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HOWARD'S roller rockers

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Lem Evans
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csdrag
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Post  csdrag January 3rd 2017, 11:15 pm

Any opinions on Howard's roller rockers? Or suggestions for reliable set for .900 lift 7500 RPM engine
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Post  dfree383 January 4th 2017, 10:45 am

What heads are you running?
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Post  csdrag January 4th 2017, 11:09 am

TFS AHead

dfree383 wrote:What heads are you running?  
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Post  dfree383 January 4th 2017, 1:10 pm

csdrag wrote:TFS AHead

dfree383 wrote:What heads are you running?  



If your bent on sticking with the stud mound stuff I'd look at either the Crower Stainless Steel stuff or the Comp Cams pro magnum steel ones.

Other than those I'd look into a shaft system.
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Post  csdrag January 4th 2017, 8:11 pm

I have looked at the crower rockers and like them but I haven't priced crower stuff. I will check it out. Wish I could find a used set of shaft rockers for sale. I'm not a fan of stud rockers. At least not in the .750" plus range. I'm just doing this on a budget as does everyone and figuring out how I want to spread the wealth. Unless there is a big difference between in price between shafts and crower stuff I will just buy a shaft setup. Tks for input.

dfree383 wrote:
csdrag wrote:TFS AHead

dfree383 wrote:What heads are you running?  



If your bent on sticking with the stud mound stuff I'd look at either the Crower Stainless Steel stuff or the Comp Cams pro magnum steel ones.

Other than those I'd look into a shaft system.
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Post  Paul Kane January 5th 2017, 8:33 pm

csdrag wrote:Any opinions on Howard's roller rockers?
Produced/private labeled by Scorpion.

csdrag wrote:Or suggestions for reliable set for .900 lift 7500 RPM engine
Definitely not the stud rockers from Scorpion. Personally I will use them on flat tappet cammed engines and that's it (ie, no big-springed roller valve trains).

____________________

Generally speaking, a stud rocker arm system can be suitable and effective on a big springed, high lift cammed engine provided you utilize all the correct and necessary components and the set up is well optimized.
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Post  Scott Foxwell January 5th 2017, 8:37 pm

Personally I'd say you could go a long way to re-think your cam. 7500 rpm and .900" lift don't belong in the same sentence.

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Post  Lem Evans January 5th 2017, 9:10 pm

csdrag wrote:I have looked at the crower rockers and like them but I haven't priced crower stuff. I will check it out. Wish I could find a used set of shaft rockers for sale. I'm not a fan of stud rockers. At least not in the .750" plus range. I'm just doing this on a budget as does everyone and figuring out how I want to spread the wealth. Unless there is a big difference between in price between shafts and crower stuff I will just buy a shaft setup. Tks for input.

dfree383 wrote:
csdrag wrote:TFS AHead

dfree383 wrote:What heads are you running?  



If your bent on sticking with the stud mound stuff I'd look at either the Crower Stainless Steel stuff or the Comp Cams pro magnum steel ones.

Other than those I'd look into a shaft system.

What kind of valve spring load does your heads have?

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Post  BBFTorino January 5th 2017, 9:20 pm

If you're going to go .900 lift and 7500+ RPM's, I'd be looking at nothing other than shaft rockers!!

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Post  Lem Evans January 6th 2017, 12:00 am

BBFTorino wrote:If you're going to go .900 lift and 7500+ RPM's, I'd be looking at nothing other than shaft rockers!!

I suspect he is not.

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Post  csdrag January 6th 2017, 12:15 am

BBFTorino wrote:If you're going to go .900 lift and 7500+ RPM's, I'd be looking at nothing other than shaft rockers!!

.850 lift. I am going to look at the crower SS a little harder but I will probably end up putting shafts on it whether I can find a good used set or just buy new. I'm not wild about stud and girdle set ups. They have there place and work fine in their respective applications but I just like a shaft setup. I want others input on the subject though.
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Post  tzford January 7th 2017, 10:39 am

csdrag wrote:
BBFTorino wrote:If you're going to go .900 lift and 7500+ RPM's, I'd be looking at nothing other than shaft rockers!!

.850 lift. I am going to look at the crower SS a little harder but I will probably end up putting shafts on it whether I can find a good used set or just buy new. I'm not wild about stud and girdle set ups. They have there place and work fine in their respective applications but I just like a shaft setup. I want others input on the subject though.
irun w&w they set up is very simple and well worth the money

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Post  QtrWarrior January 7th 2017, 11:52 am

My 555" Ahead , has Jesel Shaft rockers and has been to 8200
My 615" AHead, Has studs and girdles and has been to 7600-7700..
Both engines over .800' lift

No problems with either... Cool
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Post  csdrag January 7th 2017, 12:45 pm

QtrWarrior wrote:My 555" Ahead , has Jesel Shaft rockers and has been to 8200
My 615" AHead, Has studs and girdles and has been to 7600-7700..
Both engines over .800' lift

No problems with either... Cool

Whose dude rockers and girdle are you running?
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Post  csdrag January 7th 2017, 1:35 pm

QtrWarrior wrote:My 555" Ahead , has Jesel Shaft rockers and has been to 8200
My 615" AHead, Has studs and girdles and has been to 7600-7700..
Both engines over .800' lift

No problems with either... Cool

Whose stud rockers and girdle are you running?
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Post  Lem Evans January 7th 2017, 1:41 pm

Are your A460 heads the newer one that take the 1.300" threaded studs on the exhaust side?

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Post  csdrag January 7th 2017, 1:54 pm

Lem Evans wrote:Are your A460 heads the newer one that take the 1.300" threaded studs on the exhaust side?

Lem I just picked them up so I will have to look. I honestly don't know the answer to that. They are 5441t802-m87


Last edited by csdrag on January 7th 2017, 2:33 pm; edited 1 time in total
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Post  Lem Evans January 7th 2017, 2:13 pm

csdrag wrote:
Lem Evans wrote:Are your A460 heads the newer one that take the 1.300" threaded studs on the exhaust side?

Len I just picked them up so I will have to look. I honestly don't know the answer to that. They are 5441t802-m87

Should have the long studs.....take them out of the box and look at the studs.

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Post  QtrWarrior January 7th 2017, 2:16 pm

csdrag wrote:
QtrWarrior wrote:My 555" Ahead , has Jesel Shaft rockers and has been to 8200
My 615" AHead, Has studs and girdles and has been to 7600-7700..
Both engines over .800' lift

No problems with either... Cool

Whose stud rockers and girdle are you running?

Lem can correct me if I'm wrong..

Jomar girdle,( I think) Crower rockers

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Post  Lem Evans January 7th 2017, 2:21 pm

Sounds right. Do they look like this?

HOWARD'S roller rockers 2009605002Medium

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Post  csdrag January 7th 2017, 2:29 pm

QtrWarrior wrote:
csdrag wrote:
QtrWarrior wrote:My 555" Ahead , has Jesel Shaft rockers and has been to 8200
My 615" AHead, Has studs and girdles and has been to 7600-7700..
Both engines over .800' lift

No problems with either... Cool

Whose stud rockers and girdle are you running?

Lem can correct me if I'm wrong..

Jomar girdle,( I think) Crower rockers

I would put my faith in the Crower arms.

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Post  csdrag January 7th 2017, 2:30 pm

Lem Evans wrote:
csdrag wrote:
Lem Evans wrote:Are your A460 heads the newer one that take the 1.300" threaded studs on the exhaust side?

Len I just picked them up so I will have to look. I honestly don't know the answer to that. They are 5441t802-m87

Should have the long studs.....take them out of the box and look at the studs.

I'm still traveling back to my shop so I don't have a caliper with me but hey look like 1.300"
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Post  QtrWarrior January 7th 2017, 2:41 pm

Lem Evans wrote:Sounds right. Do they look like this?

HOWARD'S roller rockers 2009605002Medium

Yes, That's them !!
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Post  csdrag January 7th 2017, 7:39 pm

[quote="Lem Evans"]
csdrag wrote:
Lem Evans wrote:Are your A460 heads the newer one that take the 1.300" threaded studs on the exhaust side?

Len I just picked them up so I will have to look. I honestly don't know the answer to that. They are 5441t802-m87

Should have the long studs.....take them out of the box and look at the studs.

Yes they do measure 1.300". What were the older sets? Were they the same as the intakes?
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Post  Lem Evans January 7th 2017, 7:41 pm

All were the same lenght on the older stuff.

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