5.3 vs ls1
Thread Starter
Launching!
Joined: Dec 2008
Posts: 206
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From: Hammond,La
5.3 vs ls1 i started building a 5.3 that was given to me its out of a 05 silverado. i also have a extra set of ls1 heads laying around. my question is right from the start the ls1 heads flow better and i know to make 5.3 compression with a ls1 head they need to be milled around 30 to 35. ive been told both that im wasting my time milling the ls1 heads thats its well more worth it to put the ls1 valves in the 5.3's.
BTW its going in a very light car, around 2700 lbs with me and the 5.3 in it. im planning on the 224 cam ls6 intake and a 150 shot.
BTW its going in a very light car, around 2700 lbs with me and the 5.3 in it. im planning on the 224 cam ls6 intake and a 150 shot.
i started building a 5.3 that was given to me its out of a 05 silverado. i also have a extra set of ls1 heads laying around. my question is right from the start the ls1 heads flow better and i know to make 5.3 compression with a ls1 head they need to be milled around 30 to 35. ive been told both that im wasting my time milling the ls1 heads thats its well more worth it to put the ls1 valves in the 5.3's.
BTW its going in a very light car, around 2700 lbs with me and the 5.3 in it. im planning on the 224 cam ls6 intake and a 150 shot.
BTW its going in a very light car, around 2700 lbs with me and the 5.3 in it. im planning on the 224 cam ls6 intake and a 150 shot.
Im pretty sure they have similar flow numbers, but dont hold me to that.
