Rocker arm?

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Rocker arm?

Post  Mudbogger on May 11th 2017, 11:46 am

What rocker arm would be best for for a .900 lift cam and 950# open spring pressure in an iron head, i have a jomar girdle already, i was looking at a crower steel roller rocker arm max rpm maybe 7500

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Re: Rocker arm?

Post  Lem Evans on May 11th 2017, 11:49 am

The best stud mounted rocker would be the Crower S.S.

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Re: Rocker arm?

Post  Mudbogger on May 11th 2017, 11:53 am

Thanks. If a shaft mount system was in the budget for it what would you recommend ? Jessel?

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Re: Rocker arm?

Post  gt350hr on May 11th 2017, 11:58 am

Nothing wrong with T&D in my experience. Crower is THE best SS rocker out there.

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Re: Rocker arm?

Post  Scott Foxwell on May 11th 2017, 3:01 pm

Mudbogger wrote:Thanks. If a shaft mount system was in the budget for it what would you recommend ? Jessel?
Not Jesel. T&D would be my only choice.

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Re: Rocker arm?

Post  Mudbogger on May 11th 2017, 3:02 pm

Thanks

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Re: Rocker arm?

Post  BOSS 429 on May 11th 2017, 5:28 pm

Mudbogger wrote:What rocker arm would be best for for a .900 lift cam and 950#  open spring pressure in an iron head, i have a jomar girdle already, i was looking at a crower steel roller rocker arm max rpm maybe 7500


Harland  Sharp for stud mounted, or jessel, or WW for shafts
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Re: Rocker arm?

Post  Mudbogger on May 12th 2017, 2:59 am

I seen Harlan Sharp has new HD rocker arm for big lifts and high spring pressure

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Re: Rocker arm?

Post  BOSS 429 on May 12th 2017, 10:40 am

they have for quite a while. work great , and are lite compared to SS stuff @ any rpm
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Re: Rocker arm?

Post  Mudbogger on May 12th 2017, 10:59 am

Price seemed reasonable to , will have to look into them some more

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Re: Rocker arm?

Post  Lem Evans on May 12th 2017, 11:17 am

Much of the Crower S.S. wt. is in the big ass shaft......which does not rotate.

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Re: Rocker arm?

Post  Paul Kane on May 12th 2017, 2:18 pm

Mudbogger wrote:What rocker arm would be best for for a .900 lift cam and 950#  open spring pressure in an iron head, i have a jomar girdle already, i was looking at a crower steel roller rocker arm max rpm maybe 7500
As far as those which are currently in production and readily available, the Crower stud rockers--both aluminum and steel--have the best design geometry for their originally-intended cylinder head applications.

Given your noted lift and presumed spring pressures, I'd recommend the Crower steel.
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Re: Rocker arm?

Post  Mudbogger on May 12th 2017, 5:41 pm

Thanks for the replies, we'll be using Pac 1248 springs.One more question, builder said bushed roller lifters, any suggestions on which ones to use thanks

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