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post #1 of 6 (permalink) Old 01-01-07, 05:53 PM Thread Starter
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Stock cam specs

Would anyone happen to know the STOCK camshaft specs on a '72 cleveland 4v? Thanx.



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post #2 of 6 (permalink) Old 01-02-07, 04:46 PM
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Re: Stock cam specs

Couldn't find any in my book, sorry. I've got the specs. for valves, pistons intake, exhaust etc.
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post #3 of 6 (permalink) Old 01-02-07, 04:49 PM Thread Starter
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Re: Stock cam specs

yeah I know all that stuff, just playin around on the desktop dyno I got for christmas, it doesnt really matter, just something I'd like to know.


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post #4 of 6 (permalink) Old 01-03-07, 12:07 AM
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Re: Stock cam specs

IO 18º BTDC @ 0.004
IC 70º ABDC @ 0.004
EO 81º BBDC @ 0.006
EC 19º ATDC @ 0.006

Intake Duration 268 º .427 Lift
Exhaust Duration 280 º .453 Lift

So according to my desktop cam calculator!!!
Lobe separation @ 118
Intake centreline @ 116
Overlap period 37 º
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post #5 of 6 (permalink) Old 01-03-07, 08:23 AM Thread Starter
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Re: Stock cam specs

thanx alot man.


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post #6 of 6 (permalink) Old 01-08-07, 01:34 PM Thread Starter
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Re: Stock cam specs

ok same engine, but i need to know what the rockerarms should be torqued down to. They are the stock bolt down style. My crappy haynes manual is very misleading and said 45lbs, but what it meant was 45lbs for shaft mounted rockers on big blocks, even though at the beginning of the section it says "all engines". Lets just say a have some work ahead of me backing out a broken bolt. Thanx.


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