Will a factory 350 block take a 4" stroke crank?

I understand you would have to grind, like when using a 3.75 stroke, but is there enough meat to grind for a 4" without getting into a water jacket?

 

Maybe, but if you're doing that much grinding on the block then usually you put a few inches of block fill in it just in case.

 

Good point about the block fill. Just wondering if it would even be possible.

 

does anyone make a piston for a 4" stroke and 4" bore? also, how bout the rods clearing the cam?

 

All the parts are available, it's just not a particularly popular combination. Cam lobe clearance is the same as if you were putting a 4" stroke crank into a 400 block.

 

so would you have to run a small base circle cam?

 

I would think it would be pretty much essential, along with clearanced rods.

 

seems like it would be better to run a larger bore though...that way you could atleast put a bigger valve in the motor to allow the air to get in and out with all that added volume.

 

More cubes are always better.

 

And then when you get done doing all that work and spending all that money, and you suddenly realize you just spent $3000 or something and you're still leaving 25-30 cubic inches on the table that would only have cost you $200 or so more, you'll be feeling mighty stupid.

Don't do it to a 4" block. Use a 4.125" one.

 

these are my thoughts...

 

I feel bad enough rebuilding my 383 when for $1200 more I could have built a 434.

 

All I wanted to know is if it was possible. Yes, more qubes are better, but in my neck of the woods 400 blocks are about as easy to find as Aluminum big blocks.

And wouldn't a 4" stoke add more cubes and make it better than the run of the mill 383 everyone builds?

 

it depends. running a small base circle cam and the rods that will be needed to make it work are going to be expensive. the block fill to make sure the waterjackets don't leak will make cooling on the street difficult.

the end result equals 402"...but you will need a very good flowing head for all those cubes but yet keeping a 2.02 or 2.05 intake valve. look into the brodix track 1 heads. i'm also thinking 12.5:1 + c/r and race gas. it'd be a screamer...but is it worth all the money to do that and NOT spend a little extra cash getting a 400 block shipped to you and build a 427 or 434...