Sweet! That's what I'm talkin about. I have a high-mile 2003 4.8 lying around (I figured I'd build it, but just keep the 4.8's shorter stroke and just go with bigger pistons and clearance the block if necessary. I was thinking 6.0l pistons, but their short skirt has we worried. They develop those knocking/pinging problems, and I don't want any part of that. Still though, I think a 6.0l size bore with the 4.8's stroke would be a nasty motor, and it would rev really freely, too. My kinda motor.

), and I've tossed around the idea of throwing it into my car, but I don't have access to a good TIG machine, and I don't wanna do headers and stuff on the MIG. Also, I LOATHE automatic transmissions, and T56's aren't cheap. The older 5 speed is a good idea, but then I think about the GTO oil pan and back to the headers, and I just discourage myself out of it. I'm entirely too on the fence about motor stuff. That works both ways, though, cause I know quite a bit about all the swaps people do into 240's.
atutt, do you have any videos of your car?
Go with a .060 over piston. It'll make it a 5L. And it'll rev fucking sky high! I've seen this done with solid lifters and such, reach over 7500RPM!!!!!
They are also press fit to stock rods.
You can also C5R pistons which are press fit to stock rods. Or get C5R rods as well. but this would obviously make it a 5.7L
The biggest these iron blocks can go is a bore of 3.9'' and a 4'' crank. You can fit SLIGHTLY larger OEM pistons in there. But aftermarkets can only be up to 3.905''.
NEVER USE THE 5 SPEEDS!!!
It takes to much work and it's not worth it. the 5 speeds are shit trannies. I know t-56s are expensive but they are worth it. Save up for one.
No, I don't have any vidoes of my car and you'll see why in a second.
Now, as for the part of you not having a TIG...
When I'm 110% satisfied with my mounts. I will probably sell a few sets. maybe even have a few aluminum sets machined.
But that would mean you'd need my headers as well, lol.
Which I have not designed yet. Which is one reason why my is not running. I haven't made my headers.. Or should I say. turbo manifolds, lol. But they wno't be cheap AT ALL. All my stuff is back purgedand done properly. (Since I'm a cert TIG welder, and used to do pipe fitting)
I also need a GTO oil pan and pick up. And I need better heads.
Also, My engine isn't exactly in MY car. I picked up a spare S14 chassis to do my swap in. So I could have EVERYTHING worked out, and have it up and running. And, so I keep my DD up and running and have no downtime.
Honestly, this is the best way to do this kind of swap. Buy a spare chassis and do everything in that. It's much more stress free!
On boost, I've seen the stock 4.8L handle 700whp.
God damn, free is the right price! Sounds like you are gonna have a nice setup! :thumbsup
I've always thought that a LR4 with LQ4/LQ9 pistons would be a hell of a setup! I've just never got around to building one. I've always thought that that setup with a 4L60-E and a Corvette differential would be a nice setup for a custom Ariel Atom type car. One of these days I'm gonna build that....
yeah... you can't beat free...