Cam Clearance Question

S

snoboardcore

New Member

Mar 30, 2005

276

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New Hampshire

Dec 7, 2005

#1

• Dec 7, 2005

• #1

hey guys quick question. Am i going to be running into clearance problems with the 284hr blower cam from comp cams with my edelbrock heads?
The cam specs are


Intake Exhaust
Valve Adjustment 0 0
Gross Valve Lift 0.533 0.544
Duration At 0.006 Tappet Lift 284 290

Valve Timing At 0.05
Open Close
Intake 2 42
Exhaust 53 -3

These Specs Are For The Cam Installed At 110 Intake CL
Intake Exhaust
Duration At 0.05 224 230
Lobe Lift 0.333 0.34
Lobe Separation 114

 

F

FullAuto

Founding Member

Aug 29, 2002

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Midwest City, Ok

Dec 7, 2005

#2

• Dec 7, 2005

• #2

Is it a stock shortblock? Which Edelbrock head is it? Valve size?

The universal answer is going to be "always check piston to valve clearance when changing cams". With a stock shortblock, I would guess there may be problems on the exhaust side.

 

Rick 91GT

Mustang Master

Nov 29, 1999

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Dec 8, 2005

#3

• Dec 8, 2005

• #3

I think it will be tight, you have to clay it up..

Pay close attention to the outside of the eyebrows/valve reliefs that is where it will hit first. Measure your clearances at that point, you want .080" int, .100 exh minimum to be safe, you can can run tighter but if the springs are not up to par and it floats you'll be in trouble.

Your heads have single springs right? Will they take that cam... have you checked the installed height and presssures on them?

Decided against the Wolverine?

 

S

snoboardcore

New Member

Mar 30, 2005

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New Hampshire

Dec 9, 2005

#4

• Dec 9, 2005

• #4

Rick 91GT said:

Decided against the Wolverine?

Click to expand...

no i didn't decide against it im going with a whole new set up and i dont think the wolverine is going to be able to handle the hp's i wanna make. Im going to be running around 12-14 psi and and switching to the tfs r intake. I know a kid who has the 284hr blower on a 306 with pro topline heads with 2.02 1.60 valves and puts out 508. my valves are only 1.90 1.60 so im thinking with the cam and a new set up springs. It should fit.

 

Rick 91GT

Mustang Master

Nov 29, 1999

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Dec 9, 2005

#5

• Dec 9, 2005

• #5

I'll have the combo to the dyno sometime in Jan with the same wolverine, I'll let you know how it goes....

I know who you are talking about.

Good Luck

 

S

snoboardcore

New Member

Mar 30, 2005

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Dec 9, 2005

#6

• Dec 9, 2005

• #6

Rick 91GT said:

I'll have the combo to the dyno sometime in Jan with the same wolverine, I'll let you know how it goes....

I know who you are talking about.

Good Luck

Click to expand...

what combo are you talking about my current one or the one i am switching too?

 

Rick 91GT

Mustang Master

Nov 29, 1999

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Dec 9, 2005

#7

• Dec 9, 2005

• #7

331, AFR185's, GT-40, SQ-trim, custom a/a intercooler by me, Wolverine cam, 42# inj, 80mm Pro-M...

 

S

snoboardcore

New Member

Mar 30, 2005

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New Hampshire

Dec 9, 2005

#8

• Dec 9, 2005

• #8

Rick 91GT said:

331, AFR185's, GT-40, SQ-trim, custom a/a intercooler by me, Wolverine cam, 42# inj, 80mm Pro-M...

Click to expand...

let me know how that goes because if i dont have to buy another cam than im not goin to. That cam is the same specs as mine correct? because if that cam can perform well ill keep that one. But just a question compared to that 284hr blower cam what would you say is gonna make more power?