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Author
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Topic: Edelbrock RPM heads & Z-cam?
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WeStBaY5.0
unregistered
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posted
 
can this clear? if its possible what kind of rockers? thanks
i forgot to mention, its a 306
[ March 08, 2005, 09:02 AM: Message edited by: WeStBaY5.0 ]
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AJBlackGT
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Member # 3936
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posted
 
Most likely not on a stock shortblock...clay the pistons to see if it clears, if not, just notch the pistons
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90 Notch
Posts: 1896 | From: Sacramento | Registered: Dec 2003
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JohnB
Tech Moderator
Member # 969
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posted
If it's the 2.02 heads, forget it. You MIGHT get by with the others and retarding the cam 2*.
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1965 Shelby Cobra
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2012 F150 Raptor
2020 GT500
Posts: 6525 | From: Orlando FL/Redding CA | Registered: Mar 2002
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Fostang
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Member # 3752
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posted
i'ma havta go with nah...
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67' Fastback TT 408
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Posts: 3013 | From: Stockton/Danville | Registered: Nov 2003
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WeStBaY5.0
unregistered
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posted
its a 306...
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gercolla1
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Member # 3068
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posted
quote:
Originally posted by JohnB:
If it's the 2.02 heads, forget it. You MIGHT get by with the others and retarding the cam 2*.
Does retarding the cam,say like 4deg.ret. decrease the likely hood even more than 2deg.ret?
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Sf Bay Area
Posts: 2171 | From: Sampan San Francisco | Registered: Jul 2003
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93PONY
Mr. Valve Events
Member # 60
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posted
The Z only has 4 degrees of overlap. It *should* fit without issues on a 306 with aftermarket pistons.
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4266 | From: Fair Oaks, CA | Registered: Nov 2000
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WeStBaY5.0
unregistered
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posted
quote:
Originally posted by 93PONY:
The Z only has 4 degrees of overlap. It *should* fit without issues on a 306 with aftermarket pistons.
see, i already have the Zcam on the 306. i just want to see what kind of heads will fit without any clearance problems, sorry for not making it clear.
i just dont wanna go in too deep and take out the cam so i can put some heads on...
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93PONY
Mr. Valve Events
Member # 60
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posted
If you're already running an inline 20 degree head w/a 1.90 intake valve & clearing, the 2.02 valve will clear.
FYI, TW heads are not an inline 20 degree head.
AFR's, Edelbrocks, GT40s, Stock, Holley's, etc, etc are all 20 degree inline heads.
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4266 | From: Fair Oaks, CA | Registered: Nov 2000
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WeStBaY5.0
unregistered
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posted
yes, i currently have the 306 with the z cam and stock heads, since these are "inline 20 degree heads" and i dont have clearence problems, i will not have any problems with 2.02 heads that are not Tw right?
this means that i can run afr, edelbrock or gt40s with no problem right?
sorry, im just a little slow learner. ![[Wink]](wink.gif)
thanks
Danny
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93PONY
Mr. Valve Events
Member # 60
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posted
quote:
Originally posted by WeStBaY5.0:
this means that i can run afr, edelbrock or gt40s with no problem right?
thanks
Danny
Yep!
Hell, you could run Victor Jr's if you wanted. (2.05 valve)
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4266 | From: Fair Oaks, CA | Registered: Nov 2000
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WeStBaY5.0
unregistered
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posted
thanks for your help.
Danny
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WeStBaY5.0
unregistered
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posted
now that we have all that figured, i have one more question what kind of rockers should i put on em, i have 1.72... or does it matter?
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93PONY
Mr. Valve Events
Member # 60
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posted
As far as piston to valve goes, if the 1.6's clear, 1.72's WILL clear.
As far as the stock valvesprinsg on most of these heads go....most will not be able to handle the added lift of the Z with 1.7's. You will hit coil-bind.
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4266 | From: Fair Oaks, CA | Registered: Nov 2000
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WeStBaY5.0
unregistered
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posted
quote:
Originally posted by 93PONY:
As far as piston to valve goes, if the 1.6's clear, 1.72's WILL clear.
As far as the stock valvesprinsg on most of these heads go....most will not be able to handle the added lift of the Z with 1.7's. You will hit coil-bind.
what kind of valvesprings would you recommend?
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93PONY
Mr. Valve Events
Member # 60
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posted
quote:
Originally posted by WeStBaY5.0:
quote:
Originally posted by 93PONY:
As far as piston to valve goes, if the 1.6's clear, 1.72's WILL clear.
As far as the stock valvesprinsg on most of these heads go....most will not be able to handle the added lift of the Z with 1.7's. You will hit coil-bind.
what kind of valvesprings would you recommend?
With 10psi & under the stock Edelbrock valvesprings will work.
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4266 | From: Fair Oaks, CA | Registered: Nov 2000
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