273 HP what are the specs??

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just a quick question on the old 273 HP or is it called comando?

what are the spec, like real CR not est CR

real crank HP

carb

exh

cam specs

heads

pistons

crank

rods same as 318 for that yr? or not.

anything else.

oh and where can i get a set of those valve covers..
thanks

Don

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kool ty, good info but not much on engine specs

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just a quick question on the old 273 HP or is it called comando?

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You're welcome.

This is a bit off topic, but I was trying to remember where I had read that 318 poly 4-barrels had 248 duration cams in 1959, and I found the info in a Chrysler Corp Service Reference Book (one of those small, paperback booklets issued for many years with the little round-headed, square-bodied cartoon tech on the covers) describing the "1959 MODEL FEATURES." About the 318 4-barrel that year, the book said:

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Fury V-800 With Super Pack. This is a 318-cubic-inch engine available for the Sport Fury 2-door Hardtop and the Convertible. It uses a four-barrel carburetor and dual exhaust . . . . A new camshaft increases valve opening from 244 degrees to 248 degrees, providing better breathing.

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just a quick question on the old 273 HP or is it called comando?

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Plymouth's version was the "Commando 273," Dodge version was "Charger 273." Both had chrome air cleaner tops with a decal that said one or the other, depending on whether Plymouth or Dodge vehicle.

The rods, forged crank, oil pan, timing cover, timing tab, harmonic balancer, alternator bracket and pulleys of the first 273's were pretty much lifted straight from a poly 318. That's why an early 273 alternator bracket has two sets of holes (one for the 273 and one for the poly 318), and why the early 273 timing covers have an extra, unused mounting hole on the drivers side.

The 4-barrel 273's used a 248 duration solid lifter cam. Interestingly, so did the 4-barrel versions of 318 polys in at least 1959-60 (not sure about other years). I'm not sure about the lift on the 318 poly 4-barrel cams, but the fact that they have the same duration as the Commando 273's makes me suspect the cam grinds are the same (not saying that the cams themselves are interchangeable, as the poly lobes are not oriented the same as wedge lobes). Haven't been able to confirm that, though.

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