Zl-1 Prototype Block

[Art A.]

Re: Zl-1 Prototype Block

I'll have to pay Wayne Guinn the money owed for his research before I can see documentation as to why he thinks it may have been in a '66 L-88 test mule for a while....or his stating that it MAY have been in one of the 2 ZL-1 Camaro show cars.


John, I don't know what this is all about, but if you would like to elaborate please e-mail me directly.

BTW You will have to contact me in LATE April because CRS is setting in and I need all the that help I can muster.

[Clem Z.]

can am engine

here is what i have on the can am engine. more to follow

[Clem Z.]

can am engine

here are the rest. i have more but they are on legal size paper and my scanner will not copy that long

[Rex T.]

Re: Zl-1 Prototype Block

Thanks for the drawings Clem. I will jump on this train too. I too have one of these engines, a prototype casting (0-321270) with 4.440 bore liners. Block came from Smokey Yunick's shop in the mid 80s. I spoke with Jim Hall and a retired GM engineer and they both confirmed that my block was used in the Can Am racing series. I have been trying to learn more about it for over a year now, even contacting Wayne Guinn. My block has a Feb 1968 cast date. I have recently acquired an NOS set of magnesium valve covers with the oil drain back holes per Clem's drawings. Also have an NOS prototype cast alum front cover with the built in crank-driven oil pump and am looking for a magnesium oil pan.

I am interested in learning more about these rare engines. I could post pics of mine too.............if I knew how.

Thanks,
Rex

[Clem Z.]

Re: Zl-1 Prototype Block

if you have a scanner with your computer scan the pictures into "my pictures" and then add them to your posts thru "manage attachments" as that is how i do it.

[Dick W.]

Re: Zl-1 Prototype Block

When I get time, I will make you a photo of the valve covers. I have a pair hanging on the wall in my shop

[Rex T.]

Re: Zl-1 Prototype Block

John Davis and Ronald Rains....................you both have emails from me regarding the aluminum prototype blocks.

Thanks in advance for your help.

Rex

[Thomas H.]

Re: Zl-1 Prototype Block

MORE PHOTOS...Can Am...ZL-1...any ideas?

I'm curious, what was the purpose of the blue plugs in the lifter valley? I would think they provide access to the water jackets, but why from the lifter valley area?

Tom

[Joe L.]

Re: Zl-1 Prototype Block

I'm curious, what was the purpose of the blue plugs in the lifter valley? I would think they provide access to the water jackets, but why from the lifter valley area?

Tom

Tom-----


Usually, core plugs have more to do with manufacturing of a block than they do with any subsequent utility. I expect that's the case here.

[John D.]

Re: Zl-1 Prototype Block

Clem...not sure about the oil pump, as I just bought the bare block...although it does have a provision for a dry sump (side oiler). John

[Clem Z.]

Re: Zl-1 Prototype Block

Clem...not sure about the oil pump, as I just bought the bare block...although it does have a provision for a dry sump (side oiler). John

i have 2 drawing both the dry sump and wet sump oiling systems but they are on oversize paper and i can not scan them on my scanner

[Michael H.]

Re: Zl-1 Prototype Block

i have 2 drawing both the dry sump and wet sump oiling systems but they are on oversize paper and i can not scan them on my scanner

Clem... Somewhere I have info and prints on the front mounted oil pump. It was actually made from a Turbo 400 transmission front pump.
As I remember, that design was to be used through at least the middle of 1968 on the Can-Am engines.

[Tyler T.]

Re: Zl-1 Prototype Block

i have 2 drawing both the dry sump and wet sump oiling systems but they are on oversize paper and i can not scan them on my scanner

Just use a digital camera and take a picture. Just as good as a scaner.

Tyler

[Rex T.]

Re: Zl-1 Prototype Block

Hi Mike, I sent you an email.

Thanks,
Rex

[Michael H.]

Re: Zl-1 Prototype Block

Hi Mike, I sent you an email.

Thanks,
Rex

Got it. Thanks Rex..... I'll see what I can find.