Is This A GenV Or GenVI Block???
 

Is this the markings of a GenVI block?
I am under the idea that it's GenV 1995.
The bearings are original with GM'95 stamped on them.
The serial number of the block also referrs to a GenV F348936

Re: Is This A GenV Or GenVI Block???
 

Looks like a Gen V. Gen IV's have a cast timing cover. Gen V's have a stamped steel one.

Re: Is This A GenV Or GenVI Block???
 

aHHHH GOOD............. :drink:
I purchased aluminum timing covers for GenV.
The OEM on this engine is stamped steel.
What threw me off was talking to Crane today in which the "Techie"
told me that I have a GenVI due to the trust plate.
The guy at Crane says that the V's need a cam button setup and I must have a VI.
Crane also recommended the 13532-16 lifter but will it work in a GenV.
Doesn't the VI require a different lifter than the V?
The thing that pisses me off the most is that the Technical Service person at Crane
had this attitude that HE KNEW EVERYTHING and my questions were beneath him.
All part of the fun of upgrading :cool:

Re: Is This A GenV Or GenVI Block???
 

You have a gen V or as GM puts it a M V as you can see from the first picture on the starboard side of the cam underneath the timing cover. Also, gen V blocks have 10 timing cover bolts as you do, the gen VI block has 6 which you do not. Reference is the "Rebuilding GenV/VI Big-Block Chevy Engines" book by Mike Mavrigian.

Tom

Re: Is This A GenV Or GenVI Block???
 

Are you talking about the locking plate on the front of the timing set with the locking tabs for the cam bolts????

If so, you still retain that. You have to use a timing chain set with a thrust bearing kit (Crane #13992-1). The thrust bearing is built into the timing gear on it. I used it last year when I put a roller cam in my Gen V. You also have to use a cam button and set the cam end play(.005-.008) so it doesn't walk in the block. I used a crane roller bearing button.

Re: Is This A GenV Or GenVI Block???
 

OR.......you could use a cam ground for a GenVI utilizing the cam retainer plate, along with a GenVI timing set!
Much better than a thrust bearing!!

Re: Is This A GenV Or GenVI Block???
 

I did not know that was possible. You learn new things on OSO all the time.

Re: Is This A GenV Or GenVI Block???
 

I talked to Cloyes today as my blocks have Hex Adjust timing set.
With the numbers off of the big sprocket and measuring the cam
the tech told me that I have a converted GenVI setup. :eureka: