LT1-LT4 Modifications 1993-97 Gen II Small Block V8

1.7 rrs and the lt1

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Old Mar 9, 2008 | 08:07 PM
  #21  
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does anyone have any thoughts on the hot cam and adding 1.7 rockers, besides upgrading the lt4 springs
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Old Mar 9, 2008 | 09:09 PM
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My cam has .600 lift with 1.6 rockers. I dont think adding more lift can be done without having a big headache with clearancing stuff.......

With something like a cc503........you could add 1.7RR's and still not be at .600 lift

So whether or not its a good or bad idea depends on the motor
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Old Mar 9, 2008 | 09:32 PM
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looking for the 1.7 rr is like trying to find a needle in a haystack! i find them for big blocks and fords...but none for a regular sbc or a lt1 or narrow ones for centerbolt valvecovers.
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Old Mar 9, 2008 | 09:32 PM
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i never seen why it wouldnt work with a smaller cam...also i thought you had to use shorter pushrods to retain a good valvetrain geometry? nobodys mentioned it ...am i wrong?
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Old Mar 9, 2008 | 09:33 PM
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look on ebay...i have seen the scorpion brand on there
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Old Mar 9, 2008 | 09:37 PM
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Originally Posted by Jeep_junkie
From a few years ago over at cz28.com

http://www.cz28.com/forums/showthread.php?t=180122
the link is broken now??? it worked this afternoon but now tonight it doesnt!
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Old Mar 9, 2008 | 09:57 PM
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since its possible to run the 1.7 rr can you just use the 1.7 rr made for the lsx engines?

Last edited by 97badass; Mar 10, 2008 at 11:11 AM.
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Old Mar 10, 2008 | 11:59 AM
  #28  
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http://www.compcams.com/Technical/Pr...hStainless.asp


Check the chart at the bottom.
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Old Mar 10, 2008 | 03:45 PM
  #29  
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The guy who owned my engine before me ran 13.0 at 108 with LTs 1.7 scorpions intake tune. That's it.

He got rid of the motor because he overrevved it and bent/broke 4 pushrods.
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Old Mar 10, 2008 | 09:15 PM
  #30  
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Originally Posted by LSWHO
He got rid of the motor because he overrevved it
How high did he go? 6k seems to be about the safe threshold for a stocker.
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Old Mar 10, 2008 | 11:40 PM
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Originally Posted by TwoFast4Lv
BTW Anyone notice NASCAR is using cam that run 2.2 ratio Rockers?
They run higher and lower ratios, too.
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Old Mar 11, 2008 | 01:04 AM
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Originally Posted by 954mula
How high did he go? 6k seems to be about the safe threshold for a stocker.
Must've been higher. I never heard. He was racing and I think missed the gear. He was also using stock pushrods in his 96 motor.
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Old Mar 11, 2008 | 04:34 AM
  #33  
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Just google Scorpion rockers and it should come up. Like stated above, they are on ebay as well.
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Old Mar 11, 2008 | 08:45 PM
  #34  
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Scorpion scp-1026 1.7 rocker, trickflow tfs-30400623-8 guide plates, ARP 1347103 7/16 stud and comps 5/16 one piece chrome moly push rods 7939-16 (7.150), but always check length to be sure. Search is my friend!
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Old Mar 11, 2008 | 09:27 PM
  #35  
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Originally Posted by lt1-xjs
Scorpion scp-1026 1.7 rocker, trickflow tfs-30400623-8 guide plates, ARP 1347103 7/16 stud and comps 5/16 one piece chrome moly push rods 7939-16 (7.150), but always check length to be sure. Search is my friend!
Looks like all that's missing is part# for springs. Wouldn't the LT4's work? Part# 12551483.

In contrast, all this will give ~.060 more lift. So will a new cam if desired but a cam swap will likely come with more duration. From a budget standpoint, the cost seems about the same.
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