A few pics from the m62 i did yesterday.

[Bill R.]

first pic

[Bill R.]

[632 Regal]

always wondered what it looked like under them valve covers. Did you do a bit of cleaning under the intake or is this some freak engine?

[Jeff N.]

The manifold on that car a single path or dual path? Can't recall the terminology but I think you know what I mean. Basically the effective runner length changes based on rpm/load.

Jeff

[632 Regal]

you thinking single or dual plane?

Its basicly a single plane with individual runners for each cylinder, the throttle body opens and its a big hole all the way to the back. The runners seem to be equal length.

The manifold on that car a single path or dual path? Can't recall the terminology but I think you know what I mean. Basically the effective runner length changes based on rpm/load.

Jeff

[Bill R.]

pretty large plenum and the runners kind of wrap around internally so that each runner is longer than you think..

To answer Jeff B. thats just the way the top of the valley cover looked when i got the manifold off on this one.. 150k miles.. the last one i did looked the same way too though. I did clean around the ports before i took a pic though..and blew all the debris out between the edge of the head and manifold before i took the manifold off so that a bunch of crap wouldn't fall into the ports when i pulled the manifold.

The manifold on that car a single path or dual path? Can't recall the terminology but I think you know what I mean. Basically the effective runner length changes based on rpm/load.

Jeff

[GJPinAU]

It would be interesting to see this done with the E39 M5 motor as a comparison??

[Cambridge]

At a quick glance, at first, I thought it was an M60. But there are even some visual differences when you look more carefully. Very interesting! Thanks for posting!

[infinity5]

At a quick glance, at first, I thought it was an M60. But there are even some visual differences when you look more carefully. Very interesting! Thanks for posting!

They do look very similar, it must be becusae the m60 was so well designed it was hard to improve on haha

[Bimmer Nut Ed]

What did you do to this, replace the oil separator in the front of that first pic? If that was the issue, was there much oil in the manifold? On mine, it was filthy in there!

Are you going to replace the seals or gaskets associated with the valley pan? That's one thing I forgot to do, and now the car seems to loose coolant. Anyway, great pics. Thanks Bill R.