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10-19-2020, 09:15 PM | #71 | |
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Re: "Old School" Stocker Cams
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Last edited by Cbrinson47; 10-21-2020 at 10:01 AM. |
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10-20-2020, 04:27 AM | #72 | |
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Re: "Old School" Stocker Cams
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However, I graduate High School in mid 60's. Also ( As my X Wife would explain to you ) = I am generally wrong all the time!
__________________
John Irving 741 Stock 741 Super Stock |
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10-20-2020, 04:03 PM | #73 |
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Re: "Old School" Stocker Cams
I dug up some old data. This is the lifter raise for a Lunati sticker cam for a 302 Z28 from the mid '70s.Let me add that by the time I got to check the cam it was used.
Stan |
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10-20-2020, 04:17 PM | #74 |
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Re: "Old School" Stocker Cams
I remember we put what was called a 7000 plus Cheater cam in a 1868 Dart GTS 340. This was around 1975. Best camshaft way back that I had was a G K that McElroy had something to do with. That was around 1980.
Had Rhodes lifters and 273 adjustable rocker arms. With some pencil neck pushrods compared to todays. Those good old days when tuning was an art and records were set. Paul Haszlauer |
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10-20-2020, 06:54 PM | #75 | |
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Re: "Old School" Stocker Cams
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10-20-2020, 09:51 PM | #77 |
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Re: "Old School" Stocker Cams
I can say,I have ran under the old style rules spring pressure and lift, duration and overlap and it having to check.... and I have and do run under current rules....
I would pick current rules on cam,lifters and springs...been there done the stock pressure spring,which was checked...and duration overlap.... my IHRA pure stock combo 305/160/230 ABSOLUTELY ate springs and valves and it LOVED the taste of them... if nothing went wrong about 35-50 runs heads were coming off for valve job, valves and springs.... present rule stocker... I have one right now in D3 with 3 seasons on engine and same springs... had one with 500 runs on cam and lifters...had 300+repeatedly I will take current rules on springs... however if I built another stocker it would be a roller cam car... no other reason than eliminating cam break in... Last edited by Mike Taylor 3601; 10-20-2020 at 09:55 PM. |
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10-21-2020, 09:39 AM | #79 |
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Re: "Old School" Stocker Cams
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10-21-2020, 09:50 AM | #80 |
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Re: "Old School" Stocker Cams
I would say 150 lbs seat pressure and 350 lbs open pressure max !
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