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

Wiped cam lobe

Thread Tools
 
Search this Thread
 
Old Jul 26, 2015 | 02:35 PM
  #21  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default

1.5 stainless steel roller rockers
Reply
Old Jul 26, 2015 | 08:13 PM
  #22  
rklessdriver's Avatar
rklessdriver
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
Default

For the money Howards would be your best bet. Competition Products sells their retro hyd roller cam and lifter kits.

$619 pn CL-110335-10 cam and lifters is what I'd recommend.
Will
Reply
Old Jul 26, 2015 | 09:45 PM
  #23  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default Wiped cam lobe

Do you think I can run that to about 7000? I think that is a good deal.. I would be able to keep my valve Springs? What about pushrod length.. I hope I don't have to do anything there..
Reply
Old Jul 26, 2015 | 10:53 PM
  #24  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default Wiped cam lobe

Where do you find the recommended valve Springs for that cam? All the other hydraulic roller cams are around 130 seat pressure and 340 open. In that case mine would be too much right?
Reply
Old Jul 27, 2015 | 09:10 AM
  #25  
rklessdriver's Avatar
rklessdriver
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
Default

Originally Posted by Chevrolet12
Where do you find the recommended valve Springs for that cam? All the other hydraulic roller cams are around 130 seat pressure and 340 open. In that case mine would be too much right?
As long as you stay with 1.5 rockers your springs will be fine. You actually want the kind of pressure yours have to get some more RPM out of it.

In your 383, I'd think peak power at 6500 and pull to 7000.

You'll need pushrods (will be shorter) because the retro roller lifters are so much taller. Good 5/16 .080 wall from Manley or Howards should be about $125.
Will
Reply
Old Jul 27, 2015 | 09:53 AM
  #26  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default Wiped cam lobe

The pushrods I got were trick flow. 080 wall and they were 99 from summit... Anything else I will need for that?
Reply
Old Jul 27, 2015 | 01:47 PM
  #27  
rklessdriver's Avatar
rklessdriver
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
Default

Originally Posted by Chevrolet12
The pushrods I got were trick flow. 080 wall and they were 99 from summit... Anything else I will need for that?
TFS Pushrods are private label from Trend. Very good parts, same as Howards.

Cam & lifter kit, pushrods... of course few gaskets - depending on how far you tear it down.

You won't need anything else.

Will
Reply
Old Jul 27, 2015 | 03:07 PM
  #28  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default Wiped cam lobe

Great. I think I'm going to go that route. Comp is having me send the cam back to them. Hopefully they will take care of it. I think they want me to get another cam from them though..
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Jul 27, 2015 | 04:10 PM
  #29  
mtwoolford's Avatar
mtwoolford
Melting Slicks
10 Year Member
 
Joined: Jan 2009
Posts: 3,482
Likes: 196
From: folsom california
Default

Originally Posted by chevyowner
No you're not the only one. Might want to look at a roller cam. IMO this page does a decent job explaining it.
So much for keeping my GM car all GM
Reply
Old Jul 27, 2015 | 05:15 PM
  #30  
aDigitalPhantom's Avatar
aDigitalPhantom
Burning Brakes
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Apr 2009
Posts: 1,228
Likes: 10
From: That one city...you know that one. Idaho
Default

Originally Posted by mtwoolford
So much for keeping my GM car all GM
huh?
Reply
Old Jul 27, 2015 | 05:21 PM
  #31  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default

That's what I was going to say...
Reply
Old Jul 27, 2015 | 07:46 PM
  #32  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default Wiped cam lobe

Do you happen to know what the base circle is on that cam? The one I had was a small base circle I think it was .960 not sure I measured it right tho...
Reply
Old Jul 28, 2015 | 08:11 AM
  #33  
rklessdriver's Avatar
rklessdriver
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
Default

Originally Posted by Chevrolet12
Do you happen to know what the base circle is on that cam? The one I had was a small base circle I think it was .960 not sure I measured it right tho...
I do not but they will grind it on small BS if you need it for rod clearance.

Will
Reply
Old Jul 28, 2015 | 11:49 AM
  #34  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default Wiped cam lobe

Ok.. Comp says to send it to them and they are going to take care of it and get me a hydraulic roller at a discount price and credit on the bad cam.. I need to find out what they have with the same specs as the Howards or if they need to custom grind one..
Reply
Old Jul 28, 2015 | 02:40 PM
  #35  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default Wiped cam lobe

I can have comp custom grind that cam for me on a small base circle. They told me my spring pressure was too much unless I run a short travel roller lifter.. What's your opinion? I can find a set of standard sbc roller lifters for $160 but if I go with short travel I think I'm around $350..do I need to use those or not?
Reply
Old Jul 28, 2015 | 03:42 PM
  #36  
rklessdriver's Avatar
rklessdriver
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
Default

Originally Posted by Chevrolet12
I can have comp custom grind that cam for me on a small base circle. They told me my spring pressure was too much unless I run a short travel roller lifter.. What's your opinion? I can find a set of standard sbc roller lifters for $160 but if I go with short travel I think I'm around $350..do I need to use those or not?
The spring pressure is fine. You can run short travel if you want but I never have.

Also you need retro fit lifters.... make sure they know that. I have never seen retro lifters sold for $160 even on a great deal.
Will
Reply
Old Jul 28, 2015 | 03:46 PM
  #37  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default Wiped cam lobe

They are retro fit. EBay special...
Reply

Get notified of new replies

To Wiped cam lobe

Old Jul 28, 2015 | 07:00 PM
  #38  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default Wiped cam lobe

Also comp recommended part number 12-444-8 hydraulic roller and idk if that would be as good as the Howards for my set up.. What's your opinion? My Springs I got from competition products part # 99893e. And if I use these lifters http://m.ebay.com/itm/200928215757
Would that be a good set up or would it be better to do a custom grind of the Howards? Either way it's gonna be a custom grind for small base circle.
Reply
Old Jul 28, 2015 | 10:16 PM
  #39  
rklessdriver's Avatar
rklessdriver
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
Default

99893e is a Crane spring built by Hi-Tec. It's a great spring. Ran a bunch of them in the past.

As far as the lifters. I don't know anything about the eBay ones and very little about Comps. But IMO the Comps are probably as good if not better than the Howards.
Will
Reply
Old Jul 28, 2015 | 10:22 PM
  #40  
Chevrolet12's Avatar
Chevrolet12
Thread Starter
Instructor
 
Joined: Aug 2014
Posts: 249
Likes: 0
Default Wiped cam lobe

Ok. I just measured the valve Springs and they are stacking up at about 1.2.... My installed height is 1.750 I think that's my problem. My lift was 558 and it was coil binding.. It lists the coil bind at 1.080 I don't get it. Unless it was boxed wrong? I may just go with comp and match all the parts this time.
Reply



All times are GMT -4. The time now is 03:11 AM.

story-0
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-1
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-2
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-3
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
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE