Yenko block on Ebay.

[ZiggyL78]

http://www.ebay.com/itm/1969-75-YENKO-ZL...3d1&vxp=mtr (http://www.ebay.com/itm/1969-75-YENKO-ZL-1-ENGINE-COPO-CAN-AM-BLOCK-ALUMINUM-427-NOVA-CAMARO-CHEVELLE-/121066488785?pt=Vintage_Car_Truck_Parts_Accessorie s&hash=item1c302003d1&vxp=mtr)

[resto4u]

The yenko letters on that block looks rough, ive seen better looking ones.

[Igosplut]

They['re saying 74 (and I'm sure Mark G will chime in here) But if I'm remembering correctly those versions were much later than that.

[olredalert]

----Beware of this vendor!!!........Bill S

[sYc]

Hum....the YENKO lettering looks odd.

[Fast67VelleN2O]

It almost looks like the Yenko letting was added at a later time. Were they all like this?

[EZ Nova]

Called the seller as I'm from Canada and there is NO SHIPPING to Canada. So on the phone and he said he would end early IF I meet his reserve of $8,000.00. Had no real info and didn't seem like he even wanted to sell.

FYI

[bergy]

That little set core that makes the "YENKO" lettering got placed incorrectly & had way too much core wash brushed on it. I spoke to David about this listing because the eBay ad says that it was cast @ Tonawanda. Of course, that's not correct.

[1969L78Nova]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: EZ Nova</div><div class="ubbcode-body">Called the seller as I'm from Canada and there is NO SHIPPING to Canada. So on the phone and he said he would end early IF I meet his reserve of $8,000.00. Had no real info and didn't seem like he even wanted to sell.

FYI </div></div>

Reserve of only $8,000 and a buy it now price of $29,500 !!!!

[92646]

I always thought Yenko bought the molds from GM and had the blocks cast at different companies in the 70s. I thought there were different configurations available depending on bore size and block height needs. I understood some of the blocks came with the Winters snowflake with the GM part number still on the block, some had the SYC crest, some had YENKO cast in the front and some had no markings at all.
This always confused me because I also heard the story how the GM engineer found the original molds for the ZL1 blocks in the trash at a GM plant and reworked them. Then GM reintroduced the current 053 aluminum big block from the updated molds.

[Carleen]

http://www.hotrod.com/featuredvehicles/97138_1969_chevrolet_camaro/photo_12.html#

http://www.callac.net/pandkautos/Yenko%20Camaro/DSCF00178.JPG

ebay block

http://i.ebayimg.com/t/1969-75-YENKO-ZL-1-ENGINE-COPO-CAN-AM-BLOCK-ALUMINUM-427-NOVA-CAMARO-CHEVELLE-/00/s/MTIwMFgxNjAw/z/RnYAAMXQZdFRHBn5/$T2eC16FHJHEE9ny2pyfSBRHBn4t7S!~~60_57.JPG

[92646]

The motor in my car.

[bergy]

Just for clarification - are you indicating that the block above is an original &quot;born with&quot; block? When I was at Tonawanda, we produced the cores for the ZL1 blocks in house and shipped them to the aluminum casting facility. It wasn't a difficult task to find a gravity pour, sand cast facility that could pour the castings. The problem was that only the biggest automotive foundries had the Osborne Machines that the water jacket cores were made on. Special sand magazines, ejector systems, unloading fixtures - these expensive equipment investments could not be justified for small production runs. Front &amp; rear housings, along with barrel and fuel pump cores were made in oil sand. So, we made the cores and shipped them out to the aluminum foundry. that &quot;YENKO&quot; feature was added by hand. maching was done on a single CNC machine at the Tonawanda Motor Plant. No broaching.

[92646]

Bruce, If you are asking about my car. It is a 69 Camaro Yenko clone built around the Yenko motor. Neat car that I bought like this but it is not real.

[markus37]

Yes, this ad is filled with misinformation. Yenko did not begin having blocks cast until 1976 and continued thru 1984. I am doing final editing on my new book &quot; The Yenko Era....Continued. Canonsburg and Beyond &quot; which will contain detailed history and records of &quot; Special Engines &quot; as Don referred to them. It will also cover history and dates of Yenko emblems. Should be ready soon ! Mark Gillespie

[resto4u]

It almost looks like they milled the water pump mounting face and took the O off in the process. Roger

[92646]

Mark, Do you know how many Yenko blocks were made and is there a break down of how many were tall deck and regular height blocks?

[markus37]

My records indicate 650-700 total blocks cast. Standard deck height, tall deck....also solid blocks for drag racers...

[92646]

Thanks Mark. Let us know when the book is out. I will be looking forward to reading it.