While the 6. But how do you tell your LM7 from your LQ4? One reason iron LS blocks are so popular is their amazing availability. Also known as the Vortec , it is an iron truck motor designed to replace the cube L The stroke is 9mm over the Vortec and from that point on there are lots of differences. The L33 is also known as the Vortec HO. It is an aluminium-block variant of the iron LM7 with flat-top pistons from the 4.
The cylinder heads are reportedly the same casting as the LS6 and LS2 heads, minus hollow exhaust valves and high-performance valve springs. It makes hp kW in form, hp kW in and hp kW in You can ID the 4.
It has flat-top pistons to increase compression ratio to It was also used in the Silverado SS and Denali models. These engines are highly popular given deep-breathing LS3-style heads can be fitted for bulk turbocharged power.
Above: This LQ4 6. They come in versions for Gen. Daniel, it is likely a gen. No plugs on the front cover. I have a HD 6. Will my 03 aluminum heads bolt up? What gasket kit do I use to if I can use heads? Wanting to do cam swap and possibly LS3 heads.
But I use as my daily driver and pull a inclosed trailer on occasions. What do you prefer on cam size and should I use truck flow for heads n cam or do you have any suggestions? Check out Vinci cams, their trucker cam is great, and I plan on upgrading my cam and springs with their parts soon on my 03 Denali. What do you prefer on cam size and should I use trick flow for heads n cam or do you have any suggestions? I swapped from 5. Long tube headers with 3 inch mandrel bend back cat.
New rockers and push rods new rod and main bearings. Everyday driver averaging I would like more power however realize trans will need beefed up. Looking to get whp through a t In a c10 pickup and an lq4. Thank you for any input. To chime back in, the 6 liter in the 05 model truck was a gen 4 style. It had floating wristpins, the better rods. However, every main bearing in it was scarred and no oil pressure. Somebody probably ran it without oil. I sold the motor and truck.
Now planning on installing a 99 model 6 liter in a 69 Corvette. Was looking at cam ideas, and stall options for the 4L80e. Those converters are expensive! I have a LQ4 that I would like to add a little power and cleaner look for the injection. There are some aftermarket manifolds that are high rise and will clear the accessory drive but then you run into hood issues. Some just cut us the factory power steering bracket to clear. A little modding and it can be done.
Aftermarket tensioners and pulleys may be necessary. My pedal will not communicate with the tbody. Things are going good. What is the best rad design to use for my car , place it where the old rad was or put in in front of where the old rad was and add electric fans.
That is the route I would go. And if you want to save a few more hp, an electric water pump is good for a few more ponies. Pingback: LQ4 6.
Has anyone ever installed head on the LQ4. I have a set I can install. But my plan is cam swap with truck cam , comp springs ,lifters tray, chain ,pump. And I fear above a 93 octane. Even though I have HP tuner. Any advice greatly appreciated. I suggest starting there. Will sense i will be diving into motor what can I do for a little more power and still pass smog.
Thanks for your question. I have a Sierra LQ4 with k miles and a knock. A rotating LS assembly kit from Summit Racing would be my recommendation. Build a stroked version of what you have now and it will be bullet proof using forged internals. A good cam that stays below 0. Pingback: Extra Stuffing! These stroked solutions recommended do not seem to be conducive to proper ring pack distancing from the crown of the piston.
Please point me in the right direction if I am wrong. Have a Yukon xl Denali with the LQ4 6. Like what factory gm heads, intake, etc will swap directly over with very little no modifications? I want to send out a big thank you to Brian for this information. After a custom tune and an exhaust repair, the increase in hp is noticeable. I also am former USAF and again, thank you. Your email address will not be published.
Your Website. Save my name, email, and website in this browser for the next time I comment. This site uses Akismet to reduce spam. Visual identification between the two engines is very difficult, since the primary difference is the pistons and wrist pin rods, which are part of the engine's rotating assembly and thus enclosed in the engine block.
The LQ9 was replaced by the L76, which incorporates an all-aluminum block in addition to variable valve timing. Based near Chicago, Sameca Pandova has been writing since and now contributes to various websites. He is an attorney with experience in health care, family and criminal prosecution issues.
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