4.8 Work

[kmv03]

I have 2008 4.8L silverado that isnt satisfying at all. Looking to bore and stroke it and try to get into the 500+ hp range. Out of curiosity, is a ls1 crank interchangable with the genIV motors? Also is there any bottom end clearancing needed if a ls1 crank can go in? Looking to bore to the 3.898 of the ls1, just curious about what crank options can fit in there

[K1500Tech]

For all that it might be worth doing a swap to a 6.0 or 6.2. The 6.0 is a durable platform.

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If you're wanting 500+ hp with no nos or FI, you better start with a 6.0l engine.

[Zembonez]

Supercharger FTW!

 

The 4.8 is a great engine (same exact architecture as the 5.3-6.0 etc) and the smaller displacement really likes to rev. A supercharger and the right tune would be amazing.

[kmv03]

I always like the old "no replacement for displacement" idea. Just dont want to buy another engine and have this one for nothing. It only has 50k miles on it so i just want to try to punch it out and throw in a crank with some head work. But no power adders, curious to see what i can get out of it naturally aspirated. Im on 24" rims so i dont need torque, mainly shootin for mid/top power for traction's sake