Re: 70 Z28 Engine Block Casting Numbers
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.
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Marlin
70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride)
69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride)
67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride)
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