What extensive machine work needs to be done to do this?

 

Clearancing the block so the crank throws don't whack it, and blow hole in it. I don't think you can just toss a four inch stroke crank into the block, and simply expect it to work.

Or can you?

 

grinding the block for rod clearance is a MUST. not to mention any piston modification to set quench. Those are just to name some mods for a stroker particularly, not to mention all of the normal things you would do to a used block.

you should see how close the pistons are to hitting the counterweights...ITS SCARY!

 

Actually yes you can. Simple notching of the bottom of the bores is required to toss a 4" crank in a small block mopar. No other modifications/extensive machine work required. This is pending correct designed main/rod bearings used or it wont spin freely. Point being a mild stroker can be build on a budget.

Yep notching for the rods got pics of this?. Thats one way to set quench with a custom piston. Easier/cheaper to deck the block to zero. This gives you the ability to use many different less expensive off the shelf pistons. Then theres skies the limit if chevy parts are used lol.

 

ill post some pics when i get my SB and heads back from the machine shop

 

Well the update on my 5.9 rebuild. my dad has bought a used engine from an auto salvage yard out of a 99 durango they told him it would drop right in and run. Looked in the tb and plenum is covered in oil. oh it has 89, 000 miles