Projects 426 HEMI block guru

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Is it a cross bolted 4-bolt main block????

 

i'll give you a hunnderd bucks for it. Double your money.

 

Obviously nothing to do within HAMB discussion guidelines.

 

Sure it is... neither is a Chevy 350 and we don't hear anyboby whining about it.....

 

Could sure use more pictures of it..... thanks!....

 

Start a conversation with member racer-x he know a whole bunch about hemi blocks.

 

We need a side pic. There are very tell tale signs If it's a hemi. The engine mounts and head bolt pattern are the easy tip off. If the block was a 64 or 65 it would have been a race hemi. Hemis were not available in a street car until 66. The 67 package cars were really not all that special. Unlike their predecessors. Other than the manifold they were stock hemis. The serial number showing it was in a 23 car is what is special. Congrats on a great find.

 

Good luck with that. Getting the rest of the pieces will be the expensive part.

 

Casting date of 10-3-66. Regular production Hemi.

 

If I remember correctly HC is for High Compression. So, not a street hemi based off that. Casting number shows it to be a 1967 motor.

No VIN on the block since Chrysler didn't start that till '68. Check because the hemi blocks coulld have covered more than the current production year and it could have gone in the SS '68 A bodies too.

Cliff Ramsdell

 

That casting date is into the 1967 production run which would have started sometime in the 3 week of August with castings being started as early as July.

Cliff Ramsdell

 

That's wedge stuff. Hemis only came in one compression ratio.

 

starting with just a bare block may get expensive, but thats jealous me saying that !

 

I could be wrong but I thought the H is for hemi. The C is for 1966, and the numbers under the HC 426 on the pad are...assembly numbers Jan 2nd 3rd block assembled. don't know about the MP. Yet lol. Lippy

 

If your going to build it and you live in Buena Park, Ca. the first thing I would do is bring it to Strip Clean on 1st street just east of Euclid and bring the cast iron back to "new". I know it's clean but the process removes only rust. I do it to every GMC I build. Good luck on a great find... What else did the shop have?

 

I know my street hemi was 10.25 to 1. I thought the race motors were more, like 12.0 to 1 or so. It’s been a while, since the early 80’s

Cliff Ramsdell

 

I also learned there were no 1967 cast hemi blocks, so 1966 cast engines were used up into the 1968 model year. Lippy

 

You did great it is a hemi block. It's easily identified by the eight extra head bolt holes on the deck going into the valley. It has the flat surface area with three studs for mounting. It has the cross bolted mains. It should also have a 1/2 inch oil pick up. If the block turns out to be junk I could use a mock up block. There is usually a reason a block is not in a car just laying around. But you never know. I hope it's good.

 

that block would be right at home in the car I'm building....it's the right date, and everything

 

RacerX, I have the plastic Hemi mock up block. Right now it is used as a coffee table in the man cave(with chrome valve covers and a Enderle stack injection mounted to it)

 

Does it look anything like this???

 

I’m no Mopar expert, but did work on a lot of them,but never a Hemi. It appears to me that the engine mount bosses are not drilled, that could be a clue. Also looks like one boss is broken. Bones

 

I noticed that also..... Maybe a front mounting plate should cure that problem....

 

I should have been more clear. The race hemi in 64 and 65 had higher compression. Anything after that was lower compression but never referee to as such.

 

the hemi block has different mounts...the flat pad below the mounting ears, is the hemi mount. three studs in a triangular pattern.

 

I believe your friend is right that is a superstock coronet/belvedere block. Lets see the drivers side of the block.

 

I think the race hemi's were 12.5 to 1 comp. Lippy

 

MP = Maximum Performance according to:

http://www.qualityengineeredcomponents.com/?page_id=1134

 

Do the top row of head bolt holes have threads?