Re: 327 300 1965 stocker
 

Jim, we know what good 327-275's make so what we're looking at is....

-the difference between a good AFB and a good QJet
-what (if any) difference there is in the cam (.399/.399 on the 300 & .390/.410 on the 275)
-what (if any) difference there is in a good AFB intake compared to a good Qjet intake

The 327/300 @ 265 isn't horrible. But the 327/250 is the same engine (except for the 4G) and intake and it's @ 245. I don't see the AFB covering the 20 hp difference, even with the intake being a bit better on the AFB.....given the current state of Stocker intake technology.

But .60-.70 under should be no problem for a decent 327/300, though. -Al

Re: 327 300 1965 stocker
 

Al, it's 260 in a Chevelle with iron heads ..That's 60 pounds lighter in !/SA..Something anyway.

Re: 327 300 1965 stocker
 

Wow ! Wonder how much the 283 would make with the correct intake manifold and not the BOGUS one ?? I need one of these FRIENDLY Dynos so I can feel better about my lil 305..... CHEERS. .....!!!!!!

Re: 327 300 1965 stocker
 

10 - 15 years ago = 1.5 x factored HP in Stock
AND.....................= 2.0 x factored HP in SS

NOW DAYS: Better figure at least 10 or 15 % Higher.
To be competitive is getting tougher AND more expensive
every darn year!

If all you want is 6 or 7 under in full race mode = 375 would probably do it with that combo

If the two fast I/SA last week at Winters had meet in later rounds = It would have
taken at the very least 1.15 to 1.20 to be even be competitive. (I know the cars and
my boy owns one of them)

Re: 327 300 1965 stocker
 

Yes...not sure what body style Jim is referencing, though. The valve notches are the struggle, for sure. :) -Al

Re: 327 300 1965 stocker
 

You know nothing about dyno's. Stick to what you know.....sewing.

Re: 327 300 1965 stocker
 

I have had a rough day, but seeing this post just made me feel all warm and fuzzy inside.......Let’s just say I know as much about Dynos as you know about LEGAL Buick Stocker oil pans...RING A BELL ?????.......For those in the dark, HP HUNTER is the genius that attempted to fix his Stocker oiling issues with a customized ,floor extended oil pan.. Better stick with what you know........bull****ting racers that don’t know any better with all your flow figures and assorted calculations......YOUR MOVE BUD........

Re: 327 300 1965 stocker
 

Just curious...
How do Aluminum and Iron Headed Lt-1 Engines fare in Stock?
What power levels are they getting out of them?

D

Re: 327 300 1965 stocker
 

The Stock world champion’s car is an LT-1 powered ‘98 Firebird.

She can drive and the car is fast but the LT-1’s have been hit many times with HP putting them at a disadvantage to some other traditional older cars and some new combos.

The LT-1 benefitted from a low HP factor for years and could dominate classes. There not slow by any means but the HP factor today makes it tough.

That’s for aluminum headed combos. I know nothing about the iron headed versions.
I raced one for a couple seasons.

Re: 327 300 1965 stocker
 

I see your not comfortable with the math associated with engine design and racing. Like I said stick to what you know.