How much HP can a LM7 handle?
The LR4, LM7, and L59 have very strong blocks. They can handle over 1,000 hp. using nitrous, a blower, or a turbo.
Is the LM7 good for boost?
This article is focused on the power-adder pathway for upgrading the LM7, whether it will remain in a truck or be swapped into a car. 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.
Can you turbo a stock LS motor?
Yes, you can make big power by throwing boost at a stock LS engine, however, if you want the horsepower party to last for a long time you’ll need to make some changes to the engine.
How much horsepower does a cold air intake add to a 5.3 Vortec?
On average, a cold air intake will add about 11 horsepower to your Silverado. Couple this upgrade with a new mass airflow sensor or a throttle body spacer for even better air regulation. Ideally, a tuner will help your cold air intake run tip-top.
How much hp can a stock 6.0 bottom end handle?
Even a decade ago, before PCM tuning was anywhere near as refined as it is now, several 6.0L owners proved the 6.0L’s bottom end could withstand 700-rwhp. Today, a lot of serious enthusiasts conclude that the 800 hp 6.0 Power Stroke range gets you into unchartered waters with a 6.0L.
What can I do to improve my LM7 engine?
Below are more upgrades that will improve LM7 engine performance. … If you only do one thing to the engine, make it a cam swap. The tiny 191 at .050-inch cam really held these engines back. An LS3 or LS9 cam makes good power, but not where you want it, if the engine remains in a truck.
What’s the price of a LM7 iron block engine?
The LM7 (along with its L59 FlexFuel E85-capable brother) are the Gen. III, 5.3L iron block truck engines you can pick up in wrecking yards for about $600. There were a couple key areas where the LM7 excelled: 1. It makes sense for engine swaps. Fully dressed, it’s a bit lighter than Gen.
Can a LR4 engine be upgraded to a LM7?
The LR4, LM7, and L59 have very strong blocks. They can handle over 1,000 hp. using nitrous, a blower, or a turbo. However, you will need to upgrade the internals to handle that kind of power. The biggest bonus of buying a 4.8L or 5.3L engine is the low cost. They are also easier to find than the higher displacement engines.
Can a LM7 engine be upgraded to 380 hp?
Upgrading the LM7 Fuel System and Tuning The factory LM7 injectors were only rated at 22-25 lbs. and won’t support much more than 380 hp. Plan on upgrading to larger fuel injectors to meet the fuel demands of increased power. Custom tuning will be required to properly adjust the fuel and ignition timing.
