JeepGuy24
12-17-2007, 05:22 PM
Hey guys. I'm about to open the engine up to put in matched cam/dizzy gears and timing gears. While I was at it, I thought might be a good time for cam swap. I have a .30 over 360/727 in a Jeep Grand Wagoneer with 3.31 gears. The intake setup is a MegaSquirt controlled GM TBI (EFI) on a Edelbrock Performer intake. The throttlebody has been ported and the intake runners have been cleaned up (just removed flashing and irregularities). I would like great torque from 1500-3500 as this is a DD and can cruise on the highway from 2500-4000.
I've been ready over the past couple days about the Summit K8600, but I'm worried about quality and all the horror stories. The Isky 256/262 and 262 also look interesting and I've heard Isky makes quality stuff. I'm just worried that I'm losing a bit to these Isky cams. The Isky is a little more expensive too, but would be worth it if it doesn't flatten immediately. Let me know what your experience with these have been. Thanks!
Isky 256
1500-4800
202/202 @ .050
256/256 adv duration
.450 / .450 lift
112 lobe seperation
Isky 256/262
AMC 304-360-390-401 V8
.450/.465 Lift
256/262 duration
202/208 duration @.050
110 lobe separation
Isky 262:
RPM-Range (2000-5500)
Valve Lift (.465 .465)
208/208 @ .050
ADV. Duration (262 262)
108 lobe seperation
Summit k8600
RPM Range 1500-4500
472/496 Lift
214/224 @ 0.050
272/282 adv duration
112 lobe seperation
I've been ready over the past couple days about the Summit K8600, but I'm worried about quality and all the horror stories. The Isky 256/262 and 262 also look interesting and I've heard Isky makes quality stuff. I'm just worried that I'm losing a bit to these Isky cams. The Isky is a little more expensive too, but would be worth it if it doesn't flatten immediately. Let me know what your experience with these have been. Thanks!
Isky 256
1500-4800
202/202 @ .050
256/256 adv duration
.450 / .450 lift
112 lobe seperation
Isky 256/262
AMC 304-360-390-401 V8
.450/.465 Lift
256/262 duration
202/208 duration @.050
110 lobe separation
Isky 262:
RPM-Range (2000-5500)
Valve Lift (.465 .465)
208/208 @ .050
ADV. Duration (262 262)
108 lobe seperation
Summit k8600
RPM Range 1500-4500
472/496 Lift
214/224 @ 0.050
272/282 adv duration
112 lobe seperation