63 F85 Cutlass

Hey guys, just bought my first Big Block, don't really know what I'm gonna do with it, but I always thought if I was gonna do a Big Block I wanted a 425, and one became available somewhat local for the right price.

First off, its a 389244D block, which to the best of what I can tell just ID's it as a 66-67 425, and the heads are C heads. It's a red block with what seems to be the standard style oil pan, so I'm pretty sure it's not a toro motor unless a fair bit has been changed. Other than that I'm having a hard time figuring out the origins/specs, I did find a previous post with helpful tips and photos on finding marking locations, but I'm having trouble finding the breakdown of what they mean, other than the frond of block and the head castings I listed. the stamp on the front of the pass side head is either P or D followed by 194139. On the back of the block right of the distributor is a stamped number 5 and under that is an 18 I'm uncertain if these numbers are good enough for preliminary ID or if I need more. I wasn't planning on tearing it down right away, but it sounds like I may need to to get dimensions for some of the info like which lifter style it has, and what dish the pistons are.

Also I'm in CT and wondering if anyone knows of any shops good with Olds engines in the region for the heads and maybe more of the machine work. This isn't a project with a timeline, so I was thinking when I finish up a few other tasks for a few friends I would try to get the block, heads, and rotating assembly taken care of.

Any info, advice, ideas, or resourced greatly appreciated.

-Ryan

Boldsmobile

Pettit Racing Engines in New Milford,CT.

Tell Mike the professeur sent you.

63 F85 Cutlass

Thanks Pete, I'll have to check them out

Octania

'67 425
check the service manual at wildaboutcars.com for the P###### engine application.
Probably the std issue 2-bbl low [9.0] compression. A great choice for today.

Further details will probably require dismantling and measuring.

If it has the drill spot on the rib next to the oil fill, it's a 39' block

4040_66-To-425_CN6-1.jpg


If not:

12147_66-88_23bnoDS.jpg

it may be either 45 or 39. Gotta measure.

56efab83.jpg

2blu442

I know there's some old threads showing the drill spot. But here's a couple photos to show what Chris is describing.

No drill spot in the rib
DSCN1094.jpg


Drill spot in the rib
DSCN1092.jpg

2blu442

Well Chris, I guess its better to have both of us posting pictures rather than nobody posting

John

oldsmobiledave

Here is a better picture. This is a 1966 Toro 425 with the drill spot & thus it was a 39 deg lifter bank angle engine.





In my experience the 425 engines with B heads can be 39 or 45 deg bank angle. The drill spot discerns the 39 from 45 deg versions.


All of the 1967 425 engines that I have owned sported C heads & all were 39 deg bank angle engines. That is not to say that someone has not put C heads on an older 45 deg block.

Fun71

Hah! I was just looking for some pictures, too.

63 F85 Cutlass

Great pictures and info guys, thanks. I'll let you know once I get a few more numbers and have a better look at things

Lars

Hey Chris, that lower pict is a 39* block correct?

63 F85 Cutlass

So, I got some numbers off the motor. I took pictures to share, but I could not figure out how the attach them to my post because it was only allowing me to attach items in the form of a url. Do I have to upload them to the side before I can include them in a post?

Anyway

Front of block to the right of the oil fill: 389244D ( No drill hole)
Front of pass side head stamp: P194139
Cast above center exhaust ports and below valve covers: 394 548
Lower corner head casting: C
Casting to the right of distributor: 5 and under that is 18

64Rocket

As far as I know,
big lifters 39* block
small(.842) lifters 45* block

Gene