I've noticed lately some, not all parts are discontinued at dealers for LT1s.

A while ago I needed an exhaust manifold, luckily found an aftermarket one.

Latest part to give me trouble is oil coolant line, hole right at flange, have it fixed temporarily, but this part is now discontinued.

LT1 do not last at junk yards so that option is out.

How can GM discontinue hard parts for our cars when they know plenty of LT1's out there still?

Anyone know a good aftermarket compnay that has a steady suppliy of engine/hard parts for our cars?

Thanks

 

Traditionally, after 10 years, parts that don't fit newer cars begin to be phased out. That's just the way it is.

 

Something like an exhaust manifold should be easilly found by posting on the "parts wanted" forum. There are thousands of people who have remove the stock manifolds. I'm surprised anyone makes an aftermarket exhaust manifold. Same with the oil cooler piping.... many people remove the oil coolers. "Parts wanted" is probably one of the best places to try for parts in general.

Then there are a number of junk yards that specialize in 4th Gen F-body parts.