Im planning on doing an lt1 swap in my 94 camaro. Im going to look at an lt1 tomorrow but the guy claims he doesn't know what car it came out of. I need to make sure it came from a z28. I know the roadmaster had iron heads, but that was the only difference I know of. Does anyone know of a tell tale difference between the z28 lt1 and the roadmaster lt1? Vin digit, pulley location, intake, serial number, etc?

Thanks guys, I really appreciate it.

Also I apologize if this has been answered a million times, I searched and read up a little but, but couldn't find a for sure difference.

 

iron heads. ummm so is this a lt1 into a v6 camaro? if so you will need to change much more than the motor.

 

Yes I'm aware. I got a z28 rear end, 1 piece drive shaft, 700r4 trans, computer, harness, heater core, high flow water pump, radiator, kmember, and new shocks and struts. I'm buying the motor itself tomorrow. So if the roadmaster had iron heads iron is magnetic. And if the z28 had aluminum heads a magnet shouldn't stick it its a z28 motor and will stick if its a roadmaster motor. Correct?

 

Yes I'm aware. I got a z28 rear end, 1 piece drive shaft, 700r4 trans, computer, harness, heater core, high flow water pump, radiator, kmember, and new shocks and struts. I'm buying the motor itself tomorrow. So if the roadmaster had iron heads iron is magnetic. And if the z28 had aluminum heads a magnet shouldn't stick it its a z28 motor and will stick if its a roadmaster motor. Correct?

 

sounds like the plan to me. you can almost always tell just by looking at em. lol, one to many your starting to repeat yourself.

 

Yeah that's what I'm trying to distinguish between them. The iron will probly be more dull and rusty around the heads vs a z28 lt1?

 

Yeah that's what I'm trying to distinguish between them. The iron will probly be more dull and rusty around the heads vs a z28 lt1?

 

iron heads will look black aluminum will look silver but yes a magnet wont stick to the Z28 heads and will to the iron heads

 

Alright thanks guys, Im sure I'll be posting more soon for help on the swap.

 

If this is of any help. The iron heads used in the Roadmaster engine actually flow better than the ones used on the aluminum LT1 as they were designed later. However, the more noticeable difference comes from the camshaft. The iron engine camshaft produces more low end torque in order to get the 5000 lb Roadmaster moving, but produces less HP. Other differences are in the exhaust manifolds, water pump inlet and outlet pipes.