Crank oil pan opinions

Ed Wright · 01-19-2020, 09:18 PM

In my old ‘56 Chevy 265” Jr Stock, in the late ‘60s, I borrowed a friend’s big lathe. My pistons were from Jere Stahl. Forgedtru, extremely lightened. The first crank I had, the counter weights were drilled everywhere. I decided to lower inertia all I could, and loose all the big holes drilled in the edges of the counterweights. Wanted to clean up those edges, hoping to “streamline” them somewhat. My friend who did my balancing also owned the big lathe I used. Our shops had a door between them. I spent part of a Sunday cutting them down on another crank. Smaller diameter of the counterweights = lower inertia.
I new it would likely need some Mallory (Tungston, right?) to balance it. I had no idea how much. LOL
I was almost 22 years old. Typical twenty something, thought I had everything figured out. LOL Boy, did I get a cussing from my balancing guy! It almost bounced off his balancing machine first time he spun it up.
Lower Inertia is worth something. It was faster. Mallory wasn’t cheap, either. Never had that much in a crank at that time. First weekend out, it was worth it. Thought I had hung the moon.

01-19-2020, 09:18 PM	#13
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Crank oil pan opinions In my old ‘56 Chevy 265” Jr Stock, in the late ‘60s, I borrowed a friend’s big lathe. My pistons were from Jere Stahl. Forgedtru, extremely lightened. The first crank I had, the counter weights were drilled everywhere. I decided to lower inertia all I could, and loose all the big holes drilled in the edges of the counterweights. Wanted to clean up those edges, hoping to “streamline” them somewhat. My friend who did my balancing also owned the big lathe I used. Our shops had a door between them. I spent part of a Sunday cutting them down on another crank. Smaller diameter of the counterweights = lower inertia. I new it would likely need some Mallory (Tungston, right?) to balance it. I had no idea how much. LOL I was almost 22 years old. Typical twenty something, thought I had everything figured out. LOL Boy, did I get a cussing from my balancing guy! It almost bounced off his balancing machine first time he spun it up. Lower Inertia is worth something. It was faster. Mallory wasn’t cheap, either. Never had that much in a crank at that time. First weekend out, it was worth it. Thought I had hung the moon. __________________ Ed Wright 4156 SS/JA Last edited by Ed Wright; 01-20-2020 at 06:31 PM.