LS1 intake

[Silverado05]

Whats the difference from an LS1 intake manifold and a 5.3 intake manifold?

[ff_jeff]

Whats the difference from an LS1 intake manifold and a 5.3 intake manifold?

The height. A pre- 2001 LS1 intake flows the same as the truck ones. But a 2002+ LS1 flows much better. Also known as the LS6 intake.

[Silverado05]

Will it fit my truck?

[974door]

I have a 6.0l out of a 02' truck. Will an LS1 intake fit? If so, what year and mods does it take to do so? Sorry to thread jack.

[RedHeartbeat]

all years of ls1, ls2 and ls6 intakes will fit your engine.

[974door]

Thanks. Is it s good sugestion to do this? Will my throttle body and other parts fit it?

[randomhero]

Why would you want to swap to an ls1(I don't mean that rude).

I have seen 2 different flow tests of the stock ls1, ls6, truck, and fast intakes.

Every graph I saw the truck intake out flowed the stock ls1 intake until way up top into the rpm range(past 5000 rpm).

The truck intake is taller like Jeff said. That's a good reason why it flows better at lower RPM. I haven't quite figured out why it flows better at higher rpm yet.

[974door]

I figured it was better. I am new to this type of engine. Thanks for the info. I'll stick with what I have.

[clementeunknown]

I think there's a write-up on that in this forum. The year you want is from '01 to '04. I don't think it's really worth the swap unless your planning on spending a lot of time in the higher RPMs IMO.

[RedHeartbeat]

If I were to pay money to update my intake I would buy a new Weiand composite intake. Makes more power than any other out there that I've heard of and its reasonably priced unlike the FAST intake.