LS1Tech.com - GM LS Performance Forum

Hi! I looked at a 4th gen LS1 Fbody with under 15k miles today. While overall the car looked super clean, it did appear the rear differential was wet...

when are you going to run the n/a 4.6? You keep ducking and avoiding the question like the little bitch that you are…. Where is said 4.sux? An...

How do you measure the roller sweep pattern when the pushrod length hasn’t been determined yet? If I measure the sweep and need to shim the rocke...

Hello, I haven't been running the car with sensors connected, only start and idle, i'll try that. I have not written anything about the ls3 intake a...

There is absolutely nothing wrong with welding the rod as long as you do it correctly. If you don't trust yourself, take it to a fabrication shop and ...

My new LS3 (700 miles on it) is swapped into a rear engine vintage Porsche. This morning after a good startup and long cruise, I stopped and went into...

they are 1-7/8" headers. I just modified the exhaust this weekend to go 3" the whole way out. My fuel pressure and AFR are staying steady through the ...