250 bore

[kat4568]

Dang it, you are right. So far, no one offers a bushing kit for the 300 rod. I've checked with Clevite, Eagle rods, and a couple others. I'm going to talk to my machinist Monday and see what he says.

 

[kat4568]

How much can the crankshaft journal be offset? Stroke the crankshaft, get a few more cid's

 

[pmuller9]

Also the Ford connecting rod has a .990" big end width while the Chevy rod has a .940" big end width.

 

[kat4568]

I can't find the opening for the 4.7L V8 dodge piston is. I wrote UEM Pistons that manufactures Silv-O-Lite pistons for the dimension of the rod end opening for that piston.

 

[pmuller9]

If you bush the connecting rods then you will need a piston that uses a floating pin.
The Hypereutectic pistons you are looking at use press fit pins.

 

[kat4568]

I'm starting to think about buying a 300, and build it. Not being able to build the 250 that will achieve what I want, is a waste of money.

 

[pmuller9]

I'm starting to think about buying a 300, and build it. Not being able to build the 250 that will achieve what I want, is a waste of money.

The biggest problem with the small inline six is the lack of performance camshafts
Any flat tappet cam and lifters that are still available have a reliability problem.
We solved that problem on the big block six by making roller cam and roller lifters available.

 

[kat4568]

I've got a bunch of articles for 300's.

 

[aussie7mains]

Look to the south if you want a good ford 250, we had them!

 

[Frank]

I'm starting to think about buying a 300, and build it. Not being able to build the 250 that will achieve what I want, is a waste of money.

What will the engine be used in? The 300's stouter, quality performance parts available, it's also much bigger physically.

 

[kat4568]

What will the engine be used in? The 300's stouter, quality performance parts available, it's also much bigger physically.

I have a 76 Maverick will be it's new home. I know there will be a bunch of work needed for the install. I'm also looking at the 6r80 transmission from a turbo V6 f150. So the tunnel will probably need a little massage work.

 

[drag-200stang]

I love my 200, but I would build a 300 before a 250, especially if using US engines and parts.