Push Rods
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From: Houston TX
Push Rods
does an '89 roller 305 come with Self aligning rockers ?? if so, are the stock pushrods hardened ?? also,,... do roller rockers make that much of a difference over roller tip, and stamped for that matter... what sort of difference??
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Last edited by txhotRS; Apr 25, 2003 at 03:07 PM.
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From: Austin
Car: 82 Z-28
Engine: 383 TPI
Transmission: 700R4
I believe the rockers are self aligning. To be sure pull a valve cover and check them.
If you do have self aligning rockers, I doubt if the stock pushrods are hardened.
Full roller rockers have a lot less friction. Generate a lot less heat and provide more accurate valve actuation. They will drop oil temp 30 degs or so. Stamped rockers flex and the ratio can vary a suprising amount between individual rockers.
If you do have self aligning rockers, I doubt if the stock pushrods are hardened.
Full roller rockers have a lot less friction. Generate a lot less heat and provide more accurate valve actuation. They will drop oil temp 30 degs or so. Stamped rockers flex and the ratio can vary a suprising amount between individual rockers.
Joined: Jul 1999
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From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
believe the rockers are self aligning. To be sure pull a valve cover and check them.
If you do have self aligning rockers, I doubt if the stock pushrods are hardened.
Full roller rockers have a lot less friction. Generate a lot less heat and provide more accurate valve actuation. They will drop oil temp 30 degs or so. Stamped rockers flex and the ratio can vary a suprising amount between individual rockers.
If you do have self aligning rockers, I doubt if the stock pushrods are hardened.
Full roller rockers have a lot less friction. Generate a lot less heat and provide more accurate valve actuation. They will drop oil temp 30 degs or so. Stamped rockers flex and the ratio can vary a suprising amount between individual rockers.
Anyone have any hard proof of that? That sounds like a lot. I've also heard things like "Roller rockers are good for 20hp! over your stamped roller-tip".. Any hard proof of that either?
-- Joe
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Originally posted by anesthes
"Roller rockers are good for 20hp! over your stamped roller-tip"
-- Joe
"Roller rockers are good for 20hp! over your stamped roller-tip"
-- Joe
"Rubber rockers" as RB is known to call them
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From: Austin
Car: 82 Z-28
Engine: 383 TPI
Transmission: 700R4
In John Lingenfelters book "on modifying small-block chevy engines" pg. 114 it says a 10-15 deg drop in oil temp on a stock eng.
I read somewhere else (don't remember where), that if significantly stronger valve springs are used (i.e. 380-420 lbs open), the oil temp reduction is around 30 degs.
I can't prove the second part, but it sounds reasonable.
I read somewhere else (don't remember where), that if significantly stronger valve springs are used (i.e. 380-420 lbs open), the oil temp reduction is around 30 degs.
I can't prove the second part, but it sounds reasonable.
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