know we've covered this before, but the topic of the "generous" exhaust manifolds of the '65 and '66 BIG cars came up recently on the Pure Stock board, and it got me to checking. What I found (and Rick had probably already told me this!) was that the '65 L-78 big cars shared exhaust manifolds with the '65 Corvettes, whereas the '66 L-72 big cars shared exhaust manifolds with the '66-69 Corvettes!

Here is a picture of a set of '66 L-72 big car &'66-'69 Corvette manifolds. And, here is a picture of what the standard fare 385hp manifolds off a '68 big car. What a DIFFERENCE!

As for the L-72, I gotta tell ya, it may be sour grapes since I sold my LS-6 to pick up a Yenko Chevelle, but I like the 427 better for racing. To me, it seems like the perfect blend: the bore of the 454, with the stroke of the 396.

[toner]

Our parts man at work used to work at Economy chevrolet in Rock Island Il. A couple of the guys he ran with bought 1966 427 powered big cars. Rosco Davidson had a fully loaded silver Impala with a 4 speed that he ran at Cordova drag strip. "Fat Jack" Reynolds had an aztek bronze Biscayne, rubber floor mat, radio delete, 4 speed with 4.88 gears. Madsen says he took it home and pulled the motor and had it balanced and blue printed. While he was waiting on that installed fiberglass fenders, hood, deck lid and bumpers. Says he never ran it at the strip just on the 1ways in Rock Island. Madsen has a Rock Island Argus paper with an article on the street racing in Rock Island

toner

[Chevy454]

Along the same line of thought...what exhaust manifolds did the '68 & '69 L-72 big cars get? The same as the Corvettes, or the same crappy ones as the 385hp?

[JoeC]

Rob here are some nice cast iron manifolds for you -
1963 427 Mystery Motor