How much lift?
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Freshman User
Joined: Apr 2006
Posts: 49
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From: Pennfield Mi
How much lift?
I've been searching for weeks trying to find the strength of the 5/16 threads in a set of E7/GT-40P heads. I'll be running Comp Cams with .493/.512 lift.
I intend on using roller rockers but I'm trying find anywhere that will tell me if the pedestal threads will handle the lift.
I can see three options:
Use the pedestal mounts,
Buy the screw in 5/16 thread studs and stud mounted arms
or Drill out the threads and re-tap to 3/8 and get the studs and pin them.
I need some opinions and some facts, please!
I intend on using roller rockers but I'm trying find anywhere that will tell me if the pedestal threads will handle the lift.
I can see three options:
Use the pedestal mounts,
Buy the screw in 5/16 thread studs and stud mounted arms
or Drill out the threads and re-tap to 3/8 and get the studs and pin them.
I need some opinions and some facts, please!
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
You won't have a problem with the pedestals until you get into really heavy springs, high lift and high rpms. There are lots of mustangs running around with 500 lift cams and pedistal mount roller rockers(what 5.0HO doesn't have an E303 in it by now
), and how many reports do you see of the pedestal mounts breaking off? I got no hard numbers for you on the actual strength of the pedistal mount.. I don't know if anybody does, but if you are at the point of needing something stronger it's probably more cost effective to just step up to aftermarket heads that already have stud mounts.
), and how many reports do you see of the pedestal mounts breaking off? I got no hard numbers for you on the actual strength of the pedistal mount.. I don't know if anybody does, but if you are at the point of needing something stronger it's probably more cost effective to just step up to aftermarket heads that already have stud mounts.
Thread Starter
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Freshman User
Joined: Apr 2006
Posts: 49
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From: Pennfield Mi
The cam I'm using a certainly not close to high revving. I'm going shopping for roller rockers, If I can muster up the cash. hahahahaha. I'll just go with the pedestal mounts.
Thanks
Thanks
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