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

Alum heads

Thread Tools
 
Search this Thread
 
Old Apr 25, 2018 | 05:28 PM
  #1  
super charged's Avatar
super charged
Thread Starter
Instructor
 
Joined: Feb 2017
Posts: 156
Likes: 25
Default Alum heads

In my quest to to shave some pounds I added these to the mix, be cutting on the flywheel also.
Reply
Old Apr 26, 2018 | 08:33 AM
  #2  
DaGuvner's Avatar
DaGuvner
Advanced
 
Joined: Apr 2018
Posts: 95
Likes: 10
From: North Central IL.
Default

When I built my 383 stroker I replaced the cast iron oem intake, heads, and water pump with aluminum pieces also replaced the cast exhaust manifolds with long tube headers.
While doing this I weighed each of the old components and new. The total weight differential was almost 100 lbs. I was amazed.

I also replaced the stock rear leaf spring with a VB&P composite. Did not weigh those pieces but would guess old multi leaf steel spring around 70 lbs. Composite spring 3 lbs.
Reply
Old Apr 26, 2018 | 07:53 PM
  #3  
JoeMinnesota's Avatar
JoeMinnesota
Pro
 
Joined: May 2016
Posts: 708
Likes: 150
From: Minnesota
Default

Nice weight savings on the front end with aluminum heads and intake. The savings at the rear when going to a composite spring is between 30 and 35 lbs.
Reply
Old Apr 26, 2018 | 08:44 PM
  #4  
super charged's Avatar
super charged
Thread Starter
Instructor
 
Joined: Feb 2017
Posts: 156
Likes: 25
Default

Originally Posted by JoeMinnesota
Nice weight savings on the front end with aluminum heads and intake. The savings at the rear when going to a composite spring is between 30 and 35 lbs.
Add to the mix Alum trailing arms hub and brake caliper brackets,
alum half shafts,hollow light weight axles, c6 wheels and wilwood calipers. Bat wing And more.

Last edited by super charged; Apr 26, 2018 at 08:45 PM.
Reply
Old Apr 27, 2018 | 01:38 AM
  #5  
doorgunner's Avatar
doorgunner
2026 Loser of the Year
Supporting Member
10 Year Member
Veteran: Army
Photogenic
Photoriffic
 
Joined: Sep 2013
Posts: 36,597
Likes: 7,046
From: New Or-leens Loo-z-anna
Default

Years ago I was told that reducing a (performance) car's weight by 100 pounds is equal to increasing the power by 10 h.p./it's technically freeing up the horsepower the engine already has.

100- 200-300 pounds in weight reduction really pays off.

That's a pretty good deal when going with lightweight performance parts/an extra bonus.

Last edited by doorgunner; Apr 27, 2018 at 01:39 AM.
Reply
Old Apr 28, 2018 | 03:14 PM
  #6  
Priya's Avatar
Priya
Le Mans Master
10 Year Member
 
Joined: Dec 2009
Posts: 6,397
Likes: 649
From: Saskatoon Saskatchewan
Default

Originally Posted by doorgunner
Years ago I was told that reducing a (performance) car's weight by 100 pounds is equal to increasing the power by 10 h.p./it's technically freeing up the horsepower the engine already has.

100- 200-300 pounds in weight reduction really pays off.

That's a pretty good deal when going with lightweight performance parts/an extra bonus.
I vaguely recall that every 100 lbs saved in weight cuts .1 seconds off quarter mile time, but don't quote me on that.
Reply
Old Apr 28, 2018 | 10:25 PM
  #7  
69427's Avatar
69427
Tech Contributor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2004
Posts: 20,905
Likes: 962
From: I tend to be leery of any guy who doesn't own a chainsaw or a handgun.
Default

Originally Posted by super charged
Add to the mix Alum trailing arms hub and brake caliper brackets,
alum half shafts,hollow light weight axles, c6 wheels and wilwood calipers. Bat wing And more.
Let us know what the car weight ends up at. I always enjoy weight reduction threads.
Reply

Get notified of new replies

To Alum heads





All times are GMT -4. The time now is 11:54 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