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CLASS RACER FORUM (https://classracer.com/classforum/index.php)
-   Stock and Super Stock (https://classracer.com/classforum/forumdisplay.php?f=3)
-   -   End of year HP (https://classracer.com/classforum/showthread.php?t=68465)

Billy Nees 12-22-2017 11:35 AM
Re: End of year HP
 
Hmmmmmmmmmmmmmmmmmmm.............................. .........................................

Frank Castros 12-22-2017 04:50 PM
Re: End of year HP
 
Haven't the aftermarket always influenced the Tech Dept?

amxron 12-23-2017 10:19 PM
Re: End of year HP
 
Wonder if I could get Mummert heads approved for my 57 Ford 312, oops Fords
don't exist before 1960 per NHRA.

Ron.

Mike Jones 12-23-2017 11:05 PM
Re: End of year HP
 
Quote:
Originally Posted by HR9121 (Post 552016)
I read it and it was good lol. I'll just keep it to myself since Allen decided to take it down.
Jim your PM inbox is full and can`t receive new PM`s
Mike A114

Ed Wright 12-24-2017 01:11 PM
Re: End of year HP
 
........

B Aceves 12-27-2017 02:14 PM
Re: End of year HP
 
Quote:
Originally Posted by M Brand 505B (Post 552234)
Keep in mind these heads still have to CC and have the same valve size as the head you're replacing.
How will they ever know !
No tech
No tear down.
= what a can of worms and bs someone has opened.

X-TECH MAN 12-27-2017 02:23 PM
Re: End of year HP
 
Quote:
Originally Posted by b aceves (Post 552516)
how will they ever know !
No tech
no tear down.
= what a can of worms and bs someone has opened.
lol.....................................

Alan Roehrich 12-27-2017 03:10 PM
Re: End of year HP
 
Quote:
Originally Posted by M Brand 505B (Post 552234)
Keep in mind these heads still have to CC and have the same valve size as the head you're replacing.

Are you really sure about that?

The GMPP 401 head is actually an Edelbrock head (and in fact, the Edelbrock head itself is now approved), I'd strongly suggest that you look at the difference in specs for it and the rectangle port closed chamber heads it replaces. It (the replacement head) has its own chamber cc, port cc, and exhaust valve size.

goinbroke2 12-29-2017 01:01 AM
Re: End of year HP
 
The way I read it is, if I run stock heads my hp is “X”. If I run aftermarket head pn1234 than my hp is “X” + 5. The reason I am adding 5(or however much) hp is because that is what these heads are deemed to be worth with their ports/valves/chambers/etc.

I think the difference from stock is acknowledged in the increase of hp.
What sbf has been approved for stock? Gt40p heads at +5hp? I’ll go for that thank you very much! Lol.

Frank B. 12-29-2017 02:40 AM
Re: End of year HP
 
New weight on 2015 camaro. Now natural C car.


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