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Author
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Topic: 268 v 270 cam
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Calcat
Journeyman Posts: 75
From: Los Angeles, CA
Registered: Feb 2002
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posted 10-06-2002 03:49 AM
   
Changing cams and could use some recommendations. .030 over 302 63cc chevy valves, 68 heads I ported. K code manifolds, stealth intake/600vs. Stock converter and 3.00 gears for now. I'm leaning toward the 268H (sorry Alex) because I think the 270 wants more converter, more cr, and steeper gears. 68 Cougar spends 90% of time on streets/freeway. Any thoughts?
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Fastback68
Gearhead Posts: 1746
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 10-06-2002 10:13 AM
Stored away somewhere in my archives is a good reason for getting a 268 over a 270 for an old 289/302. Sorry I can't remember the reason, but I remember being convinced.
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sigtauenus
Gearhead Posts: 1824
From: Beaufort, SC
Registered: Jun 2000
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posted 10-06-2002 02:32 PM
I've ran a 268H in my 302 for the past 7 (80,000 miles) years or so. It has a good idle, smooth with just a nice little hint of roughness to let you know its not stock. I never really utilized its full potential though, kept stock exhaust manifolds on it and a single plane 4-v intake and 4100 carb. I have one of those digital cameras that takes video with audio, so if you want, I could record a couple seconds of it idling and email it to you, but I won't be home until around Thanksgiving. Right now I'm, ahem, trusting my wife to keep the gears lubed every couple weeks.I am very please with it, but am probably going to go with the 270S for the next rebuild. I figured I'd go with Alex's recipe, with the full up headers, shelby intake/carb, high compression,etc, etc.
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ice'68
Gearhead Posts: 127
From: Fresno, CA
Registered: Apr 2002
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posted 10-06-2002 02:32 PM
I'd go with the 268H if it is an old 289/302. With your gearing and use, it'd work out much better.[This message has been edited by ice'68 (edited 10-06-2002).]
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MidLifCrisis
Gearhead Posts: 282
From: USA
Registered: Oct 2001
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posted 10-06-2002 05:26 PM
quote:
Originally posted by sigtauenus:
I've ran a 268H in my 302 for the past 7 (80,000 miles) years or so. It has a good idle, smooth with just a nice little hint of roughness to let you know its not stock. I never really utilized its full potential though, kept stock exhaust manifolds on it and a single plane 4-v intake and 4100 carb.
I am very please with it, but am probably going to go with the 270S for the next rebuild. I figured I'd go with Alex's recipe, with the full up headers, shelby intake/carb, high compression,etc, etc.
Sigtauenus:
Did you ever time you car on the track with this combo? What kind of times did it turn if you did?
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sigtauenus
Gearhead Posts: 1824
From: Beaufort, SC
Registered: Jun 2000
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posted 10-06-2002 07:26 PM
quote:
Originally posted by MidLifCrisis:
Sigtauenus:
Did you ever time you car on the track with this combo? What kind of times did it turn if you did?
Nope, never took it to the track. It has nice acceleration for an engine built at home with spare parts, but probably nothing impressive.
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