Fred's 2375 Rebuild Thread Options

[friethmiller]

[A softball question for the Ninja and/or others]

This is the cam card that came with my 2357 engine, which was originally built by Rimco/Fat (long block) a few years ago. Can someone explain why with an intake/exhaust of 448, the lift was only set to 327 degrees? I'm about to rebuild my motor and a lot of focus will be directed at piston "deck clearance" and the valve train geometry that wasn't set correctly. Thanks.

[cgnj]

@Montreal914 @friethmiller This was a low mileage motor that broke the tip off of a pushrod. He paid for a long block from FAT (don't know if he cored his motor). He took it apart and these are the parts that were in it. It explains the short rods, the huge deck and the problem with the oil control ring. So, trying to make lemonade from lemons.

Rods are short. I'm sure a 5.4 rod will fit. 5.5 will be a question mark. I don't think he will be able to get an off the shelf shim. Engine width will become a problem. May have problems with the tin. Could have big end cam lobe interference issues.

I think he has 44x38 valves. He has dual springs. They are probably ported. It's what he has. I used 1.8 heads. I did have the plugs relocated and tapped for 10mm plugs.

It's a late case. It would be interesting to find out if it does need to be decked. If you listen carefully to the 3 cases video, early cases for big bore motors. I have 3 cases that I'm going to drop off soon. I'll let everyone know what happens.

[friethmiller]

I have 3 cases that I'm going to drop off soon. I'll let everyone know what happens.

Can I inquire as to which shop you are getting this work done?