Quote:

Quote:

Quote:

Ok I have a few questions.... what was the difference
between the 08 and the 09 engine... for some reason
I get the drift that the 08 is the better engine to
run as a carb engine.... the reason I ask is I would
like to build up a twin turbo gen 3... what parts are
interchangeable between the 08 and 09... or the 5.7
and the 6.1 .. also how do the bores stand up for wear..
I can pick up a 04 5.7 real cheap BUT it has 120K
on the odom.... any thoughts




An 08 is a non VVT engine, same engine used from 03-08, an 09 is VVT, they use different cams which are not interchangeable. The 09 heads are better, probably 30-40 cfm better and are interchangeable. The cranks can physically interchange but the tone rings are different, not that u would use a stock crank with a turbo anyway. It sounds like the 04 block would be the one to use, more cam selection, and apparently the earlier blocks have better wall thickness. 120 K wouldn't be a huge worry, which modern rings and fuel injection the bores are probably fine



Thanks guys..... next question... seems to be a few
09 engines out there... can the 09 with the VVT be
reworked to eliminate the VVT or is it just better
to get a pre 09... I'm looking for a complete engine
to start with



The vvt can be locked out using a cam lockout kit. Kind of pricey but simple enough to fab I think.
I personally think the earlier engine is the way to go. Cams are cheaper and some 5.7 blocks can take .080 over bore. Plus I believe the blocks have better material re hardness to them. They maybe thinner than the average LA block but stronger material and design. Matt