LT1 life span
#6
Whammer said it best. if we take out all freak issues/problems, and you maintain the whole driveline, 200K is cake. They're essentially a sbc 350 (semi-minor differences), which is one of the most durable engines you can find.
#7
The LT1s tend to leak oil out of the rear of the manifold, so whenever the leak gets bad, that's usually when people rebuild them. In my opinion, a rebuild should be after about 120k, and no later than 140k. The engine parts tend to develop cracks, and it's best to take care of them before they break.
#8
120k? that's a little ridiculous...that's almost like saying a car should be restored after 120k because trannys develop cracks, body panels start flexing, so you should probably take care of them before they break.
just because the manifold starts leaking doesn't make most people rebuild the motor...pretty sure i just pulled my intake and fixed the problem...didn't rebuild anything. i don't understand your thinking here. but to each their own i suppose
just because the manifold starts leaking doesn't make most people rebuild the motor...pretty sure i just pulled my intake and fixed the problem...didn't rebuild anything. i don't understand your thinking here. but to each their own i suppose
#10
yeah there's really no point in pulling the whole engine for a rebuild for a leak that's on top of the motor. i could see it if the car just sits most of its life(like mine) but not for something that gets driven quite regularly