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Re: Six Pack Rocker Arms
[Re: JohnRR]
#1094778
10/15/11 11:22 PM
10/15/11 11:22 PM
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Joined: Jul 2008
Posts: 205
Martinsville, VA
440child
OP
enthusiast
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OP
enthusiast
Joined: Jul 2008
Posts: 205
Martinsville, VA
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Quote:
A set of crane ductiles would work with only minimal clearancing for the rockers needed .
What heads are you going to run ?
Probably some 452's. Where did you have to clearance those
rockers?
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Re: Six Pack Rocker Arms
[Re: 440child]
#1094779
10/16/11 09:11 AM
10/16/11 09:11 AM
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Joined: Jan 2003
Posts: 9,436
Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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Quote:
Quote:
A set of crane ductiles would work with only minimal clearancing for the rockers needed .
What heads are you going to run ?
Probably some 452's. Where did you have to clearance those
rockers?
This works well and you don't have to move the baffels.
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Re: Six Pack Rocker Arms
[Re: 62maxwgn]
#1094780
10/16/11 09:24 AM
10/16/11 09:24 AM
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Joined: Jan 2003
Posts: 75,326
A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,326
A gulag near you.
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Quote:
Quote:
Quote:
A set of crane ductiles would work with only minimal clearancing for the rockers needed .
What heads are you going to run ?
Probably some 452's. Where did you have to clearance those
rockers?
This works well and you don't have to move the baffels.
That's all the needs to be done, nothing needs to be done to the rockers just drill he baffles to clear the adjusters.
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Re: Six Pack Rocker Arms
[Re: ahy]
#1094781
10/16/11 09:37 AM
10/16/11 09:37 AM
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Joined: Dec 2008
Posts: 176
Rome, GA
GTXX
member
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member
Joined: Dec 2008
Posts: 176
Rome, GA
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Quote:
The spring load required for .55 lift will likely push a pushrod through the stamped rocker. Over about .5 lift, the OE stamped get real risky. You need a better rocker.
 saw it happen with a 292/509, replaced with Crane irons and never a problem after that.
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Re: Six Pack Rocker Arms
[Re: 62maxwgn]
#1094782
10/16/11 07:47 PM
10/16/11 07:47 PM
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Joined: Jul 2008
Posts: 205
Martinsville, VA
440child
OP
enthusiast
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OP
enthusiast
Joined: Jul 2008
Posts: 205
Martinsville, VA
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Quote:
Quote:
Quote:
A set of crane ductiles would work with only minimal clearancing for the rockers needed .
What heads are you going to run ?
Probably some 452's. Where did you have to clearance those
rockers?
This works well and you don't have to move the baffels.
That's the ticket! I always wondered what was the interference point between the rocker & the v/c.
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Re: Six Pack Rocker Arms
[Re: JohnRR]
#1094784
10/17/11 01:04 PM
10/17/11 01:04 PM
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Joined: Jul 2008
Posts: 205
Martinsville, VA
440child
OP
enthusiast
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OP
enthusiast
Joined: Jul 2008
Posts: 205
Martinsville, VA
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Quote:
Anyone have a picture of the inside of an original max wedge valve cover considering they run a rocker that is very similar to the crane/isky ductiles ?
That's a great idea concerning the Max Wedge valve covers. I googled it and found that Mancini Racing sells the reproductions and the sales rep. said they would fit a 440. They don't have pictures on the website so that would really help.
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Re: Six Pack Rocker Arms
[Re: JohnRR]
#1094785
10/17/11 04:14 PM
10/17/11 04:14 PM
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Joined: Jan 2003
Posts: 9,436
Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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Quote:
Anyone have a picture of the inside of an original max wedge valve cover considering they run a rocker that is very similar to the crane/isky ductiles ?
Don't really want to take one back off,two weeks ago I could have helped.If I remember correctly there is about 1/4" difference in the height of the baffles.Also,the original Max Wedge rockers were not a true 1.5 ratio,more like 1.4,don't know if that would have any bearing on clearance. 
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Re: Six Pack Rocker Arms
[Re: 70Sbird]
#1094788
10/18/11 12:15 PM
10/18/11 12:15 PM
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Joined: Jan 2003
Posts: 75,326
A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,326
A gulag near you.
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Quote:
just one more note on the MP stamped rockers, I bought a set this year, MP#P4529743 for my 440 stroker, power on the dyno was low so we measured true valve lift, The rockers were actually closer to a 1.3:1 ratio, making what should have been a warm street cam act like a grain truck/RV cam, just something to be aware of and check!
YIKES ... but then again yet another QUALITY part from MP ... 
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Re: Six Pack Rocker Arms
[Re: Mr.Yuck]
#1094790
10/18/11 12:31 PM
10/18/11 12:31 PM
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Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
DPelletier
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
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I have crane adjustable roller rockers under my stock '70 stamped valve covers.... Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: Six Pack Rocker Arms
[Re: Mr.Yuck]
#1094791
10/18/11 01:04 PM
10/18/11 01:04 PM
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Joined: Jan 2003
Posts: 75,326
A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,326
A gulag near you.
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Quote:
no such thing as a six-pack rocker arm.
The rocker arms used on the 69 440 six pack were HD units and referred to ... I think ... as 6 pak rocker arms ...
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Re: Six Pack Rocker Arms
[Re: JohnRR]
#1094792
10/18/11 01:47 PM
10/18/11 01:47 PM
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Joined: Jan 2003
Posts: 9,436
Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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Quote:
Quote:
no such thing as a six-pack rocker arm.
The rocker arms used on the 69 440 six pack were HD units and referred to ... I think ... as 6 pak rocker arms ...
You don't have to think John! 
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Re: Six Pack Rocker Arms
[Re: DPelletier]
#1094793
10/18/11 02:00 PM
10/18/11 02:00 PM
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Joined: Jan 2003
Posts: 9,436
Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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Quote:
I have crane adjustable roller rockers under my stock '70 stamped valve covers....
Dave
Dave,I have Isky rockers and I had to modify the baffles for clearance as shown above,not for the adjuster but the other end.Guess it depends on the rocker design.
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Re: Six Pack Rocker Arms
[Re: 62maxwgn]
#1094795
10/18/11 07:41 PM
10/18/11 07:41 PM
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Joined: Jan 2003
Posts: 75,326
A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,326
A gulag near you.
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Quote:
Quote:
I have crane adjustable roller rockers under my stock '70 stamped valve covers....
Dave
Dave,I have Isky rockers and I had to modify the baffles for clearance as shown above,not for the adjuster but the other end.Guess it depends on the rocker design.
I would have thought that clearance was for the adjuster , I learn something new from you Bill all the time ...
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