4 Speed for 56 Y-Block

4 Speed for 56 Y-Block

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http://forums.y-blocksforever.com/Topic7269.aspx

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By Fifty6Vicky - 17 Years Ago

My retro-cruiser (56 Customline Vicky) needs some oomph! I want to swap out the original 3 spd -no o/d for a good 4 spd with minimal hassle. What should I look for in the 'yards' that will bolt on if possible. I have a 57 9inch (3.10) already in but just for the street, would prefer a good 4 spd. for cruizin'.

By pcmenten - 17 Years Ago

Is that a Rochester in between the Holley 94's?

I'd suggest the top-loader. I have a RUG O/D that might end up going into a 54 F100.

By Fifty6Vicky - 17 Years Ago

You've got a sharp eye for carbs. It works well though.

By paul2748 - 17 Years Ago

I have a top loader in my 54 (312). I like it. Minimal trouble to put it in. See some of my prior posts on mods required.

By rexbd - 17 Years Ago

Go with a top loader, very sturdy and easy to rebuild not to expensive to buy. Number of good websites to look up information on gear ratios rebuild kits etc. David Kee is a good source as is Toploader Heaven. There are two basic kinds with the difference being the size and number of splines on input shaft.

By morgus - 16 Years Ago

NICE COMBO- BUT IF YOUR 4 SPEED DOESN'T HAVE A STEEP FIRST GEAR, I DON'T THINK YOU ARE GOING TO LIKE THE SLOW GETAWAY FROM REST. YOU MAY WANT TO ADD MORE GEAR TO YOUR REAR END-SOMETHING LIKE A 3:50 OR 3:73, EVEN 3:90. AUTOMATICS GET AWAY WITH THIS BY HAVING A BUNCH OF GEAR IN THE TORQUE CONVERTER. HAVE FUN. BYE.-

By pegleg - 16 Years Ago

I'd recomend a small block-wide ratio 4 speed, the one with the 2.78 low gear.

Mummert makes an adapter to utilize a t-5 from a 5.0 Mustang, that would give you a healthy low gear, in the 3.0 range and the 70% overdrive. Use that and a 3.50 or 3.70 rear gear and you'll have the best of both worlds. Wink

By Ol Ford Guy - 16 Years Ago

Frank,

Can you tell externally which gear set is in a T-10, assuming it hasn't been changed?

By pegleg - 16 Years Ago

Paul,

Easiest way I know is to put in low, rotate the input shaft and count (the output will rotate once for every 2.2 or 2.54 times you turn the input). You'll know what it's actually got this way. I usually mark the shafts with a marking pen and do it a couple of times to be sure I got it right. Not that I ever screw up but........ w00t