Rocker conversion

Don W.

Don W.

Stab it and steer it
Curiosity question:

I have Vortec heads with pedastal mount rockers. Can those heads be drilled for stud mount rockers? Seems that the pedastal mount bolts are in the correct spot (fulcrum point) so drill and tap seems like a simple job IF, big if, the geometry comes out right.

Just wondering...

Thanks :tup:
 
Quickstop [UK]

Quickstop [UK]

Combating adversyty.
Re: Rocker conversion

What's the difference between pedestal and stud?

My vortec heads were drilled and I have the stud mounted 1.6RRs...

I think you are ok..

Do it :D
 
Don W.

Don W.

Stab it and steer it
Re: Rocker conversion

Wasn't gonna actually do it. Truck is together and runs fine. Just wondering if it could be done.
 
Windedv6

Windedv6

Ty n 10s
Re: Rocker conversion

Keep the pedestals. Better setup than the roller tip rockers. The longer sweep that they put on the the head will open the valve qiucker and run the duration slightly longer than the roller tip rockers. Even if the rollers are 1.6s vs the 1.5 pedestals. Also being a pedestal there is less weight on on the valve train to deal with...(although with our low rpm it doesn't really matter much in the area). I ran the pedestals on my vortecs. Once setup with the corect push rod you never need to readjust them...another plus.

John
 
Don W.

Don W.

Stab it and steer it
Re: Rocker conversion

Good points. I did spend a bunch of time getting them setup correctly with custom push-rods. Didn't know about the other stuff. Thanks!
 
Y

yar

Donating Member
Re: Rocker conversion

Don, take a look at October 2010 HOT ROD, page #128 rocker arm geometry. Good stuff.
Ray
 
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