Rocker arm choices POLL
- Frankenstien
- I think I'll order a "tab"
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Rocker arm choices POLL
It seems there are a few opinions about this subject matter and I just want to see if we can get better information gathered in one location and thread.
You get 4 choices.
1. Brand
2. Type adjustable or non
3. Are you happy or not with your purchase
4. Have you had problems with them
Thanks!
You get 4 choices.
1. Brand
2. Type adjustable or non
3. Are you happy or not with your purchase
4. Have you had problems with them
Thanks!
Frankenstein
- Cheromaniac
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Re: Rocker arm choices POLL
1. Yella Terra
2. Non-adjustable
3. Very happy
4. None
2. Non-adjustable
3. Very happy
4. None
1992 XJ 4.6 I6 - 5MT - Stroker build-up, Stroker "recipes" Sold
1995 Mustang GT - 4AT - Modded Sold
2006 Mustang GT - 5MT - Modded Midlife Crisis Car
1995 Mustang GT - 4AT - Modded Sold
2006 Mustang GT - 5MT - Modded Midlife Crisis Car
- Frankenstien
- I think I'll order a "tab"
- Posts: 46
- Joined: November 15th, 2014, 9:14 am
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Re: Rocker arm choices POLL
There must be more that have an opinion? Yes?
Thank you to those that have responded good information.
Thank you to those that have responded good information.
Frankenstein
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Re: Rocker arm choices POLL
I ran Crower adjustable aluminum roller rockers with guide plates. If I build another stroker, I'm not sure if i'll run roller rockers again. I'm not sure all the money spent is worth the hp gain. Although I would love to see real world hp gains fron a set of roller rockers on the Jeep 6.
I've got 135,000 miles on my stock 4.0 with stamped rockers and you can't even hear the engine run (no valve noise).
I've got 135,000 miles on my stock 4.0 with stamped rockers and you can't even hear the engine run (no valve noise).
- gradon
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Re: Rocker arm choices POLL
1: I went with factory-style stamped from Federal Mogul
2: Obviously non-adjustable
3: Satisfied, but I've been wanting the Yella Terras for awhile(next build)
4: No problems
2: Obviously non-adjustable
3: Satisfied, but I've been wanting the Yella Terras for awhile(next build)
4: No problems
- Cheromaniac
- I live here
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Re: Rocker arm choices POLL
The real benefit of using roller rockers (especially those that have shafts to align the pairs) is that they're more stable at high rpm especially if you've upgraded to a higher lift cam and stiffer valve springs. The HP gains, unless you go to higher ratio rockers i.e. 1.7 (stock are 1.6), are negligible.dwg86 wrote:If I build another stroker, I'm not sure if i'll run roller rockers again. I'm not sure all the money spent is worth the hp gain. Although I would love to see real world hp gains fron a set of roller rockers on the Jeep 6.
1992 XJ 4.6 I6 - 5MT - Stroker build-up, Stroker "recipes" Sold
1995 Mustang GT - 4AT - Modded Sold
2006 Mustang GT - 5MT - Modded Midlife Crisis Car
1995 Mustang GT - 4AT - Modded Sold
2006 Mustang GT - 5MT - Modded Midlife Crisis Car
- Frankenstien
- I think I'll order a "tab"
- Posts: 46
- Joined: November 15th, 2014, 9:14 am
- Stroker Displacement: 4.6
- Vehicle Year: 1972
- Vehicle Make: jeep
- Vehicle Model: Cj5
Re: Rocker arm choices POLL
Wow!
Look at the change over the last week. I am beginning to think stamped is because the popular choice is to go stock cam specs? Adjustable would be for those who went more radical with the cam as will I be doing. Mmmm interesting I sure thought more would have gone H.S. and adjustable....Lets see how this plays out over the next week or so.
Thanks!
Look at the change over the last week. I am beginning to think stamped is because the popular choice is to go stock cam specs? Adjustable would be for those who went more radical with the cam as will I be doing. Mmmm interesting I sure thought more would have gone H.S. and adjustable....Lets see how this plays out over the next week or so.
Thanks!
Frankenstein
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Re: Rocker arm choices POLL
Another option worth considering would to use a OEM cam with wide lobes and nonadjustable
1.7 Harland Sharps.
Russ
1.7 Harland Sharps.
Russ
- Frankenstien
- I think I'll order a "tab"
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Re: Rocker arm choices POLL
Yes and with that could explain even using a stock cam spec. with stamped or no adjustable causing cam failure with the deep milling strokers due on head and block.
Take 10 off the head and 20 off the block then I hear a lot of guys using slightly stronger springs and you got a boom done cam with non adjustable or stamped rockers.
Then how many guys are then not breaking in cam properly from there or not using break in lubes during the first runs? Could be issue there no?
I am thinking so.
Take 10 off the head and 20 off the block then I hear a lot of guys using slightly stronger springs and you got a boom done cam with non adjustable or stamped rockers.
Then how many guys are then not breaking in cam properly from there or not using break in lubes during the first runs? Could be issue there no?
I am thinking so.
Frankenstein
- SilverXJ
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Re: Rocker arm choices POLL
Adjustable rockers will not save anyone from improper pushrod length. They can only account for a small amount of preload variance.Frankenstien wrote:Take 10 off the head and 20 off the block then I hear a lot of guys using slightly stronger springs and you got a boom done cam with non adjustable or stamped rockers.
2000 XJ. 4.6L stroker
00+ Viper Coil Swap | CPS Timing Increase Mod | Fabricated Airbox | Dash bezel, Arduino Multigauge & RD Conceal
Eat, breath, drink, sleep, Jeep, drink
00+ Viper Coil Swap | CPS Timing Increase Mod | Fabricated Airbox | Dash bezel, Arduino Multigauge & RD Conceal
Eat, breath, drink, sleep, Jeep, drink
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- Strong Poster
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Re: Rocker arm choices POLL
X 2,SilverXJ wrote:Adjustable rockers will not save anyone from improper pushrod length. They can only account for a small amount of preload variance.Frankenstien wrote:Take 10 off the head and 20 off the block then I hear a lot of guys using slightly stronger springs and you got a boom done cam with non adjustable or stamped rockers.
I'll only add that for budget considerations, the non adjustable rollers save you the cost of valve cover
and thermostat spacers.
Any good engine machinist /cylinder head guy should be able to give you a head with consistent valve tip heights.
That way measuring and ordering the correct length pushrods should be a breeze.
Russ
- Frankenstien
- I think I'll order a "tab"
- Posts: 46
- Joined: November 15th, 2014, 9:14 am
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- Vehicle Year: 1972
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Re: Rocker arm choices POLL
Frankenstein
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Re: Rocker arm choices POLL
The extra height of the adjuster nut on the pushrod side of the rocker arm will hitFrankenstien wrote:
the underside of the valve cover.
- Frankenstien
- I think I'll order a "tab"
- Posts: 46
- Joined: November 15th, 2014, 9:14 am
- Stroker Displacement: 4.6
- Vehicle Year: 1972
- Vehicle Make: jeep
- Vehicle Model: Cj5
Re: Rocker arm choices POLL
Frankenstein
- Frankenstien
- I think I'll order a "tab"
- Posts: 46
- Joined: November 15th, 2014, 9:14 am
- Stroker Displacement: 4.6
- Vehicle Year: 1972
- Vehicle Make: jeep
- Vehicle Model: Cj5
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