Exhaust tongue in Small block Heads
#2821758
09/17/20 12:00 AM
09/17/20 12:00 AM
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Joined: Jan 2003
Posts: 6,149 Melbourne , Australia
LA360
OP
master
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OP
master
Joined: Jan 2003
Posts: 6,149
Melbourne , Australia
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Has anyone tried them? I am going to dyno test a factory headed 360 later this year (once things open up again down here), and thought I'd try them.
Alan Jones
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Re: Exhaust tongue in Small block Heads
[Re: LA360]
#2821869
09/17/20 12:43 PM
09/17/20 12:43 PM
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Joined: Jan 2003
Posts: 14,514 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,514
So. Burlington, Vt.
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Have you come up with something that shows an improvement on the flow bench?
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Exhaust tongue in Small block Heads
[Re: fast68plymouth]
#2822050
09/17/20 08:31 PM
09/17/20 08:31 PM
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Joined: Jan 2003
Posts: 6,149 Melbourne , Australia
LA360
OP
master
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OP
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Joined: Jan 2003
Posts: 6,149
Melbourne , Australia
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No flow testing at all on these heads. I've owned factory small block heads from years ago that had the floor welded up.
I was going to laser cut something like these port plates for Ford Cleveland exhaust ports.
Alan Jones
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Re: Exhaust tongue in Small block Heads
[Re: Cab_Burge]
#2822108
09/17/20 11:13 PM
09/17/20 11:13 PM
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Joined: Nov 2009
Posts: 3,082 St. Paul , Mn.
tubtar
master
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master
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
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Ford over did the ports on the 351C 4 barrel heads, they needed help on the exhaust flow by closing the up, I will really be surprised if closing up the SB Mopar heads helps them flow better This thread intrigued me , so I got to looking. MPG head service still makes those plates , but I could not find any other brand that uses them besides Ford. Their cam grinding arm , Cam Research showed a flat tappet cam device that breaks in the cam on the bench that had me very interested. It is done in an oil bath and the spring pressure is ramped up as the process goes on................as they like to say in engineering , " it works on paper ". 60.00 to break in your cam and lifters seems like a bargain in time savings alone , but I suspect that it is brand specific as they only offered the service for Ford cams..
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Re: Exhaust tongue in Small block Heads
[Re: Gavin]
#2822882
09/20/20 12:00 PM
09/20/20 12:00 PM
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Joined: Nov 2007
Posts: 21,844 Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,844
Kirkland, Washington
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Their cam grinding arm , Cam Research showed a flat tappet cam device that breaks in the cam on the bench that had me very interested. It is done in an oil bath and the spring pressure is ramped up as the process goes on................as they like to say in engineering , " it works on paper ". 60.00 to break in your cam and lifters seems like a bargain in time savings alone , but I suspect that it is brand specific as they only offered the service for Ford cams..
What a great idea...and a bargain, yes it would be great to have this for Mopars!! YouTube link I’m skeptical for the same reason you don’t mix used lifters after a disassembly. You also break in a used cam (if you ever re-use a cam) again if installed on a different engine. There are differences in the blocks that result in slightly different contact patches between lobes and lifter faces.
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