Lq? 3? Build
 

I'm gonna call this an lq3 engine build ha. Can't seam to find a shorter term for an iron block 6.0 with l92/ls3 heads so I dubbed it an lq3 lol. Doesn't seam to be a lot of mild builds for these combo of engines on the World Wide Web, or I'm just searching in all the wrong places. Long story short, I built a lq9 to swap my v6 truck with. Got the motor. Freshened it up from top to bottom. Stock rotating assembly with new file fit rings. Gm head gaskets. Had a reputable porter port my 317s. Custom ground lunati .227/.235 .629/.619 113+2 cam. Ls7 lifters. Tbss intake. 90mm tb. Full bolt inside, Yada yada. Truck sounded awesome and ran strong for a week. Then I dropped my daughter off at the baby sitter. Came back out and cranked the truck and everything went south. So happened, had a head crack fill the cylinder with water and destroy everything. Was never able to see what kind of numbers the truck put down or anything. So I decided to start all over. This go round I started with the following combo:
6.0 iron block
Stock rods
Stock crank
Wiseco +4cc dome pistons with valve reliefs
5364 casting heads
Tick performance .227/.244 .615/.604 112+4
L92 intake
1 7/8" headers
Morel 5315 lifters
Compression ratio will be around 11:1 ish

Just waiting for the cam to get here so we can check pushrod lenth and button this one up and get it back in my truck. Was wondering if anyone here has any similar builds? Also what kind of power are you putting down? And just curious as to what you all think mine may put down? Truck is a 99 2wd rcsb 3.73 rear gear and a manual trans

any particular reason you ditched the truck intake? it'll get you better low-mid torque.
or is it just because you've got about the smallest full-size they made & you don't tow or anything?

I thought the truck intake was the L92 intake? The car intake was from a l76 and ls3 maybe? I could be wrong. But I do have the truck intake on my engine. And I don't tow anything. Truck is nothing more than something to have some fun in

The l92 intake is the truck intake, my lqwhatever with l92 heads and intake with a much smaller cam in my lifted 99 put 348 to the wheels with a very shaky dyno print out which i am sure had to do with the ridiculous amount of wheel hop i had at the time....

Very nice. How is it now with the set up that's in your sig?

sorry; my bad. i was thinking L76

Havent had time to retune or dyno yet, biggest difference has been adding the traction bars and correcting my prior ignorance with the rear suspension..aside from finally building the trans myself!! But the btr stage 2 ls3 cam is a vast improvement over the comp xr275hr12 i had in it to begin with!!

Sounds like a fun ride. Are you still at 10:1 compression?

My calculation put it at about 10.5:1, or something close. My block came out of an 04 escalade, at least by vin from the vehicle was supposed to be an lq9, but everything physically leads to being an lq4, i did put flat top pistons in it though, and the heads had been milled a bit.