Originally Posted by Spiffav8 (Post 725641)

What happened to the 69 LS7 build? Wasn't it in paint late last year?

Originally Posted by srode1 (Post 725572)

As far as fitment the LT4 high pressure pump will mean you probably need to modify the firewall for clearance, for the pump and the electrical connections. That's the price of direct injection vs port injection. I'm sure you've read the other technical differences and that the LT4 has more torque earlier making for a flatter power curve too which is an advantage in any application IMHO. The wiring on the LT4 isn't really complicated, just plug stuff in and it works and it's gone in lots of cars so there's plenty of information on front runners.

Originally Posted by rpol78 (Post 725644)

My understanding is you have more ECM options with the LS and more options for making changes. I do like the LT4/LT5 engine with the direct injection. It just depends on what you want to do in the future.



Hmmm... Makes me wonder what my LS 396 engine is worth (LS9 block/LS9 CNC heads, Callies Magnum custom crank, Callies Ultra rods, JE custom pistons, Kong 2650).

FWIW - This is going in a '67 Chevelle.

Originally Posted by colorado80439 (Post 725663)

Very nice, Kong 2650 LSA blower on an LS9, with a dedicated SC pulley who's front runner is that?