Crate Motor? Identification...

I have an alleged 350 Crate motor in my Monte SS.

Non center bolt valve covers, timing gears instead of timing chain (most likely installed by previous owner)

And the following numbers stamped on block next to water pump;

1M0906

3VP

I haven't been able to get at the casting #'s at the bellhousing area, but I can distinctly see large initials "GM" and some casting clocks...

Anyone out there that can at least verify this is/was a 350 at some point? All I've found so far is the following excerpt from Chevy-Camaro.com;

"Target Master/Goodwrench crate motors will have a serial number something like "1M1234VB" or "1MO1234VP" or even "2M1234VB" or something along those lines. It is only a serial number. There is no way to decode the horsepower of the engine."

Thanks!

 

Did you try Google? The casting numbers are what you really want.

 

I have tried Google. That's how I discovered the info about Targetmaster/Goodwrench. I'll be diving in deeper this wennjekend to get the casting #

 

It can be a pain to see the numbers, but they're right behind the drivers side cylinder head on the top of the bellhousing flange. Get in there with a bright light and you can almost always see it. Might have to spray it with carb cleaner and scrub with a brush if the valve cover gaskets leaked.

 

Just called local Chevy dealer and they gave me a Phone # (866-453-4123) to GM that can help identify via that serial # on the front of the block by the waqter pump.

Here's what they could tell me:

Serial Number 1M0906 3VP
PN 1067353
350 cid
2pc rear main seal
Built NEW in Sep 2006
multi piece cork oil pan gasket,
190-260hp
8.5:1 comp,
4 bolt main

I'm happy with that. Good baseline to build a 383 I think.

I'm still going to look at what's on the bellhousing this weekend to further my curiosity.

Thanks for the input folks!

 

This is non 3rd gen related. It's a 350 crate motor in a Monte Carlo SS, so it doesn't fall under 3rd gen related in any way!