Quote:
Originally posted by PJS50
Thanks for the info Mike...
So, If I go with the Eagle rods (or any for that matter), you recommend that I have my "guy" machine the Pin & Crank bearing journals or at least check the diameters to see if they are to spec? You have also had to mill the rods for thickness? Doesn't this throw a their weights off quite a bit or if you have to do 1, you do them all?
Excuse me if I sound like a retard... I have re-built 4 or 5 engines down to the block in my day, but I never really did it to where I was replacing vital parts like con-rods in their entirety... Bearings, camshafts and such don't scare me... Like I said before, I just want to do this thing "right"...
I hear what you are saying about the oil passages... Is there plenty of room in my block to open them like you recommend or is it one of those things "maybe, or maybe not..."?
I don't mean to beat the Edelbrock Head thing to death but are the "factory" ports on them pretty good. Or, are they just a good starting point for a needed "port Job"... in your opinion..?
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Your quite welcome!
I have all this information crammed in my head and I like to share what I have learned over the years with fellow gearheads. If at times I sound a bit "overzealous" it is only because the passion of doing things right is always pounding in me.
As far as bearing clearances are concerned, assemble your new connecting rods with the bearings installed a torqued to the proper specs then use a dial bore gauge and get all 8 readings. Subtract .0024" to .0026" (your rod bearing clearance) then tell your crank grinder this is the dimension you want the crank ground to. If your crank is already refinished, you can remove .00005" to .00010" from the inside of the rod on a re-sizing machine to get your clearances. I do not like to remove more than .00010 from a bearing journal because it can affect the set or "crush" of the bearing. Do the same for the main bearings.
I like .0027" to .0030" main bearing clearance on cast iron blocks with cast iron main-caps. Setting side clearance is easy and should be done before final balancing.
The
oil passage enlargement became a problem when builders decided if some is good, more is better and opened up the
oil holes to 1/2' and larger and got carried away with the blending and deburring of the hole openings. 7/16" with simple, clean blending of the holes is all that's neccessary. I have never had a problem with an FE block done this way.
--Mike