Put a blower & headers on this! These motors are the best deals out there!
https://www.performancetrucks.net/fo...d.php?t=423936

 

6.0 LS2 with L92 heads and L76 intake for $4895.00. I wonder what the compression is on that engine though. I'm imagining most likely around 10:1. They make rotating assemblies for LS2's of course so you could go forged with everything already there including your fuel rails, flexplace, even the plugs. Thats not a bad idea, but then of course theres the trans, rr, brakes, fuel system... Not a bad idea though.

 

For the guys with the 408's. What kind of life do you get out of a 408? Reliability speaking.

 

The same if not more then a stock motor, as long as you maintain it proper, don't blow the rods out of the block form over boosting, or spraying it to death..

John

 

Seriously...u shud just build ur 5.3...the stock internals on that motor have been pushed up north of 600rwhp. There really isn't any reason not to go with the stock stuff (pistons, rods, crank, rockers...etc) unless ur stroking, or boring. U can get 400+rwhp and not have to spend another $4500 on a tranny and rr end - at least not right away. Jees...I wish someone had told me all this stuff!

 

In actuality, it is titled appropriately. The OP can bore his 5.3 block to 3.905 and use the 4" crank to get 383 out of his current engine.

Thread content: I've been informed (after the fact) that my long stroke 383 is not the ideal FI setup. I agree with those that recommend using your 5.3L...bore it to LS1 specs (3.898 bore), get your assy rebalanced and away you go with a 5.7L.