help me figure out this engine code please

[SS Shaun]

can someone help me figure out the code on my motor for me i am reading a link on it but i am not sure if its correct. here is what is stamped on my motor
C6b173362
so if i am reading this right it right the C=March the 6- the 6th day but what is the B? so if this is correct the ref is correct the motor was built in 71
so i have March 6 1971?
but the stamping on the back of the motor reads
361959

and then the heads are
336781

can someone help me figure out what these are. and are they any good?c

[carpoor]

That casting # block corresponds to 1973-85. The 781 & 049 casting heads are what many people like to use.

As for any good, what are your intentions?

[shadowgray396]

Chevrolet produced casting number 361959 from 1973 to 1990, making it one of the most common of all 454-block engines. This engine was an option on 1973 to 1975 Chevelles, and was used in a number of other full-sized Chevrolet passenger cars through 1976. Although 1976 was the last year the 454 ever saw passenger car duty, this big block engine came in a number of GM trucks all the way up through 1990.

Horsepower
From 1973 to 1976, the 361959-block engine produced between 270 and 275 horsepower and 390 pound-feet of torque. The power dropped precipitously during the 1970s and early 1980s, from 240, to 210, 200 and finally to 190 horsepower by 1982. The old big block received electronic fuel injection in 1990, boosting its power output to between 230 horsepower and 385 foot-pounds of torque, to 255 horsepower and 405 foot-pounds of torque.

The 781 heads are some of the best open chamber BBC heads out there.

[SS Shaun]

That casting # block corresponds to 1973-85. The 781 & 049 casting heads are what many people like to use.

As for any good, what are your intentions?

my intentions is jut to drive it to shows and use it on the weekends :) but i would like to have enough power to step on it and feel something :)

[carpoor]

If you use those heads, you'll need to swap pistons to get any compression out of it.