Can you help identify this Aluminum 427 engine?

[Redfox0099]

The intake does not match the ZL-1, we know that. It is some high flow intake with rectangular ports.

[Born30YrsLate]

what is the casting number on the backside of the intake? You do have a factory intake there...the ZL1 intake will have numbers ending in 198 and is a rectangular port...the number you posted a picture of for the intake is the firing order.

[MultiMopars]

Soooooo, who is going to omment on the 074 heads on this engine? Acording to the people in the know on the L89 Nova thread they were totally wrong for THAT engine. This should be a 12.5:1 engine with these 074 heads?????

[Born30YrsLate]

074 heads are the only factory correct ZL1 heads...there is nothing wrong with those heads on this engine...yes, that is the correct advertised compression...
ZL1 = 427 cu in and L89 = 396 cu in....same stroke different bore, thus different pistons...

Nathan...do you know how long that car has had the "stinger" hood on it?...

[Redfox0099]

My Dad got that hood in 1968 if I remember correctly, just a fiberglass hood.

Here are some pics.











I will have him look if they are easy to spot.




BTW for those saying the heads don't work on the motor they have been on the motor for almost 40 years.

[Stefano]

There will be a casting date on the back side of heads.

[Redfox0099]

Just to explain the reason for the questions is my Dad is trying to get his Camaro ready for a car show and I am helping him make the poster for it and wanted to be correct in identifying the motor.

[RichSchmidt]

HAHA poor washing machines,they the brunt of the mess when they live in a garage.I sell lots of stuff on ebay and almost all of it is photo'ed on or in front of the washing machine.I have seen many other adds with the same location.Most common is the orange or blue stains on the machine from soap spills.I guess its the only flat surface in most garages that doesnt have crap piled on it because the wife wont let it

BTW,thats a seriously nice piece you have there.Try and find the original home before you reinstall it.it could be worth a fourtune.

[iluv69s]

the 052 cast number means it was of the original design as opposed to a later GM block..there were many alum blocks made beside the original 'original' 69 that came in the cars...A few clues to look for. Does the block have screw-in freeze plugs..or press-in? Is there a small stamped 2 or digit number on the rear of the block in the center above the bell housing mounting flange..same number would be stamped on the main caps...a date code and small cast number may be located down on the side of the block near the motor mount area. Some of the known original ZL-1 blocks have the VIN stamped on the front pad and others have the VIN stamped down along side the oil filter. If it is one of the real blocks, you may have a small fortune there. Regardless, it is an awesome street motor!!! A few more pics may help. Good Luck.