C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

What spec cam do I use

Thread Tools
 
Search this Thread
 
Old Jan 8, 2007 | 11:24 PM
  #1  
ajstr1265's Avatar
ajstr1265
Thread Starter
Instructor
10 Year Member
 
Joined: May 2005
Posts: 229
Likes: 0
From: Oreland PA
Default What spec cam do I use

I have a 76 L48 I am rebuilding using stock lower end, just replacing bearing, rings etc. Top end I am adding and aluminum intake and a set of 202 heads, stock exhaust manifolds. I hear 10 answers from 10 people to the following:

What kind/spec cam do I use. I want a little thump but reliable? Any suggestions. this is not a high compression engine.
Reply
Old Jan 9, 2007 | 01:18 AM
  #2  
drgrigoriy's Avatar
drgrigoriy
Instructor
 
Joined: Nov 2006
Posts: 178
Likes: 0
From: Beaumont TX
Default

I am doing the same rebuild, going with a Edelbrock Performer intake and the Q-Jet, but wanted to know about the cam as well. Thinking of going with headers as well.
Greg
Reply
Old Jan 9, 2007 | 02:10 AM
  #3  
Little Mouse's Avatar
Little Mouse
Le Mans Master
15 Year Member
 
Joined: Apr 2006
Posts: 5,403
Likes: 95
Default

L/48 cam has, int. lift .390, ex. lift .410. .050 int dur 195,.050
ex. dur. 202, RPM range 800-4500 rpm.
This cam would be a nice upgrade and would work with low
compression, 308 gearing, auto or 4 speed
Crane cams Z-cam
cam and lifters part # 113512
RPM range 1600-5400
cruise RPM 2400-2800
8.5 to 10.0 compression ratio advised
int. dur. .050 - 212
ex. dur. .050 - 218
adv. int. dur.- 262
adv. ex. dur.- 268
LSA 114
int. lift .446
ex. lift .459
CAM FACTS good low end and mid range torque and HP,
good idle, daily usage, off road,
aplications: primarily used in 350 cu. in. mildly modified engines.

if you have a 4 speed or more then 3.08 for gearing look at a cam like this.
Crane cam and lifters part # 113522
RPM power range 1800-5800
.050 int dur. 218
.050 ex. dur. 230
adv. int. dur. 268
adv. ex. dur. 280
LSA 112
int. lift .459
ex. lift .486

To get rid of ten different answers to the same question call the cam company
of your choice.

Last edited by Little Mouse; Jan 9, 2007 at 02:52 AM.
Reply
Old Jan 9, 2007 | 05:44 AM
  #4  
BB72's Avatar
BB72
Melting Slicks
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Aug 2006
Posts: 3,429
Likes: 20
From: Kingston Ontario
Default These sound good

Originally Posted by Little Mouse
L/48 cam has, int. lift .390, ex. lift .410. .050 int dur 195,.050
ex. dur. 202, RPM range 800-4500 rpm.
This cam would be a nice upgrade and would work with low
compression, 308 gearing, auto or 4 speed
Crane cams Z-cam
cam and lifters part # 113512
RPM range 1600-5400
cruise RPM 2400-2800
8.5 to 10.0 compression ratio advised
int. dur. .050 - 212
ex. dur. .050 - 218
adv. int. dur.- 262
adv. ex. dur.- 268
LSA 114
int. lift .446
ex. lift .459
CAM FACTS good low end and mid range torque and HP,
good idle, daily usage, off road,
aplications: primarily used in 350 cu. in. mildly modified engines.

if you have a 4 speed or more then 3.08 for gearing look at a cam like this.
Crane cam and lifters part # 113522
RPM power range 1800-5800
.050 int dur. 218
.050 ex. dur. 230
adv. int. dur. 268
adv. ex. dur. 280
LSA 112
int. lift .459
ex. lift .486

To get rid of ten different answers to the same question call the cam company
of your choice.
These cams sound good, these should give you a good idle, not too radical, and should easily put you within the realiabilty of a stock bottom end and work good with the new intake and heads. With stock heads you want to stay below .500 lift to avoid coil bind.I don't see why 300hp couldn't be reached. Just my two cents.
Reply
Old Jan 9, 2007 | 10:11 AM
  #5  
Ganey's Avatar
Ganey
Race Director
10 Year Member
 
Joined: Apr 1999
Posts: 11,520
Likes: 13
From: CORVETTE 77 385 C.I. TEXAS
Default

Trans. & rear gears at least should be stated for cam.
Auto./stock converter minimum Edelbrock 2102 which needs better heads for 300HP.
Better something like Comp Cams XE-256 or 260H.

Manual trans. Comp Cams XE-262 or 268H.

Have done many posts on this.
Reply

Get notified of new replies

To What spec cam do I use





All times are GMT -4. The time now is 08:37 AM.

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