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Author Topic:   which brand of head?
smblk t-bolt
Journeyman

Posts: 93
From: port alberni BC Canada
Registered: Apr 2002

posted 08-25-2002 05:49 AM     Click Here to See the Profile for smblk t-bolt   Click Here to Email smblk t-bolt     Edit/Delete Message   Reply w/Quote
I can get some edelbrock aluminum performer rpm heads for close to the same price as windsor sr. cast iron heads....which is the better head?is aluminum okay for street use?

thanx
ron
64 fairlane
lots of fiberglass
even more bondo

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the last dive
Gearhead

Posts: 147
From: sydney australia
Registered: Dec 2001

posted 08-25-2002 06:45 AM     Click Here to See the Profile for the last dive     Edit/Delete Message   Reply w/Quote
i have alloy heads on my car and they are no problem,what do you want your engine to do,depends on what heads you need

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smblk t-bolt
Journeyman

Posts: 93
From: port alberni BC Canada
Registered: Apr 2002

posted 08-25-2002 05:12 PM     Click Here to See the Profile for smblk t-bolt   Click Here to Email smblk t-bolt     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by the last dive:
i have alloy heads on my car and they are no problem,what do you want your engine to do,depends on what heads you need

I'm putting in a 351w and want to be able to run mid/high 12's a couple of times a year I go to the track, but mostly its driven on the street.

ron

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the last dive
Gearhead

Posts: 147
From: sydney australia
Registered: Dec 2001

posted 08-25-2002 05:20 PM     Click Here to See the Profile for the last dive     Edit/Delete Message   Reply w/Quote
there are people out there with far more knowledge than myself but i think you would need more than rpm heads!

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steve'66
Gearhead

Posts: 9533
From: Sonoma,CA,USA
Registered: Mar 2000

posted 08-25-2002 07:16 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Ron,

Yes the RPM heads are better than cast iron Windsor heads. They'll let you run .5-1 more compression for starters.

SteveW

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stang106
Gearhead

Posts: 786
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001

posted 08-25-2002 11:01 PM     Click Here to See the Profile for stang106   Click Here to Email stang106     Edit/Delete Message   Reply w/Quote
I thought that aluminum heads absorbed or conducted heat better than cast iron, taking power out of the combustion process, neccesitating a 0.5 to 1.0 rise in compression ratio?
Dave

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V8 Thumper
Gearhead

Posts: 4681
From: Phoenix, Arizona
Registered: Dec 2001

posted 08-25-2002 11:10 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
I'm not 100% certain on this, but I don't believe aluminum absorbs heat any faster than iron, just aluminum moves a whole bunch more than iron. Expansion rates are like three times what cast heads will see, but I've been wrong before...

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steve'66
Gearhead

Posts: 9533
From: Sonoma,CA,USA
Registered: Mar 2000

posted 08-25-2002 11:25 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Trust me a rpm headed 351w at 10-1 comp, with a 282s cam and rpm intake topped w/ a 750 holley is good for 12 flats/high 11s. After you get it to hook.

SteveW

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Fastymz
Moderator

Posts: 21275
From: Reno Nv USA M&M#1240
Registered: Apr 2001

posted 08-26-2002 01:53 AM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by steve'66:
Trust me a rpm headed 351w at 10-1 comp, with a 282s cam and rpm intake topped w/ a 750 holley is good for 12 flats/high 11s. After you get it to hook.

SteveW


Were else can you get tried and TURE info like this.
I'm going to do it as soon as I can.

SCOOP

------------------

2.634 60's
[email protected] 1/8 mile

65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede.

https://mustangsandmore.com/ubb/Fastymz.html

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smblk t-bolt
Journeyman

Posts: 93
From: port alberni BC Canada
Registered: Apr 2002

posted 08-26-2002 09:14 PM     Click Here to See the Profile for smblk t-bolt   Click Here to Email smblk t-bolt     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by steve'66:
Trust me a rpm headed 351w at 10-1 comp, with a 282s cam and rpm intake topped w/ a 750 holley is good for 12 flats/high 11s. After you get it to hook.

SteveW


thanx for the info...but are aluminum heads okay for long term street use/lots of miles?

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steve'66
Gearhead

Posts: 9533
From: Sonoma,CA,USA
Registered: Mar 2000

posted 08-26-2002 09:29 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
In a word,

YES

Most all modern engines are aluminum headed, many have aluminum blocks too.

SteveW

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smblk t-bolt
Journeyman

Posts: 93
From: port alberni BC Canada
Registered: Apr 2002

posted 08-27-2002 12:09 AM     Click Here to See the Profile for smblk t-bolt   Click Here to Email smblk t-bolt     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by steve'66:
In a word,

YES

Most all modern engines are aluminum headed, many have aluminum blocks too.

SteveW


DUH! do I feel dumb....I never thought about it...I guess lots of 4 bangers have been aluminum headed for years...yikes

64 fairlane
lots of fiberglass
even more bondo

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JAAZZY
Gearhead

Posts: 836
From: Bay Area, CA
Registered: Apr 2001

posted 08-27-2002 01:53 PM     Click Here to See the Profile for JAAZZY     Edit/Delete Message   Reply w/Quote

If it makes you feel any better I have been using the first TFS aluminum heads for almost 10 years on a couple of different motors. The only thing I've changed over the years are the springs for diferent cams. I've never had a problem related to the heads.

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