I'm looking into ordering some pieces for my friend's Hemi project. He has a KB alum standard cam location block on order. Wants to go with a 4.500 stroke and oliver rods. Two opinions are that the rotating assy will fit no problem, and two other well known builders say no way.

Which is it? The previous combo ran a 4.375 stroke with Howards aluminum rods in a KB block with the standard cam height. This block will also be standard cam bore height.

If you have build a few KB hemis with a 4.500 stroke and had the stock cam bore location, please chime in as to what if any issues you had so I can get some parts ordered.

Thanks!

If it's BBC rod size, no problem.

Holy shi+. It's Darren. How are things going man. I haven't seen you around in a while.

Yup BBC rod Journal. Thanks Darren.

Chevy journal rods should clear the cam but look at everything including the oil tube if you are using a stock one.
Call KB and ask them, make sure you can ID the block
Don't assume anything=check everything

Ken Black said sure, nor problem. Barton said the rod would hit the cam.

It has an external pickup, so no tube issue. I just wanted to get my stuff straight before I order something I can't return.

Thanks.

I have a 4.5" stroke with chevy journal and GRP alum rods. No clearance issues with cam or block. I did have KB do the machining to clear. You can see in the pic where they took off material at the bottom of the cylinders.

If you have an std dimension (cam location) KB block and a 4.5 stroke with Mopar rod journals it will clear the cam but it is close, if the cam is not degreed correctly or if it walks forward it will hit the #2 or 7 rod (I think its been a while)
Also you will have to make space at the bottom of the cylinders on both the cam side and the skirt side. other that it drops right in

should not hit. ive got a 2003 mopar block with a 4.750 callies and oliver 2.2 [chevy rod] 7.100 long with no grinding except at the oil pick up tube !!!

Barton said the rod would hit the cam. The question was with the 7.100 rod length, and that seems to be addressed here too. So it looks like we'll be ok, and we will check everything of course.

Thanks guys!

World Block 4.5 bore
4.5 stroke crank and 7.1 long manley rods cleared everything... I could even run internal oil pickup with that block.

KB / RBRE built motor - Oliver 6.86 chevy rods , 4.6125 Bryant crank . No hit w/ standard can loc'n .
Chryco

Call Ken Black and 4.500 with Chevy Journals will clear and all so 4.500
with Mopar Journals will clear too.Most of the engines going out the door are 4.500 X 4.500 ---572ci