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

1.6rr help

Thread Tools
 
Search this Thread
 
Old Nov 14, 2007 | 07:42 PM
  #1  
93 black t/a's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 94
Likes: 0
Default 1.6rr help

Hey everyone i'm new here. I just recently bought some Comp Cams 1.6 Pro Magnum Rockers 1318-16. My question is do i need to replace anything else? I'm leaving the factory cam in it. I was told the springs should be fine and to roll the pushrods on a smooth surface to see if they were bent and also examine the ends of the pushrods for flaking or galling. Thanks for your input
Reply
Old Nov 14, 2007 | 07:52 PM
  #2  
94Z28Joe's Avatar
Launching!
 
Joined: May 2006
Posts: 250
Likes: 0
From: Sugar Hill, GA
Default

are those the nsa or sa rockers. if you got the nsa one you will need guideplates and hardened pushrods
Reply
Old Nov 14, 2007 | 08:06 PM
  #3  
93 black t/a's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 94
Likes: 0
Default

They're sa. Sorry i didn't state that.
Reply
Old Nov 14, 2007 | 08:47 PM
  #4  
Bones Z28's Avatar
TECH Regular
iTrader: (8)
 
Joined: Apr 2007
Posts: 428
Likes: 0
From: Chicagoland
Default

It's a good idea to replace the lifters as well if your putting in new rocker arms.
Reply
Old Nov 14, 2007 | 10:19 PM
  #5  
Boodyrider's Avatar
12 Second Club
iTrader: (2)
 
Joined: Jun 2006
Posts: 580
Likes: 1
From: Baltimore, Maryland
Default

And personally, I'd do the springs as well. 96 LT4 springs are a cheap (60 or so) reasonable (appropriate pressures and lift capacity for the slight [+about 10%] increase in lift you'll see with the rockers) choice for 1.6s with stock cam. You will also need to verify that the tip of the rocker rolls over the center of the valve tip, or in other words, verify valvetrain geometry. If they do not, you may need a different length pushrod.
Reply
Old Nov 14, 2007 | 10:27 PM
  #6  
kinglt-1's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Jul 2005
Posts: 5,898
Likes: 255
From: Ft. Wayne, IN
Default

You dont need lifters if using the stock cam! Buy the lt-4 springs and you should be good with the sa comp 1.6's
Reply
Old Nov 15, 2007 | 12:46 AM
  #7  
Bones Z28's Avatar
TECH Regular
iTrader: (8)
 
Joined: Apr 2007
Posts: 428
Likes: 0
From: Chicagoland
Default

Originally Posted by kinglt-1
You dont need lifters if using the stock cam! Buy the lt-4 springs and you should be good with the sa comp 1.6's
Well let me rephrase that. Your right you don't need lifters on a stock cam, but why not save yourself an extra headache? Especially if the motor has over 100k on it.

Also if you are going to continue to mod you are going to want to replace the lifters any how. In my case over winter when I upgrade to the 1.6's it's foolish not to replace the lifters and springs with them. The lifters are right underneath the rockers, why not? With higher mileage parts you'll install them just to take them out and reinstall them again because something else gave out. Do it right the first time. Now if your motor is relatively new then disregard this.
Reply
Old Nov 15, 2007 | 10:37 AM
  #8  
Rocky70304's Avatar
Launching!
iTrader: (4)
 
Joined: Nov 2007
Posts: 232
Likes: 0
From: Ft. Worth, TX
Default

I think you will be just fine with stock lifters and springs, but would recommend the new pushrods, very cheap insurance...... I bought a set of comp cams pro magnum 1.6:1's and they came with harndened pushrods, check the box, you may have got a set with them also...
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Nov 15, 2007 | 10:54 AM
  #9  
blackz6sp's Avatar
11 Second Club
iTrader: (11)
 
Joined: Jan 2006
Posts: 796
Likes: 1
From: Indiana
Default

Originally Posted by Bones Z28
Well let me rephrase that. Your right you don't need lifters on a stock cam, but why not save yourself an extra headache? Especially if the motor has over 100k on it.

Also if you are going to continue to mod you are going to want to replace the lifters any how. In my case over winter when I upgrade to the 1.6's it's foolish not to replace the lifters and springs with them. The lifters are right underneath the rockers, why not? With higher mileage parts you'll install them just to take them out and reinstall them again because something else gave out. Do it right the first time. Now if your motor is relatively new then disregard this.

No reason to pull the intake for rocker swap.
Reply
Old Nov 15, 2007 | 11:16 AM
  #10  
projekt70chevelle's Avatar
TECH Regular
iTrader: (4)
 
Joined: Mar 2006
Posts: 479
Likes: 0
Default

blackz6sp has a very good point, pulling the intake can be a pain. The thing is 93blackt/a, its your call. Anytime i mod my car im always looking for what i should do along with it to make sure i dont break the next thing in line... just looking for that "extra security." If the car is close to or over 100k miles i would deff. suggest swapin the lifters. Is it required for 1.6rr's... NO.... should you do it? probably. The only reason i didnt change the lifters when i put in the 1.6rr's is because i unexpectedly broke a rocker arm and didnt have the lifters for my cam swap yet (which should be goin down in a couple weeks cant wait man). I would suggest doing it just to make sure they dont fail on you in the future. I would also do the springs like boodyrider said, just to livin up that worn valvetrain. Not only that but if you're new to the LT1's it'll help you feel your way around the engine a bit. Like i said its your call bro......
Reply
Old Nov 15, 2007 | 11:51 AM
  #11  
blackz6sp's Avatar
11 Second Club
iTrader: (11)
 
Joined: Jan 2006
Posts: 796
Likes: 1
From: Indiana
Default

Originally Posted by projekt70chevelle
blackz6sp has a very good point, pulling the intake can be a pain. The thing is 93blackt/a, its your call. Anytime i mod my car im always looking for what i should do along with it to make sure i dont break the next thing in line... just looking for that "extra security." If the car is close to or over 100k miles i would deff. suggest swapin the lifters. Is it required for 1.6rr's... NO.... should you do it? probably. The only reason i didnt change the lifters when i put in the 1.6rr's is because i unexpectedly broke a rocker arm and didnt have the lifters for my cam swap yet (which should be goin down in a couple weeks cant wait man). I would suggest doing it just to make sure they dont fail on you in the future. I would also do the springs like boodyrider said, just to livin up that worn valvetrain. Not only that but if you're new to the LT1's it'll help you feel your way around the engine a bit. Like i said its your call bro......

New lifters are for sure extra security, but then again when the old ones go it more incentive for a Cam Swap
Reply
Old Nov 15, 2007 | 06:43 PM
  #12  
sdm1234's Avatar
TECH Fanatic
15 Year Member
iTrader: (8)
 
Joined: Oct 2005
Posts: 1,419
Likes: 1
From: Holland Twp/Milford, New Jersey
Default

i have SA 1.6RRs and after 5K mi i checked back on them. i had 2 pushrods broken and i don't beat on it nearly as hard as some people would. everything else was fine, though. i recommend hardened pushrods. if you have a low mileage motor, then your stock springs will be fine.
Reply
Old Nov 15, 2007 | 09:39 PM
  #13  
93 black t/a's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 94
Likes: 0
Default

Wow thanks for the input guys Well the car has 123k on it so i probably need to swap out the lifters I'm guessing you can get a spring tool to the back of the motor with having to drop the motor??
Reply
Old Nov 16, 2007 | 06:39 AM
  #14  
blackz6sp's Avatar
11 Second Club
iTrader: (11)
 
Joined: Jan 2006
Posts: 796
Likes: 1
From: Indiana
Default

Originally Posted by 93 black t/a
Wow thanks for the input guys Well the car has 123k on it so i probably need to swap out the lifters I'm guessing you can get a spring tool to the back of the motor with having to drop the motor??
Yeah no need to drop the engine.
Reply
Old Nov 16, 2007 | 04:39 PM
  #15  
Badazz 97 TA's Avatar
TECH Addict
iTrader: (18)
 
Joined: Aug 2007
Posts: 2,169
Likes: 2
From: Arizona
Default

Originally Posted by Bones Z28
Well let me rephrase that. Your right you don't need lifters on a stock cam, but why not save yourself an extra headache? Especially if the motor has over 100k on it.

Also if you are going to continue to mod you are going to want to replace the lifters any how. In my case over winter when I upgrade to the 1.6's it's foolish not to replace the lifters and springs with them. The lifters are right underneath the rockers, why not? With higher mileage parts you'll install them just to take them out and reinstall them again because something else gave out. Do it right the first time. Now if your motor is relatively new then disregard this.
Dave, you do realize that you have to pull the whole intake manifold off to get to the lifters? thats more of a headache then anything. disconnecting all the electrical connections, disconnecting fuel lines, vacuum lines etc...

now if he was doing a cam swap then i would agree with you. but for a simple rocker change dont worry about it.

sorry bad picture. the middle is where the lifters are. rockers up top

Last edited by Badazz 97 TA; Nov 16, 2007 at 04:49 PM.
Reply




All times are GMT -5. The time now is 08:54 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE