Projects A baby elephunt followed me home :)

According to the numbers on front of block and link posted above..
This come to a 55 New Yorker

 

Done some dis***embly today..







The cylinders look good a little carbon ridge at top.. Looks like going to get away just rings here..




Have not pulled the pan yet.. Keeping fingers crossed that dont need much but bearings

 

I have seen them on single 4-barrel, too. You will know as soon as you pull a valve cover, and clean a little.

The end of the part number is 555.

The number is raised, and should be between the center two spark plug holes, biased toward the exhaust side a little.

 

I didnt get lucky with adjustable rockers... Or "Good" heads..

Count my blessing tho, That NO rust in the cylinders.

 

No bumps in the valve covers indicated no adjustable rockers without looking. That's ok. Adjustable pushrods are easy to get. You don't want to check the prices of adjustable rockers.

Good on the clean cylinders!

What's the part number on your heads?

 

JUNKYARDDOG_I... is that an International delivery van next to that Dodge Humpback???

 

Mac

Why yes it... Good eye you have.

 

No, all the '55 car heads. The '56 354 car heads are about =.

 

"Triple Nickel" heads have three 5s in the part number. That's what you have there.

The '55 Chrysler 300 used the same short block and heads as the New Yorker, but used two WCFB carburetors and a bigger cam (with adjustable rockers) to arrive at 300 horsepower.

 

I wouldn't get to hung up on the head casting number deal. All the 1955 and up low deck Chrysler p***enger car heads are good.

 

I've been looking for one for a while

 

These are the same heads that are on my engine as mine is a '55 New Yorker 331 as well. I believe '55 was the only year for hardened exhaust valve seat inserts.

 

This would be interesting to know...
That way my machine shop won't have to.

 

Also what would be a good driver cam...
Nothing sto0pid. Automatic with no stall

 

I put an H205 from Hot Heads, with fresh lifters, in a customer's car. It is spirited, without being ridiculous.

https://hothemiheads.com/cam_shafts_timing/camshafts_new.html

Do the timing set while you are in there. It's cheap insurance.

You can run an inexpensive adapter to get you to a modern 4-barrel. I like to modify the otherwise pretty good manifold. Chrysler did their homework on this one. It flows well, and is well-balanced.

Carburetors like the ones from Edelbrock have the big pattern, and the small bolt pattern that your manifold has. It will bolt on, but the throttle blades will hit the manifold before they open all the way. You can die grind for clearance.

I clamp mine in the vertical mill and run an annular cutter down the holes, but hand work is fine.

About a 650cfm is good.

 

I removed the valve seat inserts on mine because the chambers were very rough and needed to be cleaned up. It's been a long time since I did that but if I remember right they were still in good condition. If they still looked good I would imagine the machine shop would be able to resurface the original inserts. If new ones were needed like everyone else said Hot Heads is the place to go. Here's a picture of the pocket with the insert removed. Like I said I'm pretty sure '55 was the only year they did the hardened exhaust seats which is a plus.

 

If you have room you could use a phenolic spacer under the edelbrock and grind that, I did this with my y block, 3/4” spacer. They list the carb as a square bore but really it’s slightly spread at the rear.

 

Apparently all through '55 do, plus the 300 & "Power Pack" engines supposedly.

 

Edelbrock has the small pattern, you just install longer carb studs. HH has the adaptor/squeeze plate to match the bores, or bore the intake to align with the modern bore pattern. On my 331 I have the adaptor and a phenolic spacer due to vapor lock problems w/o it in the Summer. For most a 600 is plenty. Cam:If you call HH they will ask what C?R is, what ******, what rear axle ratio, how heavy the car is & what type of performance you want to recommend a cam. They sold me a Howard's cheaper than buying direct.

 

My 270" has a BBC pump. When I bought it the roadster the builder had run a hose off each head to the radiator without a T-stat. I made this in order to run a T-stat, the tubes may look small, but they are the diameter of the p***ages in the head and it runs cools without any problem

 

Well Finally got the engine on a stand... The bottom is I think AMAZING !

No gouges,no wear, Like it had a new set of bearings put in not long ago.





Those are the rod bearings all the same,,

Standard size even..

 

Here is the main..




Even the lifters wasnt worn..

 

I did have one piston that came out with a broken top ring tho..

But could have been from the carbon ridge at top of cylinder..

I believe except for the sludge in this engine it may have been a runner..?

 

As for hardened exhaust seats, my '52 Desoto 276 had them.

And keep those lifters in order!

 

If in doubt, throw them out! (what hole each came out of).