Clearancing SB for 4" crank and Eagle rods

Clearancing SB for 4" crank and Eagle rods - 01/23/09 03:31 PM

Where all will I need to clearance the block when running a 4" crank and Eagle rods in a small block. It's a 318 block. I'm guessing the bottoms of the cylinders for the rod bolts and possibly the pan rails?

I've never build a SB stroker so this is new to me, looking for some input.

Posted By: runya

Re: Clearancing SB for 4" crank and Eagle rods - 01/23/09 03:36 PM

The oil pump housing may need it also, I recieved a good tip from this board on making a thin spacer from aluminum to put between the pump and block to push it away far enough, that way to don't have to grind the pump housing.

Posted By: WadeMetzinger

Re: Clearancing SB for 4" crank and Eagle rods - 01/23/09 03:41 PM

Interesting on the oil pump spacer, I'll have to look into that.

Do you have to do much clearancing on the block or is it just minor and some don't even need it, just asking.

What about the counter weights on the crank, do you have to do any clearancing on the block for them? It's a K1 crank.

Posted By: S/ST 3040

Re: Clearancing SB for 4" crank and Eagle rods - 01/23/09 03:44 PM

The bottom of the cylinders.

Attached picture 4967590-DSCN1758.JPG

Posted By: MR_P_BODY

Re: Clearancing SB for 4" crank and Eagle rods - 01/23/09 03:52 PM

Alot of you guys take pics of everything, some day
I'll learn to do that also

Posted By: rt66jim

Re: Clearancing SB for 4" crank and Eagle rods - 01/23/09 03:53 PM

Wade, if they are I beams it may not need anything done to it.

Posted By: WadeMetzinger

Re: Clearancing SB for 4" crank and Eagle rods - 01/23/09 03:56 PM

They are H-beams...

Posted By: runya

Re: Clearancing SB for 4" crank and Eagle rods - 01/23/09 04:00 PM

I used a K1 crank and rods, and did have to do some clearancing around the main webs also (very little but did need some).

If I remember right I used 1/16" aluminum under the pump with no gaskets, just make sure the spacer is flat and no burrs.

Posted By: S/ST 3040

Re: Clearancing SB for 4" crank and Eagle rods - 01/23/09 04:03 PM

Quote:

Alot of you guys take pics of everything, some day
I'll learn to do that also

Not everything!

Pictures save me words.....I don't always articulate my thoughts
so other people understand me. Please, no comments.

Martin CC 2007

Attached picture 4967633-DSCN1052.JPG

Posted By: MR_P_BODY

Re: Clearancing SB for 4" crank and Eagle rods - 01/23/09 04:18 PM

Quote:

Quote:

Alot of you guys take pics of everything, some day
I'll learn to do that also

Not everything!

Pictures save me words.....I don't always articulate my thoughts
so other people understand me. Please, no comments.

Martin CC 2007

Thats the same way I feel.... and it would be alot
easier than trying to spell it all out

Posted By: bennydodge

Re: Clearancing SB for 4" crank and Eagle rods - 01/23/09 05:34 PM

I'm running Eagle H-beams in my 340 stroker. I had to notch the bores but my oil pump cleared just fine(MP high vol., MP 4" cast crank).

Posted By: Kam*Kuda

Re: Clearancing SB for 4" crank and Eagle rods - 01/23/09 08:04 PM

Here is the clearancing that I did.

Attached picture 4968115-360blocknotch.jpg