6" rod

sean

Member
has anyone tried using 6" on a stock crank rebuild instead of a 5.7? if did how did you like it? was it streetable?
 

Quickstop [UK]

Combating adversyty.
Re: 6" rod

connecting rod? wouldn't that push the cylinder up past the top of the valves? or mess up the compression ratio?
 

dgoodhue

BuSTeD 4.3
Re: 6" rod

I don't see any reason why it won't be streetable, longer rods tend to be more desirable for detonation anyways. The bigger issue is that their isn't an off the shelf rod machine for 4.3, so you would have to incur the machining cost and a find piston for 6" rods. I don't know if the block would need to clearanced.
 

turbodig

Active member
Re: 6" rod

The larger issue is that unless you destroke, you have to push the pin up in the piston to accommodate the rod. This forces the ring pack to move up and tighter together, which gives you less material in the crown area. (unless you have a tall-deck block, of course)

Turbo motors make a lot of heat, so you want more crown thickness.

This isn't something I'd consider to be a terribly good idea for a street motor. If it's a race motor that you don't mind pulling apart periodically, you could play with it.

I was always curious about making a long rod/short rod motor, with a custom intake...
 
Top