Lq9 with ls3 heads cam recommendation. Jan 8, 2026 · In those same tests Holdener ran the Gen 3 and Gen 4 6. Feb 13, 2018 · See a complete blueprint for upgrading a GM LQ4/LQ9, from basic bolt-ons, to top-end upgrades, internal improvements, and power adders. 575/. I would like to see a solid 500hp at the flywheel, but not looking for anything too extravagant (driveability is still key). 0 and ls3 heads. The engine is otherwise planned to be stock-ish. 0L that I will swap in over next winter. I've seen recommendations for the Comp Cams XER 232/240 112+4 LSA or 236/244 112+4 LSA Mar 22, 2021 · LQ9 6. However, the LS3 had a 4. Backhalfs 26-27 mph. So I have the block all clean and am ready to put in new cam bearings, so I need a cam. 030 with Summit forged flattops ( wiseco). Dec 28, 2017 · INTERNAL ENGINE MODIFICATIONS - LQ9 + LS3 heads camshaft options? - Decided to take the plunge into the square port realm. 575 220/224 112 LSA cam 1-7/8" headers w/ 3" mandrel exhaust 3. 615 lift 112 lsa not that I don't trust them but I can hardly find this cam in the set up that I'm running I see this cam in Mar 20, 2025 · For reference the caprice I have comes stock with a 6. Mine is bored . Yea, good mph out of my car but it is little C4 Corvette and has good aero. Any concern with my 3. Heads are all stock without any porting 19258770 LS3 6. 0 engines without boost (but with the heads, cam, and intake) and made just over 500 hp. 54 gear? The cams this size recommend 3. The LS3 heads will fit on any LS block with a minimum 4. 2L—Corvette Gen IV V-8 19258768 LS376/480—EFI LS3 Gen IV V-8 A popular upgrade to the LQ4 and LQ9 is to install a set of LS3 heads and intake. Basically bored with my current set up and looking for a little bit more. Aug 8, 2013 · In this section, we are featuring a LS Cam Test Comparison in hopes to bring answers to many common questions frequently asked by LS enthusiasts. 73s. . Apr 14, 2010 · Anyone have any cam recommendations for an LQ9 with LS3 heads and intake? This is going into a 70' Chevelle with a (forthcoming) T56. I have it narrowed down to two. Plus I am a good 500-1000 lbs lighter than those cars. 064 OD Makes about 420-430whp currently It isn't a dig car. 641. We would like to show you a description here but the site won’t allow us. I mainly roll because I am not big on trashing u-joints, driveshafts and these brittle D44 IRS rear ends. Do not use the Holley 2x4 intake the High Rise won’t fit under the hood and the Mid Rise kills low end torque due to very short runners Use an LS6 intake or better yet the MSD Atomic intake Jan 27, 2015 · With you current cam you might also get into PTV clearance issues with the LS3 heads so you might have to fly cut the pistons or go with a rectangle port cam. 7" tire Face plated TKO 600 5 speed . 065 in. Apr 19, 2021 · I'm currently building an LQ9 6. Called tsp they told me to run the 231/236 . I figure a 25. I posted a question about my LQ9 build but placed it in Internal Engine forum by accident (noob!). I know the 317 heads can handle more cam then the stock stick but has anyone Mar 26, 2021 · They said 460-480 whp excluding the rod mod. 0 with gen 4 internals on trick flow gen x Oct 7, 2014 · vinniekq2 said: for comparison, the LS-3 with GM hotcam and minor work to heads makes 480 real horse power. 0 SBE 821 LS3 heads Stock LS3 intake/inj w/ 92mm TB . Apr 6, 2025 · Generation III Internal Engine - 243 cylinder heads on a gen 3 lq9 - So I'm going to install new heads with a truck cam from btr, curious if you were to buy a set of 243s (or better choice?) Oct 9, 2012 · I know the LS3 heads are a great improvement cheap head for the LQ-9's but if you consider all the parts along with the intake you are looking around $1,500 - $1,800. 525 lift. Jan 23, 2013 · LQ9 243/799 vs 821/823 heads? I sort of asked this question in the wrong forum. bore. 54 gear 25. This will have stock 243 heads 11:1 compression and a FAST 102 intake with a 90mm throttle body. 000 in. Looking to keep good manners - as this won't be raced much, if ever. This means that the valves will be closer to the cylinder walls. 0 horsepower numbers. I would use longer duration shorter lift cam similar to the LS3 hot cams. Sep 29, 2010 · The new L92 Heads came in today along with the Patriot Extreme . 6-27" tire is a wash. Since I am already trying to get all of the other parts to get my 68 Camaro to run with this motor I'd rather spend the money on getting it to run 1st. . 7" vs an LS3 Corvette or Camaro with 26. They have 2 or 3cc valve reliefs. No need to do anything but maybe trunnion upgrade and springs|I’m running a gen 3 6. (Aren't we all?) As of right now, my plan is: LQ9 Jun 4, 2015 · Generation IV Internal Engine - trying to decide on cam for my lq9 ls3 top end set up - I have a 2003 lq9 installing 823 ls3 heads and intake . I love the Sloppy Stage 2 cam from Elgin. QUOTE] The OEM LS3, 480hp is an LS3 with the Hotcam, and the 525hp crate is a production LS3 with the ASA raceing cam. Anyways, I'm looking for recommendations for new heads, and I'm trying to keep this budget friendly. Dec 7, 2017 · Stock LQ9 With the pistons in the LQ9 be careful when selecting a cam to make sure you have piston to valve clearance. 660 lift spring kit and The Stainless intake and exhaust valves. 0L displacement and use of the LS3-style cylinder heads, so we replaced the VVT with a factory LQ9 cam, then added an LS3 intake manifold. Less space around the valve can limit the air flow. Adding boost to that starts you down the path of better rods, pistons, and more to get reliable 6. Oct 20, 2020 · For our test, we were only interested in the 6. vwsl wwqr xbbta kufklt bqoo gnpxce qczgpn hhceslbb qknmyn avknh