Could it be out of a police car? Yes. Is is anything different in it from a standard passenger car engine? No.It could be a police motor. They had thick balancers and log manifolds. They didnt use headers or special manifolds or steel cranks in because it was a cop car
It’s not a police pursuit motor. The thick balancer and log type exhaust manifolds give it away.
Where did the extra 65hp come from? Certainty not just from a passenger side manifold. Serious question.Latter model police pursuit 440 HP engines have that passenger side manifold. I have two of them 77 & 78 440HP. The stamp pad on top of the engine could confirm. They're still not super exciting engines at around 255hp but better than the 190hp civilian 440s of the same era.
Where did the extra 65hp come from? Certainty not just from a passenger side manifold. Serious question.
Net rating is how it's fully installed and tuned in the car, shouldn't be hard to free up 65 hp out of a big block, bet both of those engines in dyno trim are probably pretty similar and above 300 hp.Where did the extra 65hp come from? Certainty not just from a passenger side manifold. Serious question.
Gross factory power numbers are pretty useless. Net at least has a standard behind it and even those can be manipulated to some degree.Unless Chrysler was playing games with the numbers back in the late ‘60’s early ‘70’s the low performance 383 made 330hp and the high performance 383 made 335 which amounted to 5 extra horsepower. The low performance 440 made 350hp and the high performance 440 made 375 which amounted to 25 extra horsepower. So where did Chrysler come up with an extra 65 horsepower in 78?
Manufacturers have never used wheel horsepower for ratings. They use gross or net. The difference being how many accessories are attached to the engine during testing.You need to be careful on which years you are talking about because at that time they were changing between crankshaft vs wheel hp to deal with insurance issues.
Yea but they didn’t. That’s the point of the question. The “high horsepower” 440 was still an 8:1 comp engine (likely closer to 7-1/2:1 with pistons .150 down) with all of the same hard parts as the “low horsepower” model. They definitely didn’t “tune” 65 horsepower in to it. From the article posted above;They started detuning and lowering compression in 72, all they had to do is reverse some of the changes to get HP back.
440 never came with a 2 barrel.is it possible that it was 4bbl intake and carb, where the 190 number came from a 2bbl motor?
by happen stance i have a 77 HP2 440 intake and TQ so that just sparked my thought process.
BS It couda had 3 of them.440 never came with a 2 barrel.
Aight dammit. LOLBS It couda had 3 of them.
I see what appears to be a Holley 3310. No 440 ever came with a single 2 barrel.Post 44 sure looks like a 2 bbl. You thinkin not factory or is the police version different than production?