Harland sharp rockers
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Harland sharp rockers
Harland sharp lists a different part # for scj heads. I'm wondering what the difference is ?
AL Q- Posts : 83
Join date : 2010-11-12
Age : 59
Location : Aldergrove, British Columbia, Canada
Re: Harland sharp rockers
Length of the lever arm from the stud hole and angle of the pushrod cup.AL Q wrote:Harland sharp lists a different part # for scj heads. I'm wondering what the difference is ?
Re: Harland sharp rockers
Will the different lever arm affect the lift of the valve?
AL Q- Posts : 83
Join date : 2010-11-12
Age : 59
Location : Aldergrove, British Columbia, Canada
Re: Harland sharp rockers
NO ... unless you want more than a 1.73/1 ratio will provide. The SCJ heads NEED these, (or Crane geometry), rocker arms on the intake side; especially with big diameter springs. The exhaust side is not a problem with either rocker.AL Q wrote:Will the different lever arm affect the lift of the valve?
Personally, I buy both sets and split them. I use the S4073 on one side and the S4005 on the other side of all the Big block Ford heads..
Re: Harland sharp rockers
Exactly the info I was looking for, thank you Randy
AL Q- Posts : 83
Join date : 2010-11-12
Age : 59
Location : Aldergrove, British Columbia, Canada
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