Thread: ID these heads? They don't look Vortec! + other questions

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I am trying to ID this engine/heads. Here is a shot of the heads without the intake


And here is a shot of the bottom of the intake (Edelbrock Performer RPM 7101)


I was told by the previous owner that this was the 330hp crate engine from Summit - with Vortec heads. These don't look like Vortec heads to me and the intake is not for Vortec heads. I just want to make sure that I am seeing things right since I am new to working on SBC's. Any help?

One other question - why are there 6 water outlets leading to the intake, but 2 of them are blocked off by the intake? I can see coolant inside the port on the head that is blocked by the intake, but it doesn't make sense to me to block it. What's the reason?

Yet another question - there is rust above the water ports from the leak. I can put a new gasket on properly, but should I be doing anything else about the rust?

Originally Posted by Saxman

I am trying to ID this engine/heads. Here is a shot of the heads without the intake


And here is a shot of the bottom of the intake (Edelbrock Performer RPM 7101)


I was told by the previous owner that this was the 330hp crate engine from Summit - with Vortec heads. These don't look like Vortec heads to me and the intake is not for Vortec heads. I just want to make sure that I am seeing things right since I am new to working on SBC's. Any help?

One other question - why are there 6 water outlets leading to the intake, but 2 of them are blocked off by the intake? I can see coolant inside the port on the head that is blocked by the intake, but it doesn't make sense to me to block it. What's the reason?

Yet another question - there is rust above the water ports from the leak. I can put a new gasket on properly, but should I be doing anything else about the rust?

They are not Vortec heads.
What are the head casting numbers?

Eric is right, of course. For the next time, here is how you can spot a Vortec. The intake is held to the heads with 8 bolts on a Vortec, yours has 12= prevortec. Also, the valve covers are held on by 4 bolts around the perimeter of the cover. Vortecs have 4 bolts down the center of the cover, in a line.

You might want to go back to that previous owner and "mention" his little bit of "misinformation" that he gave you. Makes you wonder what else he lied about.


Don

I can't really see the water pump is it a reverse direction pump??

I can't see the casting number so far. Is it on the end of the heads?

It is an electric water pump and I believe it is reversed since it flows to the left side of the engine.

I'll post casting numbers if I can find out where they are.

Thanks!

Originally Posted by Itoldyouso

Eric is right, of course. For the next time, here is how you can spot a Vortec. The intake is held to the heads with 8 bolts on a Vortec, yours has 12= prevortec. Also, the valve covers are held on by 4 bolts around the perimeter of the cover. Vortecs have 4 bolts down the center of the cover, in a line.

You might want to go back to that previous owner and "mention" his little bit of "misinformation" that he gave you. Makes you wonder what else he lied about.

Don

Exactly!

I just wanted to be sure I was right about the heads. GEEZ!

Hey Eric: Someone posted on here a week or so ago that the only true Vortec heads have this sawtooth pattern cast into the front of the heads, where the old Fuelie heads had the double humps. What's with that? My heads are Vortec, and they don't have that, nor do any of the ones I looked at in our parts dept at work.

And if I can ask (not trying to hijack, but it is along the same lines), my heads are these, and I pulled them up on Mortec. Can you tell me anything about them and how good they are. Not looking for out and out HP, just usable heads.


10239906...96-up...350.........."Vortec 5700", "L31", 64cc chamber,
170cc intake port, 1.94"/1.5" valves

Thanks, Don

462624 is on the inside of the head along with "Hencho Mexico". I wonder which crate engine these heads came with? The block says casting#10066036...

(edited to correct the head #'s - oops!)

Here is your engine.

10066036...350...........2 or 4...Target Master/Goodwrench crate motor, 2-piece rear
seal, "Hecho en Mexico"

Don

Can't find that head number.

Originally Posted by Itoldyouso

Hey Eric: Someone posted on here a week or so ago that the only true Vortec heads have this sawtooth pattern cast into the front of the heads, where the old Fuelie heads had the double humps. What's with that? My heads are Vortec, and they don't have that, nor do any of the ones I looked at in our parts dept at work.

And if I can ask (not trying to hijack, but it is along the same lines), my heads are these, and I pulled them up on Mortec. Can you tell me anything about them and how good they are. Not looking for out and out HP, just usable heads.


10239906...96-up...350.........."Vortec 5700", "L31", 64cc chamber,
170cc intake port, 1.94"/1.5" valves

Thanks, Don

These heads will work fine for hp levels up to say 450.
If you want more hp I would look at a bigger runner size.
Because of the valve size and port size these heads would work great for a mild street car.
The should make good mid-range power.
Because of the intake to exhaust ratio I would look at cam's that favor the exhaust side by at least an extra 4-6 degree's.
An example of this would be a Crane part #113931.
Spec's are .440 in.,.454 ex,duration at .050 would be 210 in,216 ex,.
I am not saying this would work for what you are doing but it is a good example.
Always favor the exhaust with these heads.

Thank you Sir.

Looks like Saxman bought a Goodwrench engine instead of a Summit 330, huh?

Don't you just hate liars. The guy who sold him this is lucky this isn't Iran. He would be walking around without a tongue.

Don

Originally Posted by Itoldyouso

Thank you Sir.

Looks like Saxman bought a Goodwrench engine instead of a Summit 330, huh?

Don't you just hate liars. The guy who sold him this is lucky this isn't Iran. He would be walking around without a tongue.

Don

Not a problem.Calling me sir is about like installing an elevator in an out-house.L.O.L

Don

I found this "universal" Goodwrench longblock - http://ratfactor.com/vehicle/k10/) -, but the head #'s are not the same. Are the cast #'s I pulled right or can I find the # somewhere other than between the valves?

Originally Posted by Saxman

I found this "universal" Goodwrench longblock - http://ratfactor.com/vehicle/k10/) -, but the head #'s are not the same. Are the cast #'s I pulled right or can I find the # somewhere other than between the valves?

The "casting numbers" are raised numbers that appear in a flat area next to the rocker arm studs