Horsepower for 69Z 302 w/#140 cam

[miket1]

I have a set of 4;10 & 4;56 gears on the shelf I may try a 4;10 first

[Plowman]

Try the gears you have on the shelf but Richmond make's New 4.33 gears also.

[67 Nova Boy]

4:56...the 4:10 are not enough!

Dave
67 Nova Boy

[John Brown]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 67 Nova Boy</div><div class="ubbcode-body">4:56...the 4:10 are not enough!</div></div>

The 68 Z I used to drive had 5.38's. Running kick down on the street at any speed up to 100 was just plain easy.

[Plowman]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 67 Nova Boy</div><div class="ubbcode-body">4:56...the 4:10 are not enough!

Dave
67 Nova Boy </div></div>*** Some people have 3.73 gears in a 302 cu.in.

[COPO]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Plowman [/quote</div><div class="ubbcode-body">*** Some people have 3.73 gears in a 302 cu.in.</div></div>

With an M-20 trans the 3.73's would not be bad off the line, but with M-22 or 21, agree would be a sluggish combo.

[ZAPPER68]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: COPO</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Plowman </div></div>*** Some people have 3.73 gears in a 302 cu.in.[/quote</div><div class="ubbcode-body">

With an M-20 trans the 3.73's would not be bad off the line, but with M-22 or 21, agree would be a sluggish combo. </div></div>

I agree... my 68Z has 3.73's and with the M21 it's not the ideal combination off the line. However, after refreshing the original engine I installed a nasty SBC from American Speed and a Tremec TKO. Problem solved.

The 302/M21 are safe and sound in my garage.... &amp; I drive the hell out of the car now without worrying about the original drive train.