carbed 5.3 upgrades?
#1
Teching In
Thread Starter
Join Date: Mar 2011
Location: Citrus Heights,CA
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
carbed 5.3 upgrades?
New here and still learning about these engines. I`m picking up a 5.3 tonight for my 65 el camino. I seem to remember they are rated close to 300hp stock. What can I do to pump it up? I will definaly change cams and probably send the heads out to be ported but any suggestions? The car is pretty much planned to be a driver but if I could get it in the mid low 12`s I won`t complain. Also, whats the best/cheapest/easiest set up to convert it to carb? I know MSD has a set up as well as edelbrock. I still have alot of learning to do with these LSX engines. Thanks.
#4
On The Tree
Join Date: Nov 2006
Location: Cincinnati OH
Posts: 156
Likes: 0
Received 0 Likes
on
0 Posts
Ls engines are still push rod v8s. Anything that you would do to any other v8 you can do to the same effect on an ls engine.
The biggest difference between the LS and other generations of chevy v8 is that the factory head castings are pretty good as opposed to being pretty bad.
The biggest difference between the LS and other generations of chevy v8 is that the factory head castings are pretty good as opposed to being pretty bad.
#5
Teching In
Thread Starter
Join Date: Mar 2011
Location: Citrus Heights,CA
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
Ls engines are still push rod v8s. Anything that you would do to any other v8 you can do to the same effect on an ls engine.
The biggest difference between the LS and other generations of chevy v8 is that the factory head castings are pretty good as opposed to being pretty bad.
The biggest difference between the LS and other generations of chevy v8 is that the factory head castings are pretty good as opposed to being pretty bad.
#6
TECH Resident
https://ls1tech.com/forums/generatio...am-change.html
#7
Teching In
Thread Starter
Join Date: Mar 2011
Location: Citrus Heights,CA
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
I would recommend a custom cam spec from Patrick G or Predator Z to help get the most torque out of the 5.3, to help get the elky moving. I polished my own heads (ports, combustion chambers) and did not have them enlarged because of concerns about reducing velocity which tends to translate to torque. A machine shop did do some bowl blending for me though and my valves are only .02 larger. Also, you will want a 3000+ stall if you're using an auto. Most guys will tell you this is not enough but I wasn't brave enough to go much more on mine (3200).
https://ls1tech.com/forums/generatio...am-change.html
https://ls1tech.com/forums/generatio...am-change.html