70 Z28 Engine Block Casting Numbers - Page 2

**YENKO DEUCE REGISTRY** · #11 02-11-2008, 05:49 PM

Don't smack it with a hammer just yet - try a magnet!

**Mr70** · #12 02-11-2008, 06:33 PM

You don't have to smack it,just tap it firmly.
I actually cracked off an epoxied one that a magnet did stick to.
Turns out the forger added fine metal shavings to the epoxy.

**YENKO DEUCE REGISTRY** · #13 02-11-2008, 09:18 PM

Was probably easier to find the correct block vs. going through all the 'casting' work!

COPO 70 RS/Z28 · #14 02-11-2008, 09:26 PM

As I recall the 3970010 casting # was used for a large variety of applications and years. Someone will need to check this but I think that casting # applied to 2 and 4 bolt mains and ranged from the late 60's thru the late 70's.

**SS427** · #15 02-11-2008, 10:03 PM

Rick,
Not the best photo but here is what mine looks like.

**YENKO DEUCE REGISTRY** · #16 02-11-2008, 10:07 PM

The 010 block has many different applications in both 2 & 4 bolt configurations, and are fairly plentiful. I think the block started in '69, might be '68 - but I'm pretty sure it's '69+. The casting numbers are generally pretty straight, not sure I've ever seen them crooked like that.

COPO 70 RS/Z28 · #17 02-11-2008, 10:38 PM

Rick thanks for posting, Im glad to know someone has a cleaner block than mine!

**owners2** · #18 02-12-2008, 04:48 AM

Just took some pics.Don't know were to put the camera card in this old laptop i'm using.Will send them as soon as i get to work in the morning.This is the motor for my 01E 71 Z28 that i just re-freshed.

Rick Cell · #19 02-12-2008, 04:04 PM

As Randy requested a picture of the car.

**wundercluck** · #20 02-12-2008, 05:12 PM

WOW!!! Beautiful car!! Go to ebay #190198071217. The casting numbers look the same as in the original post.
Don