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Harland Stark Roller rockers: any dyno #s for LS1?

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Old 02-07-2004, 02:39 PM
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Default Harland Sharp Roller rockers: any dyno #s for LS1?

Like it says? Anyone installed the 1.7 stock ratio and have numbers? How about the 1.8s.


Steve

Last edited by steve-d; 02-07-2004 at 09:18 PM.
Old 02-07-2004, 04:08 PM
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Originally Posted by steve-d
Like it says? Anyone installed the 17 stock ratio and have numbers? How about the 1.8s.

Steve
I installed them with my new LS6 Stg 2.5 heads, numbers in sig, better rocker then the Yella Terra, less mass=less valve float!
Old 02-07-2004, 04:35 PM
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Originally Posted by Brian Tooley
I installed them with my new LS6 Stg 2.5 heads, numbers in sig, better rocker then the Yella Terra, less mass=less valve float!
Wow. Great numbers. I just rec'd my 1.7s and can't wait.

Steve
Old 02-07-2004, 08:56 PM
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wheres a web site i can look at these rockers? thanks
Eddie
Old 02-07-2004, 09:17 PM
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Originally Posted by silverZ98
wheres a web site i can look at these rockers? thanks
Eddie
Harland Sharp:
http://www.harlandsharp.com/bolton3.htm

Nasty N8, a board sponsor, was selling them at an intro price. He's still in a position to get you a set. They look so good I don't want to put them in and hide them. I was also able to get a great set of Manley push rods to match.

https://ls1tech.com/forums/sponsor-sales-specials/120681-new-roller-rockers-285-99-a.html


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Old 02-16-2004, 08:42 AM
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ttt

Does anyone have a dyno of just a HS upgrade? Ive heard people claim that roller rockers can gain you as much as 10 RWHP...that seems awfully high considering we already have roller fulcrum rockers. Is there really that much of an improvement?
Old 02-16-2004, 04:47 PM
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Waiting for results too.. How much valve cover grinding is needed with these?
Old 02-16-2004, 05:20 PM
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I spoke to H-S . They said none. They go in like an OEM replacement.

steve
Old 02-25-2004, 01:48 PM
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There is no grinding needed the98 valve covers need a little on the edje of the bolt holes. We did a back to back with stock and then with the 1.7. First pull gained 8rwhp second and third gained 10rwhp. Still have them at the intro price of $320.00

Thanks Nate



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