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Topic: Rocker arm ratios

in Forum: C3 Engines


Rocker arm ratios

Posted: 6/24/05 11:28pm Message 1 of 5
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Anacortes, WA - USA
Joined: 12/16/2002
Posts: 1293
Vette(s): 1979 Red #72 C3 Corvette,T-350,Black interior,air,tilt/tele,K&N.And a 1978 Olds Cutlass 350/350,auto,air,2-dr.,buckets
http://vetteweb.com/tech/0204vet_rockers  Power Multipliers-
How To Add Power To A Small-Block With The Right-Ratio Rocker Arms 
 

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Jon,-Majestic Glass Corvette Club-....Red #72,blk.interior,1979 C3 Corvette-TH350,Weiand,Holley,glass tops,Pioneer,3.55's,K&N,Dynomax,Flowmaster 40's,Energy Suspension,Spicer,VB&P(pics soon); 1978 Olds Cutlass Supreme 350/350,Dk. Blue 2-door Coupe-Hotchkis,PST,K&N,XM...'99 Mitsubishi Galant GTZ V6,black/grey leather,intake,strut bars,tint... |IMG|http://www.msnusers.com/cutlasscorvetteworkinprogress/shoebox.msnw?action=ShowPhoto&PhotoID=63|/IMG|

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Rocker arm ratios

Posted: 6/28/05 6:51pm Message 2 of 5
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CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!
Good info.  And remember if you don't have a stock cam, you need to go with the cam mfg recommendations.  They have already taken the rockers into account.


Rocker arm ratios

Posted: 6/28/05 9:31pm Message 3 of 5
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Anacortes, WA - USA
Joined: 12/16/2002
Posts: 1293
Vette(s): 1979 Red #72 C3 Corvette,T-350,Black interior,air,tilt/tele,K&N.And a 1978 Olds Cutlass 350/350,auto,air,2-dr.,buckets
[QUOTE=kstyer]Good info.  And remember if you don't have a stock cam, you need to go with the cam mfg recommendations.  They have already taken the rockers into account.[/QUOTE] If thats the case,then I may have a problem! When I got the 79,I found that one of the previous owners had installed a cam in my non-numbers matching 350.Dont know when or what 350 was added(I tried to track the number),or what cam & specs.I'm thinking of finding a dyno somewhere to check it out. Any suggestions here?


Jon,-Majestic Glass Corvette Club-....Red #72,blk.interior,1979 C3 Corvette-TH350,Weiand,Holley,glass tops,Pioneer,3.55's,K&N,Dynomax,Flowmaster 40's,Energy Suspension,Spicer,VB&P(pics soon); 1978 Olds Cutlass Supreme 350/350,Dk. Blue 2-door Coupe-Hotchkis,PST,K&N,XM...'99 Mitsubishi Galant GTZ V6,black/grey leather,intake,strut bars,tint... |IMG|http://www.msnusers.com/cutlasscorvetteworkinprogress/shoebox.msnw?action=ShowPhoto&PhotoID=63|/IMG|

Rocker arm ratios

Posted: 6/28/05 9:35pm Message 4 of 5
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CUYAHOGA FALLS, OH - USA
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Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!
You could put a dial indicator on the rocker at the center of the oil hold above the push rod.  Then turn the engine over by hand and watch the indicator.  This will tell you what the lift is on the cam, and you can go from there.


Rocker arm ratios

Posted: 6/28/05 10:24pm Message 5 of 5
Former Member
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Anacortes, WA - USA
Joined: 12/16/2002
Posts: 1293
Vette(s): 1979 Red #72 C3 Corvette,T-350,Black interior,air,tilt/tele,K&N.And a 1978 Olds Cutlass 350/350,auto,air,2-dr.,buckets
[QUOTE=kstyer]You could put a dial indicator on the rocker at the center of the oil hold above the push rod.  Then turn the engine over by hand and watch the indicator.  This will tell you what the lift is on the cam, and you can go from there.[/QUOTE] I think thats getting to a point where I havent gone to before.


Jon,-Majestic Glass Corvette Club-....Red #72,blk.interior,1979 C3 Corvette-TH350,Weiand,Holley,glass tops,Pioneer,3.55's,K&N,Dynomax,Flowmaster 40's,Energy Suspension,Spicer,VB&P(pics soon); 1978 Olds Cutlass Supreme 350/350,Dk. Blue 2-door Coupe-Hotchkis,PST,K&N,XM...'99 Mitsubishi Galant GTZ V6,black/grey leather,intake,strut bars,tint... |IMG|http://www.msnusers.com/cutlasscorvetteworkinprogress/shoebox.msnw?action=ShowPhoto&PhotoID=63|/IMG|

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