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  Biggest cam/duration w/o clearance probs?

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Author Topic:   Biggest cam/duration w/o clearance probs?
66 Racer
Journeyman

Posts: 78
From: West Covina, California
Registered: Aug 2001

posted 11-07-2002 07:08 PM     Click Here to See the Profile for 66 Racer   Click Here to Email 66 Racer     Edit/Delete Message   Reply w/Quote
Hey guys,

I building a 302 for my 66 and i wanted to put a comp cams (magnum 280H) 224 duration 512/512 cam but was worried about clearance, i would check it before runnig it but should it clear? I have silvo-lite flat top pistons with 66 small chamber heads(54cc) with stock valves.

What i really is a comp cams extreme energy 268 duration (218 @.50?) which was 509/512 lift, OR possibly a extreme energy 274 cam (224 @ 50?) 519/523 lift.

I want the etreme energy series if those numbers would clear.

Thanks for the imput, this was asimular post of mine from th oterforum but with all the exact numbers,

THanks

---Anthony

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Under Construction 66 Coupe

289 V8 - 600cfm Holley - Tri-Y Headers - Flowmaster 2.5 dual exaust - Centerforce Dual Friction

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Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 11-07-2002 07:10 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Any of the choices you have selected will clear stock style pistons with room to spare.

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Alex Denysenko
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bluestreek
Gearhead

Posts: 1724
From: Athens,GA
Registered: Jul 2001

posted 11-07-2002 07:22 PM     Click Here to See the Profile for bluestreek   Click Here to Email bluestreek     Edit/Delete Message   Reply w/Quote
Out of those cams listed, I like the biggest one.
Since it's a stick shift, I would go with something even bigger. About [email protected] duration and about .520 lift. Those tight chambered heads can handle more cam than you think. Then put in a 3.50-3.70 rear gear and you're good to go.

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1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank and girdle, 5.4 H-beams, Forged slugs, ported TFS alum. heads, ported Stealth 8020 intake, CompCams Xtreme Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi, BFG Drag radials..

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66 Racer
Journeyman

Posts: 78
From: West Covina, California
Registered: Aug 2001

posted 11-08-2002 10:35 PM     Click Here to See the Profile for 66 Racer   Click Here to Email 66 Racer     Edit/Delete Message   Reply w/Quote
Thanks guys,

The cam was the only thing holding me from finishing the motor, since i couldnt do the heads w/o the right springs i needed to see what i was gonna get. I most likly will get the 274 cam, i will consider a bigger one though, i have had other guys recomend a 280-290 duration cam as well.

Thanks

---Anthony

------------------
Under Construction 66 Coupe

289 V8 - 600cfm Holley - Tri-Y Headers - Flowmaster 2.5 dual exaust - Centerforce Dual Friction

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