if you start having issues with response i would move the MAF away from the TB as the VE tables calc based on the amount of air traveling through ~18in of pipe

that could cause you to lean out witjh extra air

 

She runs pretty good the way it is but that is something to think about. Thanks

 

wow!! I was waiting for someone to pull this project off - now I know in the winter season what I am going to do...

Any break out in cost of project?

 

Did you use used pistons and rods?

 

I was wondering if there is anymore info out there about the build? I have a spare 5.3 long block and would like to take it to 5.7 i would just like to read up about it first. thanks

 

Nothing to really write up it is so simple. 5.7 & 5.3 share the same rod length and same stroke crank. You get 5.7 pistons (3.898-3.908 ish bore) and carry the block and parts to machine shop and tell them to bore it to fit the pistons. Balancing never hurts either.

The one I built for a friend is running 9psi boost on it right now and loving it.

 

Beautiful trucks Dude! I've always loved that body style!

NICE JOB!

If this motor I have ever goes, I'll probably bore mine to a 5.7 with forged internals and run 15 psi+

 

So all I have to do is find some 3.90" pistons and have the engine bored? That's awesome that it's that easy....hmmm......

 

hmm thats awesome. I wonder what kind of mileage it would get.. ? If i could keep it above 15mpg this will be happening very soon. thanks for the explanation though, I was unsure of the head requirements and all just thought i'd ask.

thanks again.

 

Sorry guys I have been busy. I bought a used crank, rods, pistons, intake, alt, p/s pump, trans, cam, lifters (which I have to replace), etc. I think if you had a complete motor (5.3) and all you had to buy was pistons and you can pick up good used ls1 pistons all day long, buy the time you bore it, rod and main bearings, arp rod bolts, and replace all the torque to yield bolts, gaskets, etc you could do it for a grand pretty easy.