ls1 5.7 build
Thread Starter
1st Gear
Joined: Feb 2023
Posts: 1
Likes: 0
ls1 5.7 build
I was wondering what I would need to do to make 500 to 550 wheel horsepower with my 5.7 ls1, I was going to get a top end kit for 515hp but its on backorder until June and Id rather go for 550hp not 515hp. Any advice is great, thanks for the help!
Melting Slicks
Joined: Jul 2004
Posts: 2,446
Likes: 313
From: Scottsdale AZ
I think it all about the heads and cam selection. Build a precise and excellent bottom end. Buy excellent heads and choose a cam that will rev to what you need for 550 hp. Ther should be lots of videos and articles to meet your specs.
Instructor
Joined: Feb 2024
Posts: 117
Likes: 19
From: New Jersey
Forced induction is the easiest way. If you want to go NA then a good set of after market heads,a 23x/23x 0.6xx/0.6xx cam with matching springs/rods and upgraded rockers/lifters should get you close.
Burning Brakes
Joined: Jun 2022
Posts: 757
Likes: 365
Not going to make 550 NA with the stock displacement. For anything you can drive on the street that is 400-427ci territory.
5.7 would need good ported heads, cam, long tubes , fast intake and TB and a good tune 440-470 max
A&A supercharger kit will make that number, but there isn’t a top end kit someone is selling snake oil.
