4.25 crankshaft

[moparstud440]

For those that have used either a 440 source or Monlar 4.25 crankshaft in a 400 block, did you have to Chamfer the main bearings? If you didn't, who's main bearing did you use?

 

[604B1duster]

They seem to be the only game in town
Main Bearings-440 Source

 

[famous bob]

They seem to be the only game in town
Main Bearings-440 Source

Hughs engines -------------

 

[604B1duster]

Hughs engines -------------

touché
Looks like better selection and prices also

 

[moparstud440]

Thanks guys, but I'm wanting to know DO the bearings need chamfered?

 

[604B1duster]

Yes they do need to be chamfered

 

[famous bob]

Yes they do need to be chamfered

Mine didnt !!

 

[604B1duster]

Soo... what’s the scoop ?

 

[moparstud440]

Mine didnt !!

Who's crank and main bearings did you use?

 

[AndyF]

Thanks guys, but I'm wanting to know DO the bearings need chamfered?

Maybe, maybe not. I always order chamfered bearings when building a stroker engine since I'd rather be prepared than find out too late that I need them.

 

[famous bob]

Who's crank and main bearings did you use?

hughs engines .

 

[bluefish]

For those that have used either a 440 source or Monlar 4.25 crankshaft in a 400 block, did you have to Chamfer the main bearings? If you didn't, who's main bearing did you use?

I used Molnar crank and rods in my 400 block and did not have to chamfer bearings. I used Clevite P series 876p full groove bearings. Everyone said i would have to chamfer, but i seen no issues on assembly or now with 4 seasons on the motor.

 

[oldkimmer]

Mine didnt !!

Isn’t your a RB block. Totally different than a B block. Kim

 

[famous bob]

Isn’t your a RB block. Totally different than a B block. Kim

see above post^^ by bluefish.
Still hughs engines -------------yes its a r/b.