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-   -   1969 396, 325 or 350 hp version??? (https://classracer.com/classforum/showthread.php?t=64136)

Chipper Chapman 10-24-2016 05:32 PM
1969 396, 325 or 350 hp version???
 
Is there any benefit to one or the other? Is the 350hp cam worth the 20HP hit?

stocker396 10-24-2016 07:00 PM
Re: 1969 396, 325 or 350 hp version???
 
Not sure... BUT we are gonna find out in Belle Rose at the open. According to the math-No. But gonna try any way.
;)

Terry Cain 10-25-2016 06:32 AM
Re: 1969 396, 325 or 350 hp version???
 
Go ya one better. Is the cubic inches of 31 with a POS intake manifold worth 31 hp? 427/390 hp rated at 371.

Bobby Lundholm 10-25-2016 09:13 AM
Re: 1969 396, 325 or 350 hp version???
 
I have the 396/350 and it shows a lot of promise but I've been fighting electrical/fuel problems so I haven't made a good run this year.

Bobby Lundholm 10-25-2016 09:17 AM
Re: 1969 396, 325 or 350 hp version???
 
Quote:
Originally Posted by Chipper Chapman (Post 518319)
Is there any benefit to one or the other? Is the 350hp cam worth the 20HP hit?

It's only a 15 hp hit from the 325 to the 350. The 350 is rated at 340 per NHRA.

Dan Fahey 10-25-2016 11:05 AM
Re: 1969 396, 325 or 350 hp version???
 
Quote:
Originally Posted by Terry Cain (Post 518336)
Go ya one better. Is the cubic inches of 31 with a POS intake manifold worth 31 hp? 427/390 hp rated at 371.
Relax!
If it was a great Manifold you would be rated at 390hp or more!

Dan

Chipper Chapman 10-25-2016 05:49 PM
Re: 1969 396, 325 or 350 hp version???
 
Quote:
Originally Posted by Bobby Lundholm (Post 518342)
It's only a 15 hp hit from the 325 to the 350. The 350 is rated at 340 per NHRA.
325 HP is factored at 320, 350 Hp is factored at 340. That's 20.

Bobby Lundholm 10-26-2016 09:14 AM
Re: 1969 396, 325 or 350 hp version???
 
Quote:
Originally Posted by Chipper Chapman (Post 518379)
325 HP is factored at 320, 350 Hp is factored at 340. That's 20.
Stock is still 325 in the Camaro. Only the Chevelle is rated at 320.

396
*
Auto
325

10.16
10.34
10.92
11.11

325
7.15.15

Chipper Chapman 10-27-2016 05:36 PM
Re: 1969 396, 325 or 350 hp version???
 
I'm looking at the chevelle combo to be more specific.

Dwight Southerland 10-27-2016 07:10 PM
Re: 1969 396, 325 or 350 hp version???
 
Here is a way to think about it.

325 hp - G/SA 3690 lbs 12.00 index
350 hp - F/SA 3740 lbs 11.85 index

So the camshaft would have to be worth about .2 , In a car that heavy, that would mean at least 30 hp net through the curve.


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