Aluminum engine lid

[res0ca5d]

What's the story. I thought all 2.2 S cars had aluminum engine lids. True or false? I've come across a 71 S with apparently original engine lid that seems to be steel. How does one tell for sure if it's aluminum or steel?
Thanks,
Scott

[Zithlord]

Try a magnet.......

[neilk]

The aluminum one will deflect really easily if you put any pressure on it away from the frame.


Who knows how Porsche worked back then. My car was built in May of '73 and had an aluminum decklid and license panel.

[vricardo]

Recently there was an engine lid on Ebay from a 911E Sportomatic...

[Richard]

My '73S was built in late 1972 with a steel decklid. However, I bought the car in the early 1980's for racing and substituted a (then inexpensive) aluminum decklid because it was lighter. My aluminum decklid is noticably lighter than the steel decklid. ...the aluminum decklid springs open instantly to full open when you pull the latch handle because it is so light. As long as you handle it properly (on the bottom edge) I've had no trouble with it bending or deforming over 25+ years of use. The magnet test mentioned earlier will tell positively whether or not you've got an aluminum decklid but the weight difference is so noticable that I doubt you'll even need to use a magnet.

[johndglynn]

the weight difference is so noticable that I doubt you'll even need to use a magnet.

+1, I can't believe the obvious weight difference even bolted to the car. I have mine off at the minute as the Carrera tail is better for the track, so the ally lid is hanging from the ceiling. Amazing how light it is.