Re: Yenko take out motors
 

The only thing I have heard on this is that Motion kept the number of the CE block in the car's paperwork. If we assume that Yenko did the same, then an original paperwork file might contain that "serial" number.

Re: Yenko take out motors
 

Mike;
Didn't Timken's Motion Camaro have an MP### stamping on the block of his dark green car? I thought I remember seeing a pic of it in the MCR article.

Re: Yenko take out motors
 

On the removed L78. I know Don said in his interview that he had trouble selling them but I would think that they would sell easily if advertised in the correct place. There were many people doing low cost home built big block conversions. Bill Thomas and others sold kits to convert a 55-57 Chevy and early Corvette to big block. People were dropping BBs into GTOs, 442s, early Chevelles, Novas etc.. You would think that a new L78 short block with TRW 11:1 pistons, forged crank, 4 bolt mains, big solid lifter cam, etc., would sell if the price was less then a new short block. This is another Yenko mystery.
On stamped engines, Some engine builders, head porters, crank grinders, used to stamp the parts they did in secret places so they would recognize them if they were returned. A Motion Phase III motor that had a lot of work done to it by customer request may have some special ID stamps on them.
On a side note, I have a 1969 CE block that is stamped "JIM" next to the CExxxx stamp. I like to find "JIM" and slap him in the head. just kidding.

Re: Yenko take out motors
 

On the three Dick Harrell prepared motors we have restored, Two are CE and one is the original MO 427. No further numbers were added. The competition 427 Yenko engine has two stampings on the pad. The initials of the builder and the trade name of the machine shop that Yenko used for special machine work...BKH

Re: Yenko take out motors
 

The Yenko Nova engine which I have has no specific designation other than GM's CE stamping and its sequence number.

You would think there would be at least a couple of documents to verify which engine went into a particular car.

You should have at least a parts invoice charged out against a dealers internal work order, very standard procedure.

If I recall ,GM did warranty their over the counter short blocks and a dealer would want to keep track of them.

It would be great to see documents surface to help verify and document the engines.

I did run accross someone (?) who had an NOS L72 short block with MP and its own sequence number in addition to the standard GM stampings. I didn't know what the stamping meant?

Re: Yenko take out motors
 

OK folks, Heres another twist on this. If I were to have bought one of thses cars new in 68-69 I would think that since I paid for the car itself along with the extra $$ to have the car converted, I would think that the engine that was removed should have also went to the person who bought the car new. Kind of like when I get repainr work done on my wifes car. I want the old parts back. Keeps the H#n#a dealer here honest. I also get to see just what was replaced

Re: Yenko take out motors
 

In those days, the salvage value of the engine taken out was already factored into the price of the conversion.

Re: Yenko take out motors
 

The response from Joel when asked if Motion added any MP numbers or designations to the CE blocks was "not normally". That confirms what I have observed on the blocks in my Motion cars.
Also, my recollection of "back in the day" was that we didn't care what number was on the block, and, if a motor needed replacing under warranty, so much the better. Nobody gave much thought about the original block adding any value, especially 30+ years down the road.

Re: Yenko take out motors
 

BKH, Were all three 427 Harrell engines out of 1969 Novas?

Billy

Re: Yenko take out motors
 

No Novas at all. One Harrell 69'427 COPO Camaro. One Harrell 69'SS 427 Camaro and one untouched Harrell 427 68' SS Chevelle. All the pads are stamped with only what GM did...BKH