Ok, this is a stock internal motor. Was wondering which would be best. Do I need hardened pushrods for 1.6's? would there be much more of a gain with 1.7's?

 

If you use a self aligning rocker you do not need hardened pusrods. If you switch to a non-self aligning rocker you need guideplates and hardened pushrods. If you have stock heads you will not gain anything significant from 1.7:1 v. 1.6:1 rockers.

Rich

 

I agree, 1.6 roller rockers would be the max on stock heads and even for an lt1. ls1's like the 1.7 roller rockers better from what I have heard.

 

Just wanted to be an *** and throw in there that it's not 1.6" and 1.7" (inches), it's a ratio as in 1.6:1 and 1.7:1.

Hardened pushrods have nothing to do with the pushrod ratio, but as stated, whether you use guideplates or not.

 

[QUOTE=Dave88LX]Just wanted to be an *** and throw in there that it's not 1.6" and 1.7" (inches), it's a ratio as in 1.6:1 and 1.7:1.





Do you feel smarter now?

 

since you have a 95, you already have hardened pushrods from the factory

 

Great technical post


Anyway, for stock internals, your best bet is to go with 1.6's as your stock springs probably wouldn't be able to handle the extra lift. Later on, if you switch cams, just get a little higher lift cam instead of the 1.7's.

 

Well i figured it was about as good as his was, and i guess it didnt sink in as you are not following his advice. They are 1:6, not 1.6'. Remember now, its a ratio.

 

So people say but I wouldnt trust that word of mouth. REAL hardeneed pushrods are only $20.

 

I picked up a little bit on stock heads going with 1.6 RR's, but I also have all the bolt-ons. I would say do 1.6's if you intend to do all the bolt-on's as a minimum. I think 1.7's might even make a little more HP (just a little). The use of 1.7's on stock heads become prohibitive in most cases.

 

Simple...

How big of a cam do you plan on running?

If you don't plan on going over the LT-4 Specs try the 1.7's

If you plan on going bigger... Get the 1.6's

There's allot of comments and reviews on the Scorpions... on this site...

But to be honest with you I'd go with the 1.6's NSA just so I can sleep safe at night...

 

Have you or anyone else proved this yet? I'm not bashing you but alot of people say this but I have yet to see and proof of it.

 

i guess
it's your money in the end, not mine
i'd rather just use my pushrods that i already have, just my personal preference

 

It's not 1:6. It's a 1.6 ratio, as in 1:1.6. If the cam lobe moves the pushrod a given amount, the valve moves 1.6 times that.

Dan

 

hey sorry to intrude but i have a comp cam with 510 540 lift and 918 springs could i go with 1.7's and not mess anything up. Also what kind of a lift improvement would i see with 1.7's I was tol with 1.6 my lift would be like 560 570 area.
thanks