How much HP does a LQ4 have?
300-325 hp
There are two 6.0L iron-block engines out there, the LQ9 (345 hp) and the LQ4 (300-325 hp).
How much horsepower does a LQ4 6.0 make?
LS Family: Gen. 3, 6.0L, Iron Block, Truck Engines
Performance Specifications | |
---|---|
Compression Ratio | 9.4:1 |
Horsepower Rating | 300-330 hp |
Torque Rating | 360-370 ft./lbs. |
Is a LQ4 a good engine?
These motors are capable of making a lot of horsepower, and respond well to upgrades like turbos, superchargers, high-flow cylinder heads, intake systems, cams, and nitrous oxide.
Which is better LQ4 or LQ9?
The ONLY difference between an LQ4 and LQ9 is the piston!
The LQ4 piston is dished where as the LQ9 is a flat-top increasing compression to 10:1, and HP to 345 factory. The LQ9 is a limited production engine and VERY desirable as it is the HO 6.0L and comes with a premium price.
Is the LQ4 an iron block?
There are several iron-block 6.0 liter LS engines from the factory. Most notable are the LQ4 and LQ9 Vortec, used in the GM’s 1500 and 2500HD series trucks (Gen III/IV LS truck engines are all Vortec).
Are all LQ4 engines the same?
Externally, the engines are identical. The only differences were: The LQ4 came with dished pistons. The LQ9 came with flat top pistons.
What trucks came with LQ4?
The LQ4 is found in GMC Yukons and Sierras, Hummer H2s, and Chevy Suburbans, Silverados and Expresses. The LQ9 is the high-output version of the LQ4, originally designed for Cadillac Escalade models. It has flat-top pistons to increase compression ratio to 10:1. It was also used in the Silverado SS and Denali models.
What did the LQ4 engine come in?
The LQ4 was introduced in 1999 as one of the first LS truck engines. It was available in GM pickups, vans, and SUVs until 2007. The LQ4 was also known as the Vortec 6000.
What heads came on LQ4?
The 1999-2000 LQ4 had cast iron cylinder heads. All others had aluminum heads.
Is a LQ4 an LS2?
Yes an no they are the same bore and stroke but have some difference. Namely the pistons and compression ratio. The LQ4 has dished pistons and runs lower CR.
What did the 6.0 LQ4 come in?