Ericjay210

Did the 1970 cutlass Supreme (Automatic) come stock with a 350 5.7?

tru-blue 442

I think they could be orded with either
a 350 or 455.
I have a 70 Supreme that came with
a 455, W-Z's and dual exhaust.

jaunty75

Yes, the standard engine in the '70 Supreme was a 310 hp 350 V-8. Optional engines were a lower power (250 hp) version of the 350 plus a couple of versions of the 455.

Ericjay210

Oh I see,Thanks for the replies.

Fun71

This was the 4bbl version.

And this was the 2bbl version.

joe_padavano

No. They came with a 350 cubic-by-God-inches engine. No one ever used the term "5.7" in 1970.

nsnarsk65cutlass

They use the metric ie 5.7l for the younger folks.

sammy

Any pics of your 70? ......options?power windows etc.
Adam, would your 70 be an x code car?

Ted

GAOldsman

Ted X code pertains to '72 W30. In '70 it could've been ordered with the 320 HP L33 code 455 or the 365 HP W32 code 455 as far as big blocks for the Supreme went.

tru-blue 442

Hi Ted.
Not an X code. Came with a 2 bbl.
The engine on my profile. It had the
E heads though. A/C, drums and pwr.steering.
It's a beater that I picked up in Denver City TX.
I dropped an old 69 F-1 block C head 455 that
I had in the shop into it to blast around in.

oldsman72

It's likely a 350ci (aka 5.7), and if it is an automatic, you likely have a 350 turbo trans. That's based on production #'s and probability. Is any part of the engine painted gold by chance? Anything blue?

If you want to be sure what engine you have, pop the hood and from the front of the car, look above the water pump. There will be a series of 6 #'s (I'll guess you'll see 395558). If you see other #'s, post them up. Folks here will help you find out what size engine it is.

droptopron

Are you sure the engine was original to the car? I thought a 455 was only available in a Supreme in an SX.

jaunty75

According to Setting the Pace, the 455 was available in any 1970 Cutlass Supreme (as well as the Cutlass S and the base Cutlass).

sammy

Adam, your beater needs to be in my shop! 69/70 combo is my favorite
thanks for posting pics....

Ted

sammy

A x code car in 72 could be a 4 door, plain Jane family sedan?

GAOldsman

No just the Cutlass Supreme Convertible, Cutlass Sports Coupes and Cutlass hardtop coupes

tru-blue 442

Ted, send a driver down to pick
it up...Make sure he has a cashiers
check in his pocket, ha ha.

I don't mean to highjack this thread,
but I AM going to downsize...let me
know what I need to throw in the trunk, lol.

Wish me luck guys, I am going to see the
man in the morning. Hopefully, there will
be a 66 442 VERT in my garage soon...

Just to finish up, Austin TX Craigs L.
under auto parts, owner...
All the Oldsmobile parts from Marble
Falls TX are mine. They have to go...

My yougest son, is going to do some
inventory and catalog a bunch more
stuff that is not on the CL.

If this goes through, I am going to sell
the # match 69 442 project with ALL the
resto stuff I have purchased over the last
6 or 7 friggin yrs. A LOT..

The Supreme is on CL as well, 3500 obo.
I will be out of pocket for a few days, but
you guys can send pm's if you like.
Fingers crossed, Adam.

sammy

When I went to pick up parts at Oldspackrat(Scott)) in Indianapolis. I am sure he showed me a x code car that was a 4 door....plain Jane beige with all the goodies....could be wrong...hopefully hopefully Scott will chime in...

Good luck Adam...start another thread so we can keep up

I just sold an original 70CS with tha 350 2bbl...beautiful car to drive..and of course, I wish now I had kept it

Adam nobody who I know seems to have a passport!

Ted

GAOldsman

Yeah I know that car Ted is was a U code (455 & TH400)

sammy

Scot,thanks for the correction

GAOldsman

You are quite welcome my friend