A quick Google search came up with this site
http://www.fullthrottlev6.com/forums/sh ... hp?t=33452
It's a list of 60* v6 cams.
Stock 3.4
195/201 .390"/.410" 109°
Comp Cams
High Energy 240H (16-115-4)
192/200 .390"/.390" 108°
High Energy 252H (16-232-4)
206/206 .425"/.425" 110°
High Energy 260H (16-233-4)
212/212 .440"/.440" 110°
Crane Cams
PowerMax 2020 (254112)
198/204 .401"/.423" 104°
PowerMax 2030 (254122)
204/214 .423"/.423" 109°
H-260-2 (253901)
204/216 .427"/.454" 112°
H-272-2 (253941)
216/228 .454"/.480" 112°
Crower Cams
Mileage Compu-Pro Lv1 (03040)
182/192 .386"/.387" 114°
Mileage Beast Lv2 (03002)
194/202 .390"/.410" 109°
Baja Beast Lv3 (03015)
204/214 .422"/.444" 112°
Ultra Compu-Pro Lv4 (03043)
212/218 .435"/.449" 112°
Hi-Draulic Hauler Lv4 (03050)
226/234 .470"/.492" 108°
Edelbrock
Performer-Plus (3790)
204/214 .420"/.442" 112°
GM Performance Parts
12363220
204/216 .427"/.454" 108°
12364059
204/216 .427"/.454" 112°
Lunati
High Efficiency (06312)
195/205 .405"/.427" 112°
Melling
Select Performance (MTC-5)
204/214 .420"/.443" 112°
Schneider
252-56H (02371)
194/204 .390"/.410" 110°
256H (02370)
204/204 .420"/.420" 110°
256-2H (02372)
204/214 .420"/.440" 112°
131H (02375)
208/208 .420"/.420" 110°
135H (02373)
218/218 .460"/.460" 110°
270-84H (02374)
214/224 .440"/.460" 112°
Solid or Solid Roller cams also available
60° 3100/3400/3500 FWD V6 Camshafts
(Roller Hydraulic Lifter, 1.6 Rocker)
Stock 3x00
197/197 .436"/.436" 112°
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Check out the Crower Hydraulic Hauler.
It's got a bit longer duration than the 272, and seems to have the highest lift of any off-the-shelf hydraulic.
When I started hearing about people wiping out 272s in a few thousand miles (apparently not as widespread as I first thought) I was tempted to go with that one.
Go to
http://www.crower.com/pdf/2-52.pdf
Scroll to page 18 or thereabouts.
They also recommend a spring kit that actually seems to be pretty straightforward. (Stock spring diameter, etc.) I'm not sure what you'd have to do to make it work with the aluminum heads, however.
To anyone who cares...
It's interesting that the stock iron head 3.4 has a "staggered" cam profile (exhaust has higher lift than intake), while the 3x00 seems to have a "square" profile.
Do the aluminum heads flow that much better in the exhaust ports, compared to the intakes?