RE: {Chrysler 300} Original Ram Engine Block Cracked :( What to do?

Mike,

This will not be a popular choice…but…

I would document all the block casting numbers, that is different from the stamped numbers. Then find a 413 from another 1964 Chrysler that has the same matching casting numbers. Mill the stamped boss and re-stamp it with the same stamp on the existing block. (This assumes the block is checked and good).

I do not personally like the 440 in the 300K I had in the 1980’s and 1990’s. The larger pistons made the engine feel more sluggish on the lower-middle end. The lighter pistons on the 413 I “feel” allow the engine to rev a little more freely stop light to stop light. The 440 has more total HP potential, but my experience is the 413 just feels better.

Also, the serious block crack guys and do wonders. But the cost of that may well exceed my idea above by a lot.

James

From: 'Mwl1967' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Sent: Sunday, July 16, 2023 15:25
To: Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} Original Ram Engine Block Cracked :( What to do?

So the machine shop showed me the cracks in the water jacket areas of the original 413 from my 300K. They don't want to fix it. I'm torn between giving them the other 413 I have or just building a 440. The 440 is way more common and has numerous piston choices and will hide neatly below the short rams. I really believe the Rams operate best if they are on an original engine with original carbs and camshaft. Am I wrong?

I was really hoping to build a 413 using an original ram engine cam. I seem to recall someone was reproducing the J/K camshaft?

Looking for recommendations. I've had this car 33 years and want to make sure it's user-friendly for the next generation and perish the thought... I've had a brand new factory Gen III Hemi sitting in the corner for ten years. I've been imagining it painted torquoise with a gold intake.

Help me out here...

Mike Laiserin

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