Picked up some long tube headers from a g body stock car

Any advise on putting them in? I really dont want to have to lift the engine, but I may have to. Has anyone got them in from the bottom before?

 

are u tryna put em in a G body or W body?

 

G body lol. Never mind I went in from the bottom and they are mounted. So tired.

 

just saw this. yeah the bottoms the only way to get them in there. that is if the motors already in the car. the starter is usually the issue. you might want to get a heat shield for the starter if they sit extremely close. heat soak sometimes becomes an issue. what diameter tubing are they?