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

Cheap Aluminum heads?

Thread Tools
 
Search this Thread
 
Old Nov 19, 2004 | 11:38 PM
  #1  
ZD75blue's Avatar
ZD75blue
Thread Starter
Race Director
10 Year Member
 
Joined: Nov 2000
Posts: 16,416
Likes: 1
From: NC,USA
Default Cheap Aluminum heads?

Hey guys...

I would like to find a set of cheap aluminum heads that work with the TPI injection (I'm pretty sure TPI is on the same bolt pattern as the vortecs?)

Weight savings! Higher compression ratio with lower octane...

I need some idea's... Buy a parts car that has everything needed to make the swap?

Reply
Old Nov 19, 2004 | 11:46 PM
  #2  
75 Stingray!'s Avatar
75 Stingray!
Drifting
10 Year Member
 
Joined: May 2003
Posts: 1,414
Likes: 2
From: Barrie
Default

Originally Posted by ZD75blue
Hey guys...

I would like to find a set of cheap aluminum heads that work with the TPI injection (I'm pretty sure TPI is on the same bolt pattern as the vortecs?)

Weight savings! Higher compression ratio with lower octane...

I need some idea's... Buy a parts car that has everything needed to make the swap?

The only production aluminum heads you can use with TPI are the ones off a L98 Corvette.
Vortec heads are not aluminum and are raised port, I think edelbrock makes a TPI base intake for raised runners but the bolt pattern is different.
Reply
Old Nov 20, 2004 | 12:04 AM
  #3  
ZD75blue's Avatar
ZD75blue
Thread Starter
Race Director
10 Year Member
 
Joined: Nov 2000
Posts: 16,416
Likes: 1
From: NC,USA
Default

Gotcha...

Knew the vortecs were cast... was pondering the bolt pattern for the TPI.

More reading needed me thinks.
Reply
Old Nov 20, 2004 | 07:19 AM
  #4  
Steve's74's Avatar
Steve's74
Burning Brakes
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
All Eyes On Me
 
Joined: Feb 2004
Posts: 958
Likes: 1
From: In the Beautiful Shenandoah Valley of VA
Default

...cheap aluminum heads...
Isn't that an oxymoron?

Steve
Reply
Old Nov 20, 2004 | 07:29 AM
  #5  
Gordonm's Avatar
Gordonm
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
Default

The L98 is not a bad head for the TPI system. A little port work and they flow decent. By the time you rework and port them they are no longer cheap though.
Reply
Old Nov 20, 2004 | 09:10 AM
  #6  
ZD75blue's Avatar
ZD75blue
Thread Starter
Race Director
10 Year Member
 
Joined: Nov 2000
Posts: 16,416
Likes: 1
From: NC,USA
Default

I keep hearing that...

I doubt, I can find a wrecked vette... with a decent engine, of that vintage... cheaply!

I'm fighting the urge to upgrade my 882 (76cc heads ) in hopes of switching to a set that have a good bit more potential. The Vortecs are great heads... out of my budget for the moment, requiring rockers, and a new intake to run!

Thanks for the heads up

Reply
Old Nov 20, 2004 | 09:25 AM
  #7  
page62's Avatar
page62
Le Mans Master
 
Joined: Mar 2002
Posts: 7,456
Likes: 2
From: Coming home from Luckenbach Texas
Default

I just got a set of these from Summit Racing...



They have similar specs to the "fuelie" heads from the late '60s, but also have heart-shaped chambers similar to Vortecs (the photo doesn't show this). 67cc chambers, 2.02/1.60 valves, 165cc intake runners. An excellent bargain at only $650/pair!!!

Go to Summit Racing and search SUM-152123. They're actually made by Dart and are similar Iron Eagle Street/Strip heads, but with bigger valves and smaller chambers

BTW: TPI should bolt up to these. L98 heads used a standard -- not Vortec -- intake bolt pattern.

Last edited by page62; Nov 20, 2004 at 09:29 AM.
Reply
Old Nov 20, 2004 | 09:26 AM
  #8  
page62's Avatar
page62
Le Mans Master
 
Joined: Mar 2002
Posts: 7,456
Likes: 2
From: Coming home from Luckenbach Texas
Default

BTW: TPI should bolt up to these. L98 heads used a standard -- not Vortec -- bolt pattern.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-1

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-2

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-3

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

 Michael S. Palmer
story-4

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

 Joe Kucinski
story-5

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

 Joe Kucinski
story-6

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

 Verdad Gallardo
story-7

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

 Joe Kucinski
story-8

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

 Verdad Gallardo
story-9

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
Old Nov 20, 2004 | 09:29 AM
  #9  
Fevre's Avatar
Fevre
Race Director
15 Year Member
 
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Default

TPI intakes do not have the same bolt pattern as the vortecs, they have the same bolt as our stock heads except the 2 inner bolts on each side are angled more upright but you can grind the intake to allow use of all older style bolt patterns.
Reply
Old Nov 20, 2004 | 09:39 AM
  #10  
ZD75blue's Avatar
ZD75blue
Thread Starter
Race Director
10 Year Member
 
Joined: Nov 2000
Posts: 16,416
Likes: 1
From: NC,USA
Default

Cool!

650 a set... using the same intake I have now... Vortecs or aluminum heads. Let me think, uh... aluminum!
Reply
Old Nov 20, 2004 | 09:45 AM
  #11  
Fevre's Avatar
Fevre
Race Director
15 Year Member
 
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Default

Originally Posted by ZD75blue
Cool!

650 a set... using the same intake I have now... Vortecs or aluminum heads. Let me think, uh... aluminum!
The heads referenced are iron not alum.

Cylinder Head, Cast Iron, Natural, 67cc, Chevy, Small Block
Reply
Old Nov 20, 2004 | 10:01 AM
  #12  
ZD75blue's Avatar
ZD75blue
Thread Starter
Race Director
10 Year Member
 
Joined: Nov 2000
Posts: 16,416
Likes: 1
From: NC,USA
Default

Well...

There goes my fun.



Saw what I wanted em to be I guess... (that and had not taken the time to run the part number on summit...)

Reply
Old Nov 20, 2004 | 10:09 AM
  #13  
page62's Avatar
page62
Le Mans Master
 
Joined: Mar 2002
Posts: 7,456
Likes: 2
From: Coming home from Luckenbach Texas
Default

Oops, sorry. Forgot to mention that. What's the problem with cast iron?
Reply
Old Nov 20, 2004 | 10:31 AM
  #14  
mandm1200's Avatar
mandm1200
Melting Slicks
Supporting Lifetime
 
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
Default

The Summit heads use centerbolt valve covers. You'll need to purchase them as well. They compare these to the old GM double humps, not bad, but not as good as the Vortec's.

Changing the heads should be an improvement, but in my opinion just changing them is not going to make a whopping difference. Buy what you can afford now and keep saving up until you get the intake and cam. By changing all three you will see and feel the difference.
Reply
Old Nov 20, 2004 | 11:01 AM
  #15  
Joebio's Avatar
Joebio
Racer
 
Joined: Jun 2003
Posts: 357
Likes: 0
From: swansea ma
Default

I am sure this is a mistake on their site but if you go to summit, http://store.summitracing.com/defaul...4922130+305337
They have the aluminum vortec heads for $259, I say hey give it a shot and see what happens.
Reply
Old Nov 20, 2004 | 11:06 AM
  #16  
cardo0's Avatar
cardo0
Le Mans Master
20 Year Member
 
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
Default Awsome price.

Originally Posted by page62
I just got a set of these from Summit Racing...

They have similar specs to the "fuelie" heads from the late '60s, but also have heart-shaped chambers similar to Vortecs (the photo doesn't show this). 67cc chambers, 2.02/1.60 valves, 165cc intake runners. An excellent bargain at only $650/pair!!!
Go to Summit Racing and search SUM-152123. They're actually made by Dart and are similar Iron Eagle Street/Strip heads, but with bigger valves and smaller chambers
BTW: TPI should bolt up to these. L98 heads used a standard -- not Vortec -- intake bolt pattern.
Great price and only negative feature is lack of heated crossover for a stock replacement head. But then if someone is using FI then its not an issue. cardo0
Reply
Old Nov 20, 2004 | 11:10 AM
  #17  
mandm1200's Avatar
mandm1200
Melting Slicks
Supporting Lifetime
 
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
Default

That's a misprint. The Vortec is cast iron. I believe the more expesive head has the springs changed to accomadate higher lift.
Reply

Get notified of new replies

To Cheap Aluminum heads?

Old Nov 20, 2004 | 12:07 PM
  #18  
PatsLs1vette's Avatar
PatsLs1vette
Le Mans Master
20 Year Member
 
Joined: Jul 2001
Posts: 9,622
Likes: 16
From: absecon nj
Default

Im using world products sportsman 2 heads on my tpi.(cast iron)
Reply
Old Nov 20, 2004 | 12:21 PM
  #19  
75 Stingray!'s Avatar
75 Stingray!
Drifting
10 Year Member
 
Joined: May 2003
Posts: 1,414
Likes: 2
From: Barrie
Default

Misprint
http://store.summitracing.com/defaul...4922130+305337
Cylinder Head, Aluminum, Natural, 64cc, Chevy, Small Block, Each

These cast iron Vortec cylinder heads will fit 1958 and later small block Chevy engines, and offer a 20 to 40 HP increase over earlier cast iron small block heads.

Cylinder Head Material Cast iron
Reply
Old Nov 20, 2004 | 01:02 PM
  #20  
Fevre's Avatar
Fevre
Race Director
15 Year Member
 
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Default

I agree the l98 alum vette heads are not a bad deal, they use them on the ZZ4 crates. If you plan to go over 400 hp then I would either buy better heads to start or save and buy later.
Reply



All times are GMT -4. The time now is 08:12 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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