|
Author
|
Topic: Cam Questions
|
GTRocks
Gearhead Posts: 3617
From: Lusby, MD
Registered: Jun 99
|
posted 01-31-2004 11:21 AM
   
I'm starting to put together the pieces to redo my 289 in the '66. I came across a pretty good deal on some 351 heads (thanks, Fishtail!) with a 5 angle valve job, bare. I'm looking into what pieces to put together with that set of heads. They are 1.94/1.60's. I really want a car that will give me a mean idle (lub, lub, lub), but is still very driveable on the street. I want it to be strong, but I probably won't see much if any track time. It's a weekend toy. Anyway, I'm looking for advice on cams. I read the archives and there's some great detail about what the specs mean, but not having driven the various lift/duration combinations, I'm having a hard time applying that information to what it would do in the car as far as driveability. I'm also concerned about the amount of lift. I can also pick up a 1.7 roller rocker set, but I seem to remember reading somewhere that 1.7's are too high for this engine. I have stock spec (it has been rebuilt) pistons, so I'm worried about valves hitting the pistons. Anyone give advice here?
IP: Logged |
Fastymz
Moderator Posts: 18590
From: Reno Nv USA MEM#1240
Registered: Apr 2001
|
posted 01-31-2004 01:34 PM
Dave I'm not a cam expert but I've asked enough question to know that I need to ask more questions.  
So with that said, I'd vote for the 270H cam. You'll hear some cam at idle and will have a nice power band.
As for the lift they are .500 lift which I'd think would clear stock pistons.------------------
SCOOP oddly obsessed with big scoops on little Mustangs 2.26 60'S
14.9 @ 90.86MPH 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
IP: Logged |
GTRocks
Gearhead Posts: 3617
From: Lusby, MD
Registered: Jun 99
|
posted 01-31-2004 01:51 PM
even with 1.7 roller rockers?
IP: Logged |
Fastymz
Moderator Posts: 18590
From: Reno Nv USA MEM#1240
Registered: Apr 2001
|
posted 01-31-2004 01:56 PM
Dave I don't know for sure ?
Really thats one Alex could tell you, email him or call he'll be back on Monday. That will be an easy question for him.------------------
SCOOP oddly obsessed with big scoops on little Mustangs 2.26 60'S
14.9 @ 90.86MPH 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
IP: Logged |
V8 Thumper
Gearhead Posts: 4376
From: Arizona
Registered: Dec 2001
|
posted 01-31-2004 03:30 PM
Comp Cams (or any cam grinder) will tell you to do a piston/valve clearance check. With 1.7:1 rockers, it'll put your lift closer to .530  That, and along with the substantially larger intake valves trying to clear a piston machined for 1.78 intake valves, you've dramatically altered the clearances. Chances are you'll be fine, I'd still do a p/v check. Just my $.02  ------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9" All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html
IP: Logged |
mustangs68
Moderator Posts: 22182
From: Buckroe Beach Va MCA#39406 M&M #12 Member Mustang Club of Tidewater
Registered: May 99
|
posted 01-31-2004 03:32 PM
I have that cam with windsor jrs an 1.7 rollers..that cam talks
IP: Logged |
Firechief1400
unregistered
|
posted 02-02-2004 04:48 PM
I just installed the 270H cam in a 1969 351W can't wait to bump it over. Maybe this weekend. Seems like a lot of people choose that cam.
IP: Logged |
GTRocks
Gearhead Posts: 3617
From: Lusby, MD
Registered: Jun 99
|
posted 02-04-2004 09:26 PM
Alex? Steve? Buehler? Buehler?
IP: Logged |
Moneymaker
Administrator Posts: 25539
From: Lyons, IL, USA
Registered: May 99
|
posted 02-04-2004 11:44 PM
You have mail.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,& '04
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
Mustangsandmore Forums
UBBFriend: Email This Page to Someone! 
