jn76vette

Anyone using a 5.3l, 5.7l, or 6.0l Vortec out of a Truck/SUV, I'm thinking of a 6.0 out of an Escalade, maybe add a procharger.
Would this be a good conversion? Will it fit in a C3?

jn76vette

This is the motor I'm thinking of, 6.0l 345hp 380lb-ft of torque.

comp

number's sound good but i don't know anything abut the swap

lostpatrolman

It is the same thing as a ls1 except iron block and 4 inch bore instead of 3.9 inch. All parts interchange between the gen3 blocks. If you want the 6 liter, look for a lq4, or lq9. The lq9 is escalade, the lq4 are in the other trucks, same thing though. All 2004 6liter blocks should be aluminum anything older is going to be iron. All heads are aluminum except for the first year of production which was either 98 or 99 they were iron.

jn76vette

I think it uses the same motor mounts as older engines, not sure though. My biggest worry would be hood clearance. If a procharger kit would fit in the C3, it could have between 534hp and 603 hp. it sounds interesting. I think I'll have the local scrapyard on look out for a good used one.

P.S. Aluminum heads started with the 5.3l, 6.0l and 8.1l in '99 model year. before that the 5.7l and 7.4l Vortecs used iron heads.

lostpatrolman

6.0 vortecs are gen3 blocks. They use the newer style and location motor mounts. Basically the swap is going to be exactly the same as what Budman78, scooter70 and 70ls1 have done.

lostpatrolman

As for superchargers, there is a roots style called a magnacharger. It should fit fine with a l88 hood. The vortechs and prochargers should also fit if you get the fbody specific ones. You should still be able to run the stock hood with those also.

jn76vette

Thanks for the info, I was starting to worry that no one would know anything about it.

lostpatrolman

LOL, i been reading up on the gen3 blocks. I already bought a 5.7 from a 98 trans am and am hoping to put in the vette soon. The 6.0 has a 4inch bore and can be bored .030 over, although people have gone .060 over without problems. Stroke is 3.62 although you can easily go wiht a 4 or even a 4.125 stroke. The stock crank should be almost bulletproof. The rods are good to around 550 hp, after that they will start to bend. I think the pistons are hypereutetic which means keep n20 shots at 150 or under. If you plan on reving the engine high, you need to replace the rod bolts with the 2001+ bolts, the earlier ones seem to stretch with the rpm. The fbody and corvette specific supercharger kits are pretty expensive for these engines.

jn76vette

My dad has done alot of business with the local scrapyard. They are good at finding fair priced, low mileage engines. Factor in the our shop's discount and going this route should be much less than a typical LS1 install. Not sure if I will go the superchared route yet. Might be able to adapt a cheaper kit for a truck/suv to fit.

lostpatrolman

It isnt as simple as a drop in install, some modifying is required. The wiring will need to be reworked a bit. Take a look at these sites
scooters site - http://www.kmmotorsports.com/
http://www.corvetteforum.net/c3/gameshowbob/swap.html
Budmans site is down

jn76vette

It won't be easy, but I think the results would be more than worth the effort.

lostpatrolman

Oh yeah, the newer engines are definantley worth the aggrevation and work. Where else can you get 18 mpg city and still have 300 rwhp?? If you do go with the 6.0, then put a cam in. Just adding a mild cam will add huge amounts of power and still be perfectly driveable.

jn76vette

I've also been thinkin about pulling the body for other minor repairs, that should make the required frame modifications easier.

lostpatrolman

The only frame modifications would be making the crossmember removable. That isnt even neccessary though. Most of the fabrication seems to be making motor mount adapters, making a trans mount, fuel system, engine harness needs to be modified, need new exhaust, and depending on where you locate the engine the accessories might need to be moved or some frame clearancing whichever you prefer. Oh yeah, if you go with the manual trans, then you also need to mount the hydraulics for the clutch. The shop might charge some very interesting prices to install this. If you took your time and did this yourself, them I am sure you would save enough money to buy the supercharger kit.

jn76vette

I know a guy that can fabricate mounts, brackets, and other frame work. He's made vehicles of all kinds from scratch. Best of all his labor rates are very reasonable. I've done alot of business with him in the past, and his work is top notch. I had him fix some of the original GM welds already.

I'll probably go with an strong automatic.

jn76vette

(pi/4)*(4.06^2)*(4.125)*(8)=427.3ci Sweet, don't know if i'll go that extreme though.

comp

this one sounds real good

jcswm

As I type this..... My (Modified)1997 Vortec 350 is on the engine stand ALMOST ready to be installed. My bone stock, numbers matching L-82 is hanging from the "cherry picker" My Hooker headers/sidepipes are still in the box and my garage looks like a car bomb went off!!!
I'm sticking with a carb, so I bought the GM Vortec intake other than that I've needed; New flywheel & starter, Electric Fuel pump, new style EGR valve AND ONE FRIGGIN HOLE drilled & tapped into the Vortec block for my clutch pedal Assy!!!!! The boss is in the block but not drilled!!! so my weekend transformation gets delayed 'till I bring home the proper drill & tap!!!

jn76vette

I'm mainly looking at the Gen III Ls-1 based voertecs so I'll probably stick with the EFI. Do you still have the EFI off of the 97. might have a use for it on another project.