Here is a break down of the 1978 & 1979 360ci engines
1978 (E57) 360 cid V-8 2bbl (K code)
compression ratio 8.4:1
horsepower 155 @ 3,600
torque 270 @ 2,400
1978 (E56) 360 cid V-8 4bbl Calif. (J code)
compression ratio 8.4:1
horsepower 170 @ 4,000
torque 270 @ 1,600
-----------------------------------
☆ 1978 (E58) 360 cid V-8 4bbl Heavy Duty (Police)(L code)
compression ratio 8.4:1
horsepower 175 @ 4,000
torque 260 @ 2,400
☆ 1978 (E58) 360 cid V-8 4bbl Heavy Duty Calif. w/Smog Pump (Police)(L code)
compression ratio 8.4:1
horsepower 160 @ 3,600
torque 265 @ 1,600
___________________
1979 (E57) 360 cid V-8 2bbl (K code) [360P code on engine block, P=Premium gas]
compression ratio 8.4:1
horsepower 150 @ 3,600
torque 265 @ 2,400
1979 (E55) 360 cid V-8 2bbl Heavy Duty (? code)
compression ratio 8.4:1
horsepower 155 @ 3,600
torque 270 @ 2,400
1979 (E56) 360 cid V-8 4bbl Calif. (J code) [360H code on engine block, H=4bbl 360]
compression ratio 8.4:1
horsepower 170 @ 4,000
torque 270 @ 1,600
-----------------------------------
☆ 1979 (E58) 360 cid V-8 4bbl Heavy Duty (Police)(L code) [360HP code on engine block, HP=High Performance]
compression ratio 8.0:1
horsepower 195 @ 4,000 < 265hp NHRA Rated-Gross Horse Power
torque 280 @ 2,400
☆ 1979 (E58) 360 cid V-8 4bbl Heavy Duty Calif. w/Smog Pump (Police)(L code) [360HP code on engine block, HP=High Performance]
compression ratio 8.0:1
horsepower 190 @ 4,000
torque 275 @ 2,000
Special order: In some State Police cars as in Magnums, StRegis, and in Little Red Express trucks. With Dual Snorkel Air Cleaners(Special Chrome in Express trucks)!
☆ 1979 (E58) 360 cid V-8 4bbl Extra Duty (Police)(L code) [360_3 code on engine block, The 3 stands for SHP= Special High Performance
due to there only being two slots for letters, so they used the number three to indicate SHP over the more standard HP engines!]
compression ratio 8.0:1
horsepower 225 @ 4,000
torque 300 @ 2,400