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Classifieds => WTB => Topic started by: lifted250 on January 11, 2015, 04:19:16 PM

Title: Roller rockers
Post by: lifted250 on January 11, 2015, 04:19:16 PM

I am looking 1.6 ratio 7/16 stud  shoot me what u have


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Title: Re: Roller rockers
Post by: Squirrel Master on January 12, 2015, 01:00:38 AM

My buddy at work has a set for sale there brand new in the box still think he want  between 100 150 I'll check tomorrow at work

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Title: Re: Roller rockers
Post by: lifted250 on January 14, 2015, 07:50:44 AM

Anything


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Title: Re: Roller rockers
Post by: lifted250 on January 15, 2015, 07:22:31 PM

Bump still looking


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Title: Re: Roller rockers
Post by: Squirrel Master on January 15, 2015, 08:45:25 PM

I've been off I'll get you his number tomorrow

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Title: Re: Roller rockers
Post by: lifted250 on January 15, 2015, 09:06:47 PM

Ok thank you


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Title: Re: Roller rockers
Post by: jyeager on January 15, 2015, 09:09:00 PM

I have a pair of 1.7 gold cranes that are out of my old set up. 👍👍👍👍


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Title: Re: Roller rockers
Post by: lifted250 on January 15, 2015, 09:17:56 PM

1.7 don't work on oldsmobile


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Title: Re: Roller rockers
Post by: lifted250 on January 15, 2015, 09:18:46 PM

1.7 roller tip over the valve tip


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Title: Re: Roller rockers
Post by: jimpen on January 16, 2015, 09:54:53 AM

Quote from: jyeager on January 15, 2015, 09:09:00 PM

I have a pair of 1.7 gold cranes that are out of my old set up. 👍👍👍👍


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how much you need for them. You change to rail mounted?


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Title: Re: Roller rockers
Post by: jyeager on January 16, 2015, 11:08:26 AM

not too sure what we changed too, i think they were shaft rockers. Ill have them back next week when we dyno the new motor with bostick. i would think 130$????

Title: Re: Roller rockers
Post by: Flusher on January 16, 2015, 06:58:19 PM

Quote from: lifted250 on January 15, 2015, 09:18:46 PM

1.7 roller tip over the valve tip

I have no intention of learning a whole lot about Oldsmobiles, but...

Are big block Chevy rockers compatible with Oldsmobile?  Smokey Yunic developed a procedure for adapting BBC rocker arms to the SBC before high-ratio rockers became available.

When the ratio of a rocker is changed, the push rod cup is moved towards or away from the fulcrum center.  It might also be moved up or down.  The center-to-center distance between the fulcrum and the roller tip that pushes on the valve always remains the same for a specific engine.

Basically, as the ratio increases from, say 1.6:1 to 1.7:1, the push rod cup is moved closer to the fulcrum.  If the design intent is to increase max-lift, the push rod cup is moved up as well as towards the fulcrum (decreases duration).  If the design intent is to increase low-lift valve opening rate, the push rod cup is moved down as well as towards the fulcrum (increases duration).

If the roller is falling off of the valve stem, it sounds like the wrong rocker arm and/or push rod combination.

You might do a search for "mid lift rocker geometry".

Hope this helps OR maybe I totally misunderstood the intent of your thread.

Good luck,

Joe

Title: Re: Roller rockers
Post by: lifted250 on January 16, 2015, 08:28:06 PM

I know what the difference is sbf olds and am. Have the same ratio 1.6 or 1.65
I want  to buy a set 1.6 7/16 stud some 1 said they had 1.7 for sale I said they don't work 


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Title: Re: Roller rockers
Post by: lifted250 on January 16, 2015, 08:29:31 PM

Again I am looking for a set 1.6 or 1.65 ratio 7/16 stud shoot me a pm if u have any


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Title: Re: Roller rockers
Post by: Squirrel Master on January 19, 2015, 12:40:36 AM

He brought them to me at work today so I have them I'll take better pictures and send it to you and yes he lost one of the locks

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Title: Re: Roller rockers
Post by: lifted250 on January 22, 2015, 07:59:15 AM

Bump still looking


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Title: Re: Roller rockers
Post by: lifted250 on January 24, 2015, 06:10:34 PM

Bump


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