Ol' Fart's Firebird Fantasy

[Adam Strang]

Stall???? He don`t know me very well,do he!

[oldskool]

Originally Posted by Adam Strang

Stall???? He don`t know me very well,do he!

No, actually, I don't know anybody on here at all. So by what you said, I assume that you are a die hard stick guy ?

Do you (or any of the stick guys) still win a lot of rounds, even with the bracket racing nature of today's Stocker racing ?

You said you got a CP piston approved for the 350HO. How long ago was that ? What is the CP part number ? It's not listed on this site yet. They still have only the TRW. Would you please post some pics of these CP pistons ? Do they have floating pins with spiral locks or ?

http://www.classracerinfo.com/Engine...px?ENGINE=2008

[Adam Strang]

Go to the NHRA site and look under approved products.The number is P5-CP.Got them approved a year and half ago.

[oldskool]

Originally Posted by Adam Strang

Go to the NHRA site and look under approved products.The number is P5-CP.Got them approved a year and half ago.

OK, got it--page 60. What did you have to do to get CP to make this piston ?

http://www.nhra.com/userfiles/file/N...edProducts.pdf

[oldskool]

Subject: Stocker cams

Question: I think I have ask this on the site before, but do not remember getting an answer. So, what brand of cam do most of the top Stockers use ?

Bullet is the brand I see mentioned most. They have quite a few lobes listed, and can do custom grinds also.

http://www.bulletcams.com/Masters/Hlobes.htm

I assume that most cam grinders don't fool with Stocker stuff because there are so few Stockers around.

[HandOverFist]

Comp Cams will grind whatever you want.

[Dave Ribeiro]

oldskool,

I have used CC in both my 350 & 400 ci 77-Pontiac firebird ..They have a wide selection of grinds to choose from & very good service...I use Crower dual- valve springs & CC hyd lifters , also use Rhoads lifters at times ... Yes, I run 160 # plus spring pressure & CC mag. pushrods, in a 3850 # bird.You don't need all the good stuff to run 2-3 under the index , you will need a good trans & Convertor , plenty of TNT... A good sealing short-block ,heads & a good Q-jet ? Good Luck, $$$$ - jump in the waters is " Fine "...

[oldskool]

Originally Posted by Dave Ribeiro

oldskool,

I have used CC in both my 350 & 400 ci 77-Pontiac firebird ..They have a wide selection of grinds to choose from & very good service...I use Crower dual- valve springs & CC hyd lifters , also use Rhoads lifters at times ... Yes, I run 160 # plus spring pressure & CC mag. pushrods, in a 3850 # bird.You don't need all the good stuff to run 2-3 under the index , you will need a good trans & Convertor , plenty of TNT... A good sealing short-block ,heads & a good Q-jet ? Good Luck, $$$$ - jump in the waters is " Fine "...

Now that's what I wanted to hear ! Reasonable spring pressure, and Rhoads lifters. That means I can run a reasonable cam with Rhoads lifters, in my 455, and get by with a little less spring pressure than you need with your 350 & 400, because I'll be turning less rpm with the long stroke motor--6000 rpm or maybe even a bit lower. Does this sound reasonable ?

Also, with the 455 and Rhoads lifters, I can get by with less stall, and use the 500 + ft lbs of low end torque. Correct ?

[oldskool]

As I mentioned at the beginning of this thread, it's main purpose is to gather good Stocker info, not only for myself, but also to help others like me, who have less experience with Stocker stuff.

The only way I know to get this info is to ask those who have Stocker experience, and to find good online info. So I'll just keep firing the questions as I think of 'em.

Subject: Pistons

Question: (1) I see that for some engines there are several NHRA approved forged pistons. So, even if the stock pistons had press pins, are these approved pistons allowed to have floating pins ?

(2) Are all these pistons required to have the same number, size and depth valve reliefs ?

(3) I see that NHRA sets the min weight for the piston. But the min weight for most Pontiac pins is listed as 90 g. That seems like an awfully light pin, doesn't it ?

(4) Also, several of the rods approved for Pontiacs have .990 BBC pin holes. So does that mean that you can order these approved pistons with either size pins ?

http://www.classracerinfo.com/Engine...px?ENGINE=2048

[Mark Yacavone]

Originally Posted by oldskool

As I mentioned at the beginning of this thread, it's main purpose is to gather good Stocker info, not only for myself, but also to help others like me, who have less experience with Stocker stuff.

The only way I know to get this info is to ask those who have Stocker experience, and to find good online info. So I'll just keep firing the questions as I think of 'em.

Subject: Pistons

Question: (1) I see that for some engines there are several NHRA approved forged pistons. So, even if the stock pistons had press pins, are these approved pistons allowed to have floating pins ?

(2) Are all these pistons required to have the same number, size and depth valve reliefs ?

(3) I see that NHRA sets the min weight for the piston. But the min weight for most Pontiac pins is listed as 90 g. That seems like an awfully light pin, doesn't it ?

(4) Also, several of the rods approved for Pontiacs have .990 BBC pin holes. So does that mean that you can order these approved pistons with either size pins ?

http://www.classracerinfo.com/Engine...px?ENGINE=2048

1 Yes, you can float the pins

2 Yes NHRA approved number

3 Don't argue about it, and don't use a lighter pin than you have to.

4. You can use a .980 pin or LARGER if rod is approved.