BBC Aluminum vs Iron Head Question - CorvetteForum - Chevrolet Corvette Forum Discussion

Go Back   >
Log In 
Register FAQ Search Today's Posts Mark Forums Read Vendor Directory

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

BBC Aluminum vs Iron Head Question

Reply
 
 
 
Thread Tools Search this Thread
Old 06-12-2009, 02:30 PM   #1
James
CF Senior Member
Thread Starter
 
James's Avatar
 
Member Since: Nov 2000
Location: Johnston Iowa
Posts: 948
Thanks: 0
Thanked 0 Times in 0 Posts
Default BBC Aluminum vs Iron Head Question

Just curious on the average what is the wieght savings between a set of BBC aluminum heads vs a set of BBC iron heads? While I have the 509 out of my 69 I was thinking about replacing the cast iron Merlin II rectangle port heads with a set of Merlin III aluminum heads. Just was wondering how much wieght that would knock off the front end?
James is offline   Reply With Quote
Old 06-12-2009, 03:53 PM   #2
Little Mouse
CF Senior Member
 
Member Since: Apr 2006
Posts: 4,562
Thanks: 0
Thanked 5 Times in 5 Posts
Default

Fully assembled iron 308 rectangle port, 70 lbs X 2 = 140
Fully assembled 308 pro 1 aluminum, 29 lbs X 2 = 58 lbs


This is just looking at what dart shows on there web site as weight
for there heads.

Last edited by Little Mouse; 06-12-2009 at 04:14 PM.
Little Mouse is offline   Reply With Quote
Old 06-12-2009, 04:09 PM   #3
Ganey
CF Senior Member
 
Ganey's Avatar
 
Member Since: Apr 1999
Location: CORVETTE 77 385 C.I. TEXAS
Posts: 11,524
Thanks: 0
Thanked 0 Times in 0 Posts
Default

About 75.
Ganey is offline   Reply With Quote
Old 06-12-2009, 05:32 PM   #4
Ironcross
CF Senior Member
 
Ironcross's Avatar
 
Member Since: Nov 2002
Location: Taylor Michigan
Posts: 12,091
Thanked 16 Times in 15 Posts
Default

actually you will save 70 lbs off the front end....fully dressed from iron to aluminum.
Ironcross is offline   Reply With Quote
Old 06-12-2009, 06:10 PM   #5
427Hotrod
CF Senior Member
 
427Hotrod's Avatar
 
Member Since: Jan 2000
Location: Houston, Tx
Posts: 9,599
Thanks: 0
Thanked 122 Times in 101 Posts
Default

And if you're buying heads....I'd pick a better set. You can easily beat the Merlin's these days.

JIM
427Hotrod is offline   Reply With Quote
Old 06-12-2009, 09:23 PM   #6
baxsom
CF Senior Member
 
Member Since: Jun 2008
Location: Rockledge FL
Posts: 4,408
Thanks: 0
Thanked 2 Times in 2 Posts
Default

look at it this way. i replaced the iron heads with al on my 454.
i had to get help lifting them up off of the car.
the al ones i could lift onto the block with one hand
baxsom is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • BBC Aluminum vs Iron Head Question
  •  
     
    Reply

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    Cast iron vs aluminum heads Strick C4 Tech/Performance 21 07-12-2013 11:29 AM
    Any good factory Chevy cast iron BBC Big Port heads out there? 632C2 C3 Tech/Performance 31 12-18-2009 11:40 AM
    F\S Merlin iron heads 467-Ratman C3 Parts for Sale/Wanted 2 01-24-2002 01:43 PM
    Merlin II vs. Dart Big 'M' block Flareside Engine Mods 21 12-22-2001 05:48 PM
    Weight difference? BBC with aluminum heads vs. SBC with iron heads. John Dirks C3 Tech/Performance 2 11-24-2001 07:02 PM


    Tags
    alum, aluminum, alumiunm, bbc, cast, head, heads, iorn, iron, merlin, vs, weight

    Thread Tools Search this Thread
    Search this Thread:

    Click for Advanced Search

    Posting Rules
    You may not post new threads
    You may not post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are Off
    Pingbacks are Off
    Refbacks are Off

    Forum Jump


    All times are GMT -4. The time now is 06:26 AM.