Bearing Clearance

[Maverick87]

I used the search and didnt really come up with much. What does everybody recomend for rod and main bearing clearances? Block is being machined for 4 bolt mains as we speak.

Also how much differance would they be between the 422 comp. and a coustom grind cam performance wise?

 

[turbodig]

Re: Bearing Clearance

I used the search and didnt really come up with much. What does everybody recomend for rod and main bearing clearances? Block is being machined for 4 bolt mains as we speak.

Also how much differance would they be between the 422 comp. and a coustom grind cam performance wise?

.001 -.0015 on the rods.
.001-.002 on the mains.

If you keep to these, you won't need to get crazy with oil pump pressure. (< 60 psi)


As to the cam, it depends on your heads, and turbo.

Later,