Has anyone had any luck with the 330hp/350cid crate motor? - Team Camaro Tech
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post #1 of 12 (permalink) Old Nov 10th, 14, 01:02 PM Thread Starter
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Has anyone had any luck with the 330hp/350cid crate motor?

I am considering dropping West Coast Engine's 330hp/350cid crate motor into my father's '71 Camaro, in lieu of rebuild. His Camaro came with this option. If it were my car, I'd go with the 383 stroker, but he's more of a mello dude, and not so keen on driving a super fast hot rod.

I would expect the 330hp option to be perfect for him. I see that other sellers/builder are rebuilding to the same specs. Are there any pros and cons I should know about, regarding West Coast, these engine specs, or any other conciderations/options?

http://www.westcoastengines.com/chev...30-horsepower/
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post #2 of 12 (permalink) Old Nov 10th, 14, 03:58 PM
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Re: Has anyone had any luck with the 330hp/350cid crate motor?

Consider one with a factory GM warranty rather than just luck.

https://sdparts.com/details/gm-perfo...parts/19210008

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post #3 of 12 (permalink) Old Nov 10th, 14, 04:21 PM
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Re: Has anyone had any luck with the 330hp/350cid crate motor?

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Originally Posted by zdld17 View Post
Consider one with a factory GM warranty rather than just luck.

https://sdparts.com/details/gm-perfo...parts/19210008
I installed 2 of those motors, and had good luck with them.

They also have Vortec heads that the other doesn't have.

Pretty much plug and play.

One thing I did learn is they will overheat big time unless you use a normally open heater core, or a bypass hose between the water pump and intake. This is because the bypass hole in the Vortec block isn't drilled all the way through.

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post #4 of 12 (permalink) Old Nov 10th, 14, 05:28 PM Thread Starter
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Re: Has anyone had any luck with the 330hp/350cid crate motor?

Bypass hose not drilled all the way though? Does this mean the heater will not work? Not sure what you're referring to.. do you have a picture?

Now, am wondering which is better. GM Performance shows less compression.... can run "87 octane" on GM performance, but not the other?

https://sdparts.com/details/gm-perfo...rts/19210007-0
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post #5 of 12 (permalink) Old Nov 10th, 14, 08:08 PM
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Re: Has anyone had any luck with the 330hp/350cid crate motor?

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Bypass hose not drilled all the way though? Does this mean the heater will not work? Not sure what you're referring to.. do you have a picture?
The heater will work fine, it would be acting as a bypass.

This pic shows the bypass hole below the water pump bolt holes that isn't drilled all the way through. On older blocks it is and it's the coolant bypass.

You could drill it or use a hose between the water pump and the intake, or just use a normal heater core to do the same thing.

This isn't the greatest photo, but you can see the 3rd hole where the pump mounts to the RH side of the block isn't drilled through.


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post #6 of 12 (permalink) Old Nov 10th, 14, 09:30 PM Thread Starter
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Re: Has anyone had any luck with the 330hp/350cid crate motor?

I always wondered what that hole was for.... is it not drilled on both your WCE motors? When u say bypass hose, I assume u mean from water pump to manifold, bypassing the heater core?

...Do the motors run strong, as advertised? that is, are u satisfied with the power output? What do you have them installed in? thx 4 th feedback.
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post #7 of 12 (permalink) Old Nov 10th, 14, 10:43 PM
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Re: Has anyone had any luck with the 330hp/350cid crate motor?

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Originally Posted by Classic68 View Post
I always wondered what that hole was for.... is it not drilled on both your WCE motors? When u say bypass hose, I assume u mean from water pump to manifold, bypassing the heater core?

...Do the motors run strong, as advertised? that is, are u satisfied with the power output? What do you have them installed in? thx 4 th feedback.

I'm talking about the GMPP 330 HP 350 HO motors not the WCE. I was posting about the motor that zdld17 mentioned in case you went that direction.

Yeah, both are not drilled. I used a heater core, everything's cool.

Yes, if you're in a climate where you don't need a heater, you will have to run a piece of heater hose from the pump to the intake. Without it, it will peg the gauge in minutes.

I installed one in a 72 Nova with a TH350 and 3:73 gears. It isn't real radical of course, just has a slightly noticeable idle and has decent all-around power. Through Flowmasters the sound is great. That's the best part.

The other was in a 76 El Camino with similar results. Pretty tame little motor with great drivability, but fun too. Very reliable.

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post #8 of 12 (permalink) Old Nov 11th, 14, 05:46 AM
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Re: Has anyone had any luck with the 330hp/350cid crate motor?

I have had one of these (GMPP 350/330H/O)in my 69 z28 with 4:10's and a 4 speed since 2002. I've put about 20k miles and around 200 drag strip passes on it. If you hook up the heater it will be fine it runs good from the factory. I eventually upgraded the cam to a lunati voodoo 268, using crane valve springs, headers and edelbrock performer rpm intake and electric fan its now at about 375hp. good luck
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post #9 of 12 (permalink) Old Nov 11th, 14, 11:54 AM Thread Starter
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Re: Has anyone had any luck with the 330hp/350cid crate motor?

will I have any problems using my stock intake with the vortec heads?
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post #10 of 12 (permalink) Old Nov 11th, 14, 12:19 PM
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Re: Has anyone had any luck with the 330hp/350cid crate motor?

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will I have any problems using my stock intake with the vortec heads?
The vortec port is taller and the intake bolt pattern is different so a vortec intake is required.

Stick with the performer , not the performer rpm unless you plan on upgrading the cam.

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post #11 of 12 (permalink) Old Nov 11th, 14, 01:27 PM Thread Starter
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Re: Has anyone had any luck with the 330hp/350cid crate motor?

Why should I go with the vortec heads in the 1st place?
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post #12 of 12 (permalink) Old Nov 11th, 14, 01:47 PM
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Re: Has anyone had any luck with the 330hp/350cid crate motor?

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Why should I go with the vortec heads in the 1st place?
If you have some time, this is a good article:

http://www.onedirt.com/tech-stories/...k-chevy-heads/

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