Another 273 question

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So this just happened. I went to a concert Saturday, over an hour drive in hot humid New England weather. Also had to pick up a small apartment stove on the way. No issues at all. Arrive back home with my buddy no problem. Next morning there's tranny fluid everywhere. Jack it up and it's coming out of the converter plate. Tranny has to come out now.

Since I now have to deal with engine and tranny I might as well upgrade to a new 318/360 and A727. I know some modifications are needed but once in the parts are easier to come by and I'll have more power.

The universe has ways of telling you things I guess.
 
I really do appreciate all the input. You guys are great.

Now I can put in an aftermarket floor shifter for more classic attitude.
 
Seems years ago we had a member that went by “The Rev”. Ran a wagon in stock eliminator with the 273. Held several class records. Seems he was consistent in the mid 13s. Another is Paul Wong, runs in Division 7. Runs 273s in a 65 Valient and a Belvedere.

you can actually make a 273 work. It’s a matter of blending all the right parts and modifying the heads to increase both flow and velocity. Remember, the stock 273 2 barrels ran from the factory a CR OF 8.8 to 1. Wouldn’t take much to get the motor to around a 9.5 to 1 with crunching some numbers and applying a little machine work.

As far as heads try and find some 920s. My experience the 920s have the best flow characteristics stock. A little bowl blending, add some stainless valves (1.88 cut down to 1.82 to avoid shrouding) will add both flow and port velocity appropriate for that small motor. I agree on the E4 grind. Oregon Cam has experience with the 273.

I should note that another info source would be Matt Steen. Runs a 273 in Super Stock. He owns Victory Engines. Not sure if he’s still a member here.
 
Dartvader,
Remember that the secondaries in a 500 cfm 4 barrel won't open except at high rpm, on a 273. There just isn't enough air flow.
 
I'm going to look at a 360 this weekend. I'm just going to upgrade with more modern engine/trans. Easier to get parts plus more durable and more torque.
 
Dartvader440gt said:
I'm going to look at a 360 this weekend. I'm just going to upgrade with more modern engine/trans. Easier to get parts plus more durable and more torque.
Click to expand...
Na! Why stop there. A 440 based 541 stroker will fit in there. :poke::lol:
 
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