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  #61 (permalink)  
Old 02-10-2011, 10:23 AM
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Actual GM Engineering Reports May 1968

This following link will provide actual dyno numbers by the GM engineers. This is Not opinion, It Is, factual information that I have no reason not to believe. I rode shotgun with my brother in Daddy's '68 SS396(325hp) Chevelle during many street races back in the day. He would not race a 302 Camaro because he had seen a brand new one walk off and wave bye-bye to his buddy's 396 375hp Chevelle. olnolan Here is the link;
http://www.yearone.com/enthusiast/re...bly/engass.htm

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  #62 (permalink)  
Old 02-10-2011, 10:24 AM
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How about everyone quit ruining future search results by filling these threads with crap. Argue in the lounge or by pms.
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  #63 (permalink)  
Old 02-10-2011, 10:29 AM
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Quote:
Originally Posted by cobalt327
I wonder how it happened that a '68 Camaro would be the 'original' Old Reliable and would precede the others?
After considering this for a minute, I'm thinking the cars are likely totally unrelated except by name- also likely there's no trademark on "Old Reliable", AFAIK. So anyone could (and probably can) use the name as they please.
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  #64 (permalink)  
Old 02-10-2011, 10:37 AM
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Quote:
Originally Posted by RippinRon
How about everyone quit ruining future search results by filling these threads with crap.
You mean by posting something that adds nothing of technical interest or value to the discussion? I'm reminded of something about glass houses...

AFA the "ruining future search results" of any given thread, the merits will be decided by those who look to this thread to find out info on the 265 SBC.

The relative interest in the SBC 265 engine to the hotrodding public at large is minimal at best. The info has already been put forth that is germane to the OP's question, so there's nothing inherently wrong w/discussions outside the limited interest of the 265 SBC.

Additional info will inevitably move in the direction of more common, more easily modified engines. Thus the discussion on the 302 SBC.
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  #65 (permalink)  
Old 02-10-2011, 10:59 AM
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Quote:
Originally Posted by ap72
I love super stock racing, but it has very little to do with a stock engine. They do make some incredible power for using "stock" parts though. The suspension and drivetrain is even more impressive.
In a way your correct. Look at the many stock & stock eliminator classes. In many classes the camshaft must be within stock specs as far as lift and the heads are " NO porting allowed" . One would think thats where they'd make all the power in theory. The point is that they're making that kinda HP with the stock spec parts.
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  #66 (permalink)  
Old 02-10-2011, 11:04 AM
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Quote:
Originally Posted by prostreet6t9
In a way your correct. Look at the many stock & stock eliminator classes. In many classes the camshaft must be within stock specs as far as lift and the heads are " NO porting allowed" . One would think thats where they'd make all the power in theory. The point is that they're making that kinda HP with the stock spec parts.
"stock spec" that's an interesting label. If it was just stock it wouldn't be one of the more expensive forms of racing for an amateur to get into. Its one of those "cost cutting" regulations that greatly increased the cost. It's all part of the fun though.
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  #67 (permalink)  
Old 02-10-2011, 11:08 AM
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Quote:
Originally Posted by prostreet6t9
In a way your correct. Look at the many stock & stock eliminator classes. In many classes the camshaft must be within stock specs as far as lift and the heads are " NO porting allowed" . One would think thats where they'd make all the power in theory. The point is that they're making that kinda HP with the stock spec parts.
You can only imagine some of the things we've tried over the years. While the engine is obviously important some of the things in the rest of the drivetrain are out there as well.
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  #68 (permalink)  
Old 02-10-2011, 11:13 AM
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Any car in the '60's would have ruled the world w/nothing more than modern rubber. Add shocks and springs, etc. to that, and there'd have been songs written about them.
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  #69 (permalink)  
Old 02-10-2011, 11:26 AM
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The Engineering Documents

http://www.yearone.com/enthusiast/re...testreport.htm

http://www.yearone.com/enthusiast/re...estresults.htm

What no comment? Yeah, I had to pick my jaw back up too. olnolan
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  #70 (permalink)  
Old 02-10-2011, 11:38 AM
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Quote:
Originally Posted by OLNOLAN
...I had to pick my jaw back up too.
I AM surprised the 180 degree headers didn't do anything more that that- but it didn't sound like they were developed fully.

The minor gains between carbs surprises me a little less. Much of that is quality of the A/F mix as much as quantity, and the larger carb would have better metering at max RPM compared to the 600 cfm carb- which would be at its limit earlier.
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  #71 (permalink)  
Old 02-10-2011, 11:59 AM
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Quote:
Originally Posted by ap72
"stock spec" that's an interesting label. If it was just stock it wouldn't be one of the more expensive forms of racing for an amateur to get into. Its one of those "cost cutting" regulations that greatly increased the cost. It's all part of the fun though.
Very interesting indeed! Thats the point How do you take a motor with a small camshaft and a non-ported 2.02 fuelie head and make that kinda of power?
In theory it shouldnt run that good. Again theory dont put numbers on the board. You are correct about the cost of those classes.. to rich for my blood
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  #72 (permalink)  
Old 02-10-2011, 12:01 PM
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Quote:
Originally Posted by OLNOLAN
Just shows that they were capable engines, just not in stock form. They did win a lot of races at one time, and no one can argue that fact.


FWIW I am actually in the process of building a 302 myself. It doesn't mean you can just buy into the hype because you want to believe its true though.
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  #73 (permalink)  
Old 02-10-2011, 12:02 PM
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Quote:
Originally Posted by engineczar
You can only imagine some of the things we've tried over the years. While the engine is obviously important some of the things in the rest of the drivetrain are out there as well.
I bet! I do quite a few rearends in the area for those classes and I always hit the guys up on how they make that kinda power and run the numbers. For some reason they always look at me and smile
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  #74 (permalink)  
Old 02-10-2011, 12:06 PM
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Quote:
Originally Posted by prostreet6t9
Very interesting indeed! Thats the point How do you take a motor with a small camshaft and a non-ported 2.02 fuelie head and make that kinda of power?
In theory it shouldnt run that good. Again theory dont put numbers on the board. You are correct about the cost of those classes.. to rich for my blood

It depends which theories you're subscribing too, there are many ways to work around those rules, its not simply a stock engine, if it was it would be dirt cheap to race in it.
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  #75 (permalink)  
Old 02-10-2011, 12:35 PM
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Thankfully over the years they've relaxed some of the rules. The cams are just stock lift now, any duration which has helped in the area of broken rocker arms. The old cams looked like Acme threads which were brutal on the valve train. The corporate tranny rule helped a lot. Fitting 904 internals into the 727 case was stupid expensive. The any stock appearing valve rule is nice as well.
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