C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Question about roller rockers

Thread Tools
 
Search this Thread
 
Old Sep 5, 2002 | 06:03 PM
  #1  
Carroll B's Avatar
Carroll B
Thread Starter
Drifting
20 Year Member
 
Joined: Jun 1999
Posts: 1,437
Likes: 0
Default Question about roller rockers

Someone has offered me a set of Comp Cams 1.6 roller rockers at a very good price. $0.00
Would you have to install new valve springs to use them in an LT1?
Would I gain anything using the stock heads?
What is a ballpark figure for having this installation done?
Reply
Old Sep 5, 2002 | 06:06 PM
  #2  
Nathan Plemons's Avatar
Nathan Plemons
Race Director
15 Year Member
 
Joined: May 2001
Posts: 14,165
Likes: 9
Default Re: Question about roller rockers (Carroll B)

You'll probably need new springs. You'll need to modify your valve covers for them to fit properly. If these rockers are non self aligning you will need hardened pushrods and guide plates.

Power gain can be pretty good.

You're looking at a couple hundred bucks because of the springs, pushrods, and guide plates. I can't say how much it would cost to have somebody do it.
Reply
Old Sep 5, 2002 | 06:24 PM
  #3  
1MoorTym's Avatar
1MoorTym
Drifting
 
Joined: Aug 2000
Posts: 1,521
Likes: 0
From: West Islip New York
Default Re: Question about roller rockers (Carroll B)

Would you have to install new valve springs to use them in an LT1?
Would I gain anything using the stock heads?
What is a ballpark figure for having this installation done?
You'll only need new springs if the lift using the 1.6 rockers exceeds the current springs capacity. Its easy to calculate. The the existing lift (gross) divided by 1.5 (assuming you currently have 1.5 rockers) and then multiply by 1.6. Thats your new lift. Or, if you know your cam grind, simply multiply by 1.6. Check the catalog for you spring rating.

Not sure on the LT1 if you use self-aligning rockers or not. (i'm an L98 man).
But, you'll have to accomondate whatever the new rockers are. If you currently have self-aligning rockers and the new ones are self-aligning, then your good to go. Let me know what you have on the car and what kind of rockers your getting.

The gain will be smoother valve train operation, much less friction, lower oil temps and a couple of hp - even on stock heads. Well worth what you'll have to spend putting them in considering you got them for nothing.
Reply

Get notified of new replies

To Question about roller rockers





All times are GMT -4. The time now is 10:38 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE