jmos4

Hi,

I just got a doner 350 for my 65 olds, broken valve spring locked up the 330, anyhow picked up a 1970 4v 350, the guy had some documentation for the engine, a window sticker Rallye 350 optioned, and a cowl tag "--"color code, lansing and a date code of 01A, just curious on how you could verify a cowl tag to a vin or window sticker?

Regards,

anthonyP

Do not see many Rallye 350 window stickers. Is it possible to add an image of it to your post?

jensenracing77

To the best of my knowledge you can't tie the VIN to the cowl tag even with the broadcast card. It really don't matter if the engine was out of a Rallye 350 or not. All 70 4 bbl 350 engines were the same other than the W-31. If it has a 4 bbl and 6 heads then that is as good as you are going to get without pulling it apart to check what pistons it has.

anthonyP

Would a 4-speed engine from a Rallye be different?

jensenracing77

I would need to double check but I believe it is also the same other than the drilled crank

joe_padavano

The only engine offered in the Rallye 350 was the L74 350 4bbl motor, exactly the same one as installed in thousands of Cutlass Supremes and other Cutlii. There's nothing special about it. Same cam, same valve sizes, same heads, etc, etc.

fasteddy

Depending on when it was built it could be a QV or a QB motor. The QB motor would have a different carb and cam. If you have the 7040253 carb you likely have the QB

https://classicoldsmobile.com/forums...50-carb-s.html


Pat

jmos4

Window sticker

droldsmorland

If the Rallye window sticker vin matches the engine vin than there ya go. Cool but nothing special or worth any more than any other 70, 350...unless the car still exists and someone is looking for it to do a numbers restoration?

The major difference between the stick and auto engines would be in the crank tail. The stick crank would be drilled for a pilot bushing.

All Rallyes were built between O1A-ish and O5D. All were Lansing built and must have the M in the vin. The vin ranges were reportedly ~239000 to 327000ish.

The 1970 Engine Assembly Manual calls for
identical parts used throughout these two engines
with the following exceptions:

Cylinder Head Assembly:
QV = 405584 (used on all other 350 exc W-31)
QB = 408187 (unique to QB)
Note that these Head assemblies were "loaded,"
including valves, springs, etc. The only
difference between these two was probably
the springs???

Carburetor:
QV = 7040250 (used on all other 4 bbl 350 exc W-31)
QB = 7040253 (unique to QB among 350s, but also
used on TU 455 (manual-trans 442s))

Camshaft:
QV = 400084 (used on all other 350 exc W-31)
QB = 393859 (unique to QB)

Spark Plugs:
QV = R45S
QB = R44S (unique to QB among 350s)


The 1982 Olds Parts Illustrated Catalog
lists only three differences between the
QV and QB carbs:

Primary Jets:
QV (7040250) = 7031970 "70" (.070")
QB (7040253) = 7031969 "69" (.069")

Primary Rods:
QV (7040250) = 7040701 "52C" (.052" tip)
QB (7040253) = 7040699 "48C" (.048" tip)

Secondary Rods:
QV (7040250) = 7033658 "AT" (.0667" tip)
QB (7040253) = 7033655 "AU" (.0527" tip)



Note that the QB carb is jetted significantly
richer on both the primaries and secondaries.

Regarding the cam for the QB-code engine:
The new 393859 cam is nearly identical to
the 400165 (automatic 442) cam in terms of duration and
overlap. They were also ground on the same
blank. The only significant difference is that the
automatic 442 cam is essentially installed 3 degrees
advanced, while the manual 350 cam is installed 4 degrees
retarded. Makes sense! The 442 is cam'ed more for
low-rpm torque; the 350 more for high-rpm.

I cant put my hands on the distributors as far as the curve goes, I think they were all the same?

droldsmorland

You posted the window sticker while I was composing...If 240769 is on the block pad then there is the proof

jmos4

Hi,

Where is the block pad, I know my 65 is on the head, but the heads on this 350 are blank.

I looked at the block but didn't see any stampings, but it is a little dirty still.

Regards,

droldsmorland

The Vin pad is below #1 cylinder on the block. I'm mobile right now so if nobody responds with the illustrations I can once home. Or Google it for a visual.

don71

anthonyP

Thanks for posting the image of the Rallye 350 window sticker. Surprised to see the anti-spin on window sticker, as most automatic Rallye's had open rear axles. Wonder if the dealership or a retail customer ordered this Rallye. Though I have yet to hear of a Rallye that was ordered by a retail customer.

shiftbyear

I'm kinda wondering why the Rally 350 option was priced separately if it required the wing and hood as part of the package. It seems like the w45 would be one package on the option sheet with the other items included at no charge. But I guess that's the way they did things.

anthonyP

If I recall correctly, the total package price shown on the retail order sheet included the cost of the option plus any required itens. On the wholesale order sheet and window sticker, the package price was much lower since it listed the required items separately. The package price was only for those items specific to the option, such as stripes, emblems, or engine upgrade.

anthonyP

Trim cowl tag from 4-speed Rallye 350.

scottrod

Lots of love over the years. I tried hard to keep it as close to original as possible.