3969854 block question

DSYenko · #1 05-08-2006, 08:16 AM

It's a 4 bolt block and they were only made the first year so there would have never been a 70-71-72 cast into it,only a 9 or 69,,,,i think!

**Rixls6** · #2 05-08-2006, 02:25 PM

The picture of the casting date of D-7-7, there looks like the remainders of a '0' after the last '7'. I think someone ground off the '0' in the 70 date code.
Rick

**Hotrodpaul** · #3 05-08-2006, 03:20 PM

Question I have is why would someone do that?

Paul

DSYenko · #4 05-08-2006, 04:56 PM

It's fun to imagine things about something when we never seen anyting like it before and doubt it but i really think it's legit.I have the engine in my shop and i think it's factory.One of the things people are focusing on is the casting date,the date is one of if not the earliest seen for an 854 block .While the date is odd the hyphen is odd also and it's not like someone put one there after the block was cast, that was there when the block was born. I asked your opinions and im getting them and appreciate them but as of right now im taking this block at face value ,a 68 Chevelle 375/396.This thing was in a race car or in a race shop corner before most people ever cared about numbers matching. It also came from Texas in case you live there and are missing the original engine in your 68 Chevelle.It came from Texas 3 years ago and was in a Fiat drag car,before that.Thanks guys

nuch_ss396 · #5 05-08-2006, 09:27 PM

[ QUOTE ]
It's fun to imagine things about something when we never seen anyting like it before and doubt it but i really think it's legit.......

[/ QUOTE ]

No '854 block was made in 1967. It doesn't get any clearer
than that. We are talking about two years before the '854
block went into production. It was merely a .030 over bore
to the 396 anyway, so why do a early prototype for that.

While on that topic ( the bore ), check to see if it is a
402 as it should be. It it measures standard bore, you got
something here. But I sincerely doubt it.

I hope he doesn't think we ganged-up on him or anything.

Steve

DSYenko · #6 05-09-2006, 04:01 AM

There are still heads on it so i have not idea what the bore is at this time,i'll keep digging!

DSYenko · #7 05-09-2006, 06:22 AM

I dont think anyone is ganging up on me but i do think back a few years ago when i drug home a pretty rough 81 Camaro out of a towing yard in California.That was when i located this site and had several nay sayers as it had a early build date ect ect.Come to find out it wasnt just a Yenko car it was one of the 2 or 3 prototype of the 18 Yenko Turbo Z cars.I learned long ago with this car stuff never say never.Id like an expert opinion on that front pad and broach marks and the stampings. Thanks again guys

DSYenko · #8 05-08-2006, 05:00 PM

Back to ricks454 question if they ground off a 0 they sure did a wicked nice job textureizing(sp?)the block back to bare cast!?

**Rick H** · #9 05-08-2006, 05:43 PM

[ QUOTE ]
The picture of the casting date of D-7-7, there looks like the remainders of a '0' after the last '7'. I think someone ground off the '0' in the 70 date code.
Rick

[/ QUOTE ]

I agree that it has been messed with. You can still see the dash were someone took off the screw head.

Rick H.

Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars.