how does this block sound instead of my old dead 5.3

New GM 6.0L Cast-Iron Block
Item#:
28-12551366

Brand New GM 6.0L Cast-Iron Block, 4.0" Standard Bore
Bare (No Pistons, Rods, or Crankshaft)
Perfect For Building Your 400+cid Stroker!!

or this one

New GM 5.7L Aluminum LS1/LS6 Block
Item#:
28-LS1Al
Price/ea.


GM 5.7L Aluminum LS1/LS6 Block, 3.898" Standard Bore, Bare

 

you gonna reuse your existing heads?

 

yup on planning too.. to use as much as the old parts as i can..maybe some after market pistones

 

You should keep your eye out for someone selling a set of 317 heads. They will flow better then the 5.3 heads, unless you want to run the 5.3 heads for high CR.

 

yea tryna get a lil bump in compression ...which ones would be better if i port and polish them.. my 706's or the 317's

 

The 317 heads are nice but a 243 is better still..... Why not go with a LS2 block? Other than the covers and sensors can be a pain in the *** it's lighter. Hell SDPC has the L92 motor for $5300 or something retardedly low.

A LS1 block with 243 heads would be a nice upgrade. Lighter weight and more power.

 

whast the difference between the ls2 block and the standard 6.0 block right/? just that one is alumin. and the other cast iron right?

 

one is a genIII and the other is a genIV
different ecm, different sensors (cam, crank, etc.), and a few other changes.

 

if you got the money go with what ever gives the best power for the buck

 

and which one would that be???? would my cam work with the ls2 if i go that route? as well as my bolt ons?