BB Mopar Head ID

[Steve Stasko]

The Stage IV was an over the counter replacement head Direct Connection sold in the late 1970-s, through the early 80's. They are standard port window, not Max Wedge port window, and they require a special offset intake rocker (more than stock, but not as much as Max Wedge). I believe the offset is .100 more than stock. They are slightly better than a "452" casting, but not as good as a Max Wedge head out of the box.

[Paul Precht]

Originally Posted by Steve Stasko

The Stage IV was an over the counter replacement head Direct Connection sold in the late 1970-s, through the early 80's. They are standard port window, not Max Wedge port window, and they require a special offset intake rocker (more than stock, but not as much as Max Wedge). I believe the offset is .100 more than stock. They are slightly better than a "452" casting, but not as good as a Max Wedge head out of the box.

I've never known a Max head to require an offset rocker.

[Steve Stasko]

Originally Posted by Paul Precht

I've never known a Max head to require an offset rocker.

You're correct...I'm thinking of the Stage VI MW which uses the offset rocker.

[mnmaxwedge]

Originally Posted by Paul Precht

I've never known a Max head to require an offset rocker.

Max wedge heads absolutely require an offset rocker if you are running an aftermarket rocker like a T&D or Jesel. The OE rockers have an angled tip and don't require it. The aluminum rockers do not. For that matter an ordinary RB/440 head also requires an offset exhaust rocker.