Who sells adjustable 1.7 ratio rockers?
to the title.... 
I can shift faster than you.
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From: Baton Rouge, LA
I would look into the T&D rockers. I have used these on countless motors with excellent results. Thunder Racing has them listed on their new page here:
http://www.thunderracing.com/catalog...vid=3&pcid=108
http://www.thunderracing.com/catalog...vid=3&pcid=108
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The cranes are 699 and come with pushrods. Vinci sells an identical part same price. The comp cams 1.75's are almost negligable in terms of increased lift..... .580 lift is .597 with those and they are only 450 and look like they weigh less.(they are also fully adjustable.)
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actually the vinci product is $659.00 and comes with pushrods, guideplates, and screw-in-studs http://www.vincihighperformance.com/...RTSPARENT.HTML
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From: Kansas City, MO
Shimming is not the correct approach. It is a "might work", but not the proper way to do things. Shimming can , and usually does, adversely affect the valvetrain geometry. Personally, I only shim when it is necessary. Adding shims affects the pushrod/rocker and rocker/valve angles. Do it right or don't do it. If you need adjustables, buy adjustables.
for instance you have the heads cut down .030 to gain compression. this brings the head closer to the block. thus shortening the distance. so you would then either need to get shorter pushrods to correct the valvetrain geometry problem. or get adjustable rocker arms.
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To add to mrr23:
When you are using solid/mechanical lifters instead of hydraulics
When you are using modified hydraulic lifters(i.e. Comp R, Strubeck<however you spell that>, etc)
When you require a great deal of valvetrain stability(high end rockers are almost always adjustable)
When you are using solid/mechanical lifters instead of hydraulics
When you are using modified hydraulic lifters(i.e. Comp R, Strubeck<however you spell that>, etc)
When you require a great deal of valvetrain stability(high end rockers are almost always adjustable)
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From: At the office
Originally Posted by MrMex
What is the purpose of spending the extra money on adjustables if the YT's will work with shimming?
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Well, I didn't see Jesel's on Speed Inc's website. It seems the Comp Cams are really 1.75 and not 1.7; I don't want the extra lift.
I want a true 1.7 that comes as rockers only, adjustable, and fits under the stock valvecovers without spacers. Which one of these will suit my needs?
I want a true 1.7 that comes as rockers only, adjustable, and fits under the stock valvecovers without spacers. Which one of these will suit my needs?
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From: sydney australia
so if
Originally Posted by mrr23
for instance you have the heads cut down .030 to gain compression. this brings the head closer to the block. thus shortening the distance. so you would then either need to get shorter pushrods to correct the valvetrain geometry problem. or get adjustable rocker arms.
So if you have hade 30 thou taken off the heads. And you have got yella terras 1.8 ratio, You should take the 30 thou plus the amount the ratio change provides? Am i right if the ratio change makes say 40 thou ,And the heads being shaved makes 30 thou ,Thats 70 thou shorter push rods you need? is that right?
As i have all of the above. And also have rattly tappets . But yet if i put the original's back on it's quite as!!!sorry about the grammer and spelling but wasn't much into school
Last edited by fat410; Apr 11, 2004 at 07:23 PM. Reason: grahmmer
