Still not sure if I'm going to go with a 355 or a 383, hopefully this'll help me decide. My stock shortblock's days are numbered with the current setup

DD days are over for my car, going for bogarts and a 28" slick, but sticking with the 6 speed. Will be running stock PCM, so RPMs need to stay south of 7k.

Planning on spraying a 250+ shot regularly through the new engine (setup for dual stage progressive), will be upgrading to a converted single plane to solve the distribution issues.

Since its going to be mostly a track car, I plan on running a solid roller nitrous grind planned shifts at 7k. My question is if the 250+ shot and 383 will be restricted by a stock casting (LE3 or Ai 200)? I don't really want to step to an aftermarket casting so that's where the 355 comes in... Clearly splayed mains and head studs are in order, should I also look into block filling?

Opinions welcome on the whole setup as well, thanks!

 

this isn't uncharted territory....

 

i know there's people running both heads (LE, Ai), and there's a few people spraying 250+ shots on this board.... little help please

 

cubes should be dependant on the weight of the car mostly...and tranny id say bigger is better almost always though...more cam more power....smaller cubes smaller cam