Need Help With My Engine

[sinclair]

Hey guys my first post.

I own a 2003 4x4 gmc 1500 with the 5.3 engine. im looking for more power! i have a set of gm fastburn heads off a 1994 chevy laying around.. with these fit on my truck? also im wondering what would be better, to get power from heads and cam, or just buy a sts turbo or supercharger. I live where there is lots of snow and harsh conditions and my truck is a daily driver.

Thanks alot.

[2500ak]

I don't think that those heads will fit. Nor will they do anything that the stock vortec heads wouldn't do.

[Zembonez]

...Those heads won't work on the 5.3. I'd supercharge the factory setup (depending on miles), or yank the 5.3 and build it for more power. Either way won't come cheap.

[Schmids5.3l]

In harsh conditions I'd go with a roots super charger or a front mount turbo kit. Those are upwards of 7 grand when everything is said and done. A heads and cam swap can be had for $2,000+. With the right combo that can come out to +100RWHP and still retain good driveability.

 

I should put 300HP to the wheels with a tune & long tube headers with my cam. Stock HP @ the rear wheels would have been around 230 or 240.

[sinclair]

thanks for the help, my best bet would to just do engine mods then... the only reason i mentioned the sts kit is a buddy of mine has it for sale for $1500. im just not sure how it would hold up in mud and snow! any ideas for a heads and cam combo?