heads
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Freshman User
Joined: Nov 2000
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heads
Does anyone know what kind of heads would be a good performance upgrade to a 351w and keep it a daily driver? Assuming that you plan to upgrade the carb, exhaust system, cam, etc. Would simply polishing the stock heads and using new springs, lifters, etc. provide a significant increase in performance (just something noticable off road and towing) or do you need more radical modifications?
Any advice/input/experiences woudl be appreciated.
thanks.
jason
Any advice/input/experiences woudl be appreciated.
thanks.
jason
Elder User
Joined: Jan 2000
Posts: 966
Likes: 2
From: Crooked River Ranch, OR
heads
>Does anyone know what kind of
>heads would be a good
>performance upgrade to a 351w
>and keep it a daily
>driver?
Assuming that you plan
>to upgrade the carb, exhaust
>system, cam, etc.
If your going to do ALL the above then I would say don't waste your money unless you increase your valve sizes and open up the exhaust side of the head. Your best bet would be to probably purchase a set of "World Performance" cast iron heads for around $800. a set. They are advertized as good for up to 100 HP increase.
Would simply
>polishing the stock heads and
>using new springs, lifters, etc.
>provide a significant increase in
>performance
I would say "no" to "significant". But if you stay with a small vacuum operated secondary carb (600-650 CFM) and a "small" cam change (195-204 duration @ .050) your stock heads will be fine.
(just something noticable off
>road and towing) or do
>you need more radical modifications?
>
>
>Any advice/input/experiences woudl be appreciated.
>
>thanks.
>jason
Deen Hylton
Ford F250 460 C-6, K&N, Headers, Dual Exh.,Comp. Cams,Shift Kit
Pioneer CD w/Bose Speakers.
Other Passion: Blown 77 Corvette (Sorry Guys/Gals)
How I can afford to Drive the above: 93 GEO Metro
>heads would be a good
>performance upgrade to a 351w
>and keep it a daily
>driver?
Assuming that you plan
>to upgrade the carb, exhaust
>system, cam, etc.
If your going to do ALL the above then I would say don't waste your money unless you increase your valve sizes and open up the exhaust side of the head. Your best bet would be to probably purchase a set of "World Performance" cast iron heads for around $800. a set. They are advertized as good for up to 100 HP increase.
Would simply
>polishing the stock heads and
>using new springs, lifters, etc.
>provide a significant increase in
>performance
I would say "no" to "significant". But if you stay with a small vacuum operated secondary carb (600-650 CFM) and a "small" cam change (195-204 duration @ .050) your stock heads will be fine.
(just something noticable off
>road and towing) or do
>you need more radical modifications?
>
>
>Any advice/input/experiences woudl be appreciated.
>
>thanks.
>jason
Deen Hylton
Ford F250 460 C-6, K&N, Headers, Dual Exh.,Comp. Cams,Shift Kit
Pioneer CD w/Bose Speakers.
Other Passion: Blown 77 Corvette (Sorry Guys/Gals)
How I can afford to Drive the above: 93 GEO Metro
Elder User
Joined: Feb 2000
Posts: 601
Likes: 1
From: South Sioux City, NE USA
heads
This article is a comparison of small block heads. Check it out.
[http://www.fordmuscle.com/archives/2000/05/heads/index.shtml]
Roger Lane
Test Analyst
Sr. Automated Test Engineer
IBP, Inc.
[http://www.fordmuscle.com/archives/2000/05/heads/index.shtml]
Roger Lane
Test Analyst
Sr. Automated Test Engineer
IBP, Inc.
Posting Guru
Joined: Dec 1999
Posts: 1,903
Likes: 2
From: Copley, OH
heads
Hit the swap meets and find a set of iron GT-40 heads. there's lots of them out there as people have switched their Mustangs over to aluminum. Look for 3 lines on the end of the casting. If you pay $600 you'll pay too much.
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