Mbcky2

I just picked up a 5.7 fire hawk and I'm going to start breaking it down and go throught it. It's my first ls build but I will be having some help. That motor stock is about 350 hp and I'm trying to get it 400+ hp. What are some things that would be easy and cheap to get it into the range? Just trying to get an idea here. Thanks

Matt

DavidBoren

Send your heads to advanced induction, get their 219cc high compression program done, and have them spec you a cam for those heads and your goals.

With those heads, a custom grind cam, and some longtubes/ true duals you should be able to reach your goals.

Add an ls6 intake if you can find one for a reasonable price.

Then, it's all about the tune.

96capricemgr

iTrader: (1)

350hp is flywheel stock, most guys modding are going to talk rear wheel HP which is lower than at the crank because of the transmission and axle losses.

The previous poster just gave you a recipe for over 400rwhp.

For 400flywheel hp full exhaust, CAI and a tune should get you there.

KCS

iTrader: (20)

The "free mods" are usually a good start.

Check out this FAQ posted in the Newbie section. It's a little dated but there's good info about what mods to avoid and which ones are worth while.

Mbcky2

Awesome thanks for the advise I will look into all those ideas. I will Keep reading up on these motors. Thanks again

HCI2000SS

iTrader: (2)

Yep to gain 50 hp all you'll need is basic bolt ons like full exhaust air intake and tune

ahritchie

iTrader: (1)

For a Firehawk that already comes with a higher flowing ram air setup with a better flowing lid and 3" SLP cat back exhaust; I would just get a new K&N filter, long tube headers, get a tune, and possibly a LS6 intake.

99Bluz28

iTrader: (35)

Since no one has brought this up; does it need to pass emission testing, what model year is it, and does it have a A4 or M6 transmission ?

Mbcky2

No it's going in a 74 nova so no smog on it. And it didn't come with the tranny (sold) before I got to it.

ahritchie

iTrader: (1)

You're stripping down/parting out a real Firehawk?! For a run of the mill 1974 Nova?!

JayCatsWS6

Please dont ditch that firehawk! those are one of the best looking cars on the road. rebuilt it/throw a t56 in an have some fun..

Mbcky2

I bought the motor out of a wrecked 2001 firehawk. I'm not parting anything out. I'm just putting that motor into a 74 nova.