Is the LM4 a good motor?
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. [NOTE: Looking to upgrade your LM4?
How much power can a LM4 handle?
Although an iron block 5.3L will handle more power, the LM4 can still support over 850 whp.
What is a 5.3 engine made of?
The 5.3L V8 engine is made of cast aluminum and has an overhead valve, two valves per cylinder and variable valve timing. The ignition system has low-resistance spark plug wires, platinum-tipped spark plugs and a coil-near-plug.
Which is better LM7 or L33?
The L33 was essentially a high-lift version of the LM7 with a few extra degrees of duration. In terms of power, the L33 offered additional power over the LM7 cam but did not increase power as much as the LQ9. As expected, there was no change to idle vacuum, and cranking compression was within a few psi of the LM7.
What did the all aluminum 5.3 come in?
The L33 was introduced in 2005 as the “High Performance” 5.3L engine. It was only available in the 1/2 ton, 4WD, extended cab Silverado and Sierra until 2007.
What Chevy engines have aluminum blocks?
The LS2 and L76 are noteworthy in that they are both Gen IV 6.0L aluminum block engines, and that they came from the factory in both cars and trucks. Each came with different accessory drives, intake manifolds, and oil pans.
What did the aluminum 5.3 come in?
The L33 was introduced in 2005 as the “High Performance” 5.3L engine. It was only available in the 1/2 ton, 4WD, extended cab Silverado and Sierra until 2007. The L33 was known as the Vortec 5300 H.O.
What is an LH6 engine?
The LH6 engine is a 5.3L Gen. IV aluminum engine that replaced the LM4 in 2005. It was the first Gen. IV LS truck engine and offered Active Fuel Management (AFM). The LH6 was available in mid-size SUVs until 2009, and in GM pickups from 2007-09.
Is the 5.3 an LS motor?
The cheapest of the LS engine family is the 5.3L truck engine since it came in most of the trucks and SUVs that Chevrolet has produced.
Is an LM7 an LS motor?
The LM7 is one of the most popular LS engines for several reasons: With iron block strength, it is a great choice for boost or nitrous applications. GM made a bazillion of them over eight years.
What did L33 come in?