>All 67 up A904s fit all 67 up LA-convertors, and have the larger TC pilot
>66 and down A904's, have the smaller stuff, and require the matching crank, or conversion.
> For a streeter, the 273 A904 will be just fine behind an HO318. In my youth, I put one behind a 340 2bbl, and ran thechit out of it for some two years before it broke.
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>To get to 400hpNA, with a true 318, is gonna take a lotta effort and, on the street, can hardly hurt a fresh A904 cuz you will rarely get the rpm up, to where the power is, unless you have race-gears in the back. And with a low to modest stall, the much smaller torque numbers make much smaller horsepower.
For instance;
300 @2500 is 143hp, the torque is now building,
315 @3500 is 210hp, the torque soon peaking
330 @4500 is 283hp, at the peak
325 @5500 is 340hp, the torque now declining.
320 @6500 is 396hp
>The biggest tires that you can install INTO the rear tubs of a 67 is either a 275/60-15, or a 295/50-15, and they only come, in one kind of street rubber, namely slippery as heck, so, unless you modify your rear suspension for better traction, they just spin with even a modest power application.
Because of these points listed, I would use that freshened trans of yours in a heartbeat.
However, I would have normal-use replacement parts in stock. Cuz you never know the weak points on the first install....... lol.
But honestly;
With a 400hp 318, that combo is gonna want steep rear gears and/or a higher stall, both of which, in Australia, sorta point to an A500.... in the longrun.