67 Firebird 400 4 SPEEDcombo questions???

Kegracing · 06-13-2013, 02:29 PM

OK, this is a long term project maybe... I have a 67 Firebird Convt. stocker, with IHRA crate motor in it now. Car was factory stick car, but th350 in it now. Car is built ok, and runs fair with a cheap zz4 motor. BUT... I want to build a Pontiac 400 - 4 speed combo. I have a set of 670 heads and intake, but motor is a whole different topic for now.

Reason for this post is to get some 4 SPEED AND CLUTCH education and ideas. I know there are some really good stick shift racers on here. I will ask the moderators to please let them be open, as I know there have been some problems with people pushing one type or the other of parts in the past... I am just looking for ideas and facts. Design differences, what different people are running and why.

Also, Pontiac is not high reving, even in stocker trim. Probablly 4.30 rear gears with 9x30 slick? but what trans ratios? Guessing different from the high winding small blocks...

Thanks in advance, and feel free to IM or email me if you would prefer.

Ken

06-13-2013, 02:29 PM	#1
Kegracing Member Join Date: Jun 2002 Location: Red Oak, TX Posts: 441 Likes: 0 Liked 0 Times in 0 Posts	67 Firebird 400 4 SPEEDcombo questions??? OK, this is a long term project maybe... I have a 67 Firebird Convt. stocker, with IHRA crate motor in it now. Car was factory stick car, but th350 in it now. Car is built ok, and runs fair with a cheap zz4 motor. BUT... I want to build a Pontiac 400 - 4 speed combo. I have a set of 670 heads and intake, but motor is a whole different topic for now. Reason for this post is to get some 4 SPEED AND CLUTCH education and ideas. I know there are some really good stick shift racers on here. I will ask the moderators to please let them be open, as I know there have been some problems with people pushing one type or the other of parts in the past... I am just looking for ideas and facts. Design differences, what different people are running and why. Also, Pontiac is not high reving, even in stocker trim. Probablly 4.30 rear gears with 9x30 slick? but what trans ratios? Guessing different from the high winding small blocks... Thanks in advance, and feel free to IM or email me if you would prefer. Ken