Hey all, I finally got my LS engine in and running. Here are the build specs for those of you who haven't following along.

The block and lower end are 2002 5.3L LM7 OEM, all new seals and gaskets. Comp cams nitrous cam. I ported and polished the heads, I put about four hours of work into each head, then sent them out and had them milled to net me a compression ratio of around 10:1 and bolted down with ARP head bolts. I used an F-body oil pan and pickup tube and installed a high pressure oil pump from Melling. Headers are ceramic coated 1 7/8 long tubes from Melrose Corvette. Intake manifold is an Edelbrock Vic Jr. Throttle body is from FAST and houses the fuel injectors as well, my fuel system and ECU can support up to 1000hp (overkill but at least I won't go lean ever). Ignition is handled by an MSD ignition controller and stock LQ9 coils (the high output square coils). For the engine mounts I used the stock mounts and VetteAid adapter plates, to bolt my 700r4 and my 3000rpm stall converter to the LS block I bought a custom flex plate from Advanced Adapters. I did not have to cut my crossmember, however I did have to cut and patch the firewall in two places, behind the passenger side head and around the rear header tube on the driver's side. I'm estimating engine HP output of around 530hp, similar builds with stock compression and more mild porting on the heads have gotten around 490hp so I should be around my estimate.

Anyways, here is a video


I still need to button a few things up. I need to figure out what I am going to do to get my wiper motor mounted up. It will fit, but it will sit directly on top of the PCV valve and make it impossible to run Vac line to it, I also need to tuck some wiring and move the ECU to under the dash, basically just clean up the install, make it pretty. lol

Cam card


Head work

 

Sweet!!!

 

Awesome, nice work!

 

 

what hood scoop? I need one.

 

Thanks guys, I put a ton of work into this car over the past 3 years. This engine swap is just a drop in the bucket, and there is more to come. Next I will need to build up the trans and rear end. Then I can focus on body work. Not going crazy with a body kit or anything like that. Just a repaint with new trim and some minor aero updates: front splitter, rear defuser and I might make a smaller version of the rear spoiler than comes on new z06s. I do still have my Greenwood wing, but I'm on the fence about putting it back on.

As far as what hood scoop I have its a 4 inch bolt on cowl from Harwood. The angled sides on it really give the car an aggressive look in my opinion.



The vents in the side of the cowl are something that I did myself. The amount of hot air that comes out of those with just the radiator fan on is astounding, really helps with heat extraction. I think I could damn near make toast if I cover the vents with bread when the car is at operating temp. haha



This is how much of the stock hood I removed.



Here's the view from inside the car.

 

Awesome. Thanks for the hood scoop pics. That is a harwood 4104. I just ordered it. Your car looks great and must be a screamer.

 

Looks good, enjoy the new ride and the power.

 

Congratulations!!

 

Thanks guys, i'm going to have to post another video here soon of some driving. Saturday I'm thinking.

 

What is hanging up outside the hood?

 

Are you asking what would be hitting on the stock hood or what parts of my engine stick up through the hole in the stock hood? A large part of the front of the throttle body and all of the air filter stick up through the hole in the stock hood.

 

I have some clearance problems myself with the LS3 Hot Cam installed. Your solution might just work for me as well. However, when the hole was cut in the stock hood did it remove or weaken any of the support structure on the underside of the hood? Just curious.

 

No I didnt remove any of the structure of the hood. The '84 hood support structure is pretty wide because of how large the air filter housing is for a crossfire. It doesn't flex at all.