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Copo & Dealer Factory & Dealer Performance

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  #1  
Old Aug 16th, 10, 9:28 PM
DuNLoP DuNLoP is offline
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Default 1970 chevelle SS 427??

Hi everyone,

I would like to know if if it's possible a 70 chevelle ss from the factory? Give me some details please. Thanks
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  #2  
Old Aug 16th, 10, 10:19 PM
Keith Tedford Keith Tedford is offline
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Default Re: 1970 chevelle SS 427??

For the '70 production run there was the L34 and L78 to start with. Once the LS6 came along L78 production ended. '69 was the last year for the 427.
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  #3  
Old Aug 17th, 10, 12:58 PM
DaleM DaleM is offline
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Default Re: 1970 chevelle SS 427??

And the 427 that was sold in the 1969 Chevelle was a COPO special order in a Malibu, not an SS-optioned Chevelle. The 427 engine was never offered as a standard factory option in any Chevelle.
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  #4  
Old Aug 17th, 10, 2:26 PM
DuNLoP DuNLoP is offline
Frederic
 
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Default Re: 1970 chevelle SS 427??

This is what I thought, but was it possible to order a 70 chevelle SS with a 427 engine like a L88, a ZL1 or any other 427? A kind of special order?
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  #5  
Old Aug 17th, 10, 2:47 PM
DaleM DaleM is offline
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Default Re: 1970 chevelle SS 427??

Again, no. For the reason's I stated as well as Keith. There was no 427 Chevrolet engine made after 1969. In 1970 the GM ban on engine sizes was lifted in a-body cars and the 454 replaced the 427 in ALL Chevrolet lines.
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  #6  
Old Aug 17th, 10, 3:03 PM
Keith Tedford Keith Tedford is offline
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Default Re: 1970 chevelle SS 427??

When we bought our COPO Chevelle, it was just a matter of going to a dealer, doing the COPO order and you got your car. The trick was knowing about it. Any dealer could do it but most didn't seem to be aware of it or weren't interested. We found out about the COPO deal through a guy who worked in the Oshawa main office at the time. His brother and two of us ended up getting our COPO cars through Beare Motors. Sort of like being in the right place at the right time. The COPO system had been used for fleet orders and such with special equipment packages, mostly trucks and the like so a fleet order of COPO cars wasn't all that big of a deal for GM. There is a COPO catalogue that shows all the oddball truck and other package stuff. The COPO cars aren't even mentioned in it. Just a little info from my experience with the COPO cars.
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  #7  
Old Aug 19th, 10, 3:03 PM
beachbum29 beachbum29 is offline
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Default Re: 1970 chevelle SS 427??

to my knowledge from what i've read in old magazines, I only know of Motion doing camaro's, and maybe vega's? and Yenko doing the Yenko Duece. The motion camaro came in stages up to I believe a stage III with a funky paint job, L88 hood, and built 454, the vega's i'm not sure about, and the Yenko Duece for 70 was the LT1 solid cammed small block. All big block cars etc all got the 396/402, or 454, no more 427's.. Wasn't somebody doing big block vette's in 70 too? I'm only going by literature i've read, and some old hot rod mag's that I have from that era including a Motion stage III big block camaro..
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  #8  
Old Aug 19th, 10, 5:28 PM
joe58 joe58 is offline
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Default Re: 1970 chevelle SS 427??

No factory built 427 cars in 1970 but Motion Performance did build some.

They installed a L88 427 in a 1973 Chevelle and put 427 engines in other cars as per customer request.

In the early 70's, Chevy sold 427 engines at good prices to clear out the inventory so was less expensive to install the 427 vs build a 454.

1973 427 L88 Motion Phase III Chevelle

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  #9  
Old Aug 20th, 10, 4:53 PM
copo-2 copo-2 is offline
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Default Re: 1970 chevelle SS 427??

Quote:
Originally Posted by DuNLoP View Post
Hi everyone,

I would like to know if if it's possible a 70 chevelle ss from the factory? Give me some details please. Thanks
As has already been explained, 1970 was the year the 454 was introduced canceling the 396 & 427 production in RPO Chevelles. However, there were still a handful of dealers who would build a new car to your specs. First,in the 1972 edition of Motion Performances catalog, is a Phase lll Chevelle with options listed. In the same catalog is a list of interesting engines that were sold through them, of which, the 427 is still available to anyone who might desire? I feel that 1970 would have had the 427 available with different options through Motion Performance and some other Super Car Dealers, also? It was pretty crazy in those days, being able to get most anything you desired, including a ready made race car?





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  #10  
Old Aug 20th, 10, 5:31 PM
Xplantdad Xplantdad is offline
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Default Re: 1970 chevelle SS 427??

Hi Ray! Thanks for the great information. I hope that life is treating you well...Are you going to MCACN in November?
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  #11  
Old Aug 20th, 10, 5:50 PM
DaleM DaleM is offline
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Default Re: 1970 chevelle SS 427??

Quote:
Originally Posted by copo-2 View Post
As has already been explained, 1970 was the year the 454 was introduced canceling the 396 & 427 production in RPO Chevelles.
The 396 didn't get canceled in 1970 as such but it did morph into two different 402 engines. The base SS396 L34 version with 350hp for 1970 only and the LS3 lower performance version that lived on until at least 1972. GM had so much invested in the SS396 mistique that they still called the L34 402 a 396 for marketing purposes.
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  #12  
Old Aug 21st, 10, 9:05 AM
joe58 joe58 is offline
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Default Re: 1970 chevelle SS 427??

Early 1970's Chevy engines can be confusing

I guess Chevy didn't want to use the name "SS402" so they still called the 402 cu in SS Chevelles the "SS396" but in a non SS you can get a 402 big block called a 'Turbo-Jet 400" and you can also get a small block 400 they called the "Turbo-Fire 400"


Also in the early 1970s, Chevy Hi Po parts dept. sold the aluminum 427 ZL1 engine and a 430 Can Am engine that looked like the ZL1 engine but used a different big bore internal block casting.

Many people still confuse these engines today.
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  #13  
Old Aug 21st, 10, 1:50 PM
69bu 69bu is offline
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Default Re: 1970 chevelle SS 427??

Quote:
Originally Posted by joe58 View Post
No factory built 427 cars in 1970 but Motion Performance did build some.

They installed a L88 427 in a 1973 Chevelle and put 427 engines in other cars as per customer request.

In the early 70's, Chevy sold 427 engines at good prices to clear out the inventory so was less expensive to install the 427 vs build a 454.

1973 427 L88 Motion Phase III Chevelle

That car belongs in the side pipe thread. I kinda like it.
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  #14  
Old Aug 21st, 10, 2:55 PM
DaleM DaleM is offline
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Default Re: 1970 chevelle SS 427??

Quote:
Originally Posted by joe58 View Post
and you can also get a small block 400 they called the "Turbo-Fire 400"
The RPO LF6 Turbo-Fire 400 (small block with 2-bbl) wasn't available in the Chevelle but was in the Monte Carlo (for 1970 only) and passenger car line in 70 and later.

A lot of shop manuals back in the day often distinguished them as 400-4bbl for the big block and 400-2bbl for the small block causing confusion.
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* ChevelleStuff - Decoding info for 64-72
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  #15  
Old Aug 23rd, 10, 4:44 PM
copo-2 copo-2 is offline
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Default Re: 1970 chevelle SS 427??

Dale,

You are correct, was thinking in terms of the L-78 & L-89 production.
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