How much power is this engine making in my fathers 1973 mach1?
#1
How much power is this engine making in my fathers 1973 mach1?
specs: '69 351w block stock bottom end besides the JE flat top pistons, 1971 351c h.o 4v closed chamber ported heads with crane cams valve springs, split keepers, and steel spring retainers, Manley race stainless 2.19 intake 1.71 exhaust valves, compression around 11:1 or more, 1969 351w 8.152" pushrods, 1.6 comp magnum roller rockers, hydraulic flat tappet and lifter kit H-288-2 crane cam Duration 288/292 Lift .528/.536 powerband: 2,500-5,500rpm, 1 5/8'' 3'' col. hooker headers, B&A ford street boss 351w manifold to fit the cleveland heads, mallory unilite and at last a 750cfm Holley double pumper carb. Car is currently running off of straight pipes with no crossover pipe, has a c6 tranny with 10'' B&M 2500 stall, 9'' detroit locker with 3.25 gears.
Does anybody have opinions on how much this street beast is putting out
I am saying around 400+hp leave comments thank you!
Does anybody have opinions on how much this street beast is putting out
I am saying around 400+hp leave comments thank you!
#3
V8 351 ci Q code (Cobra Jet) 266 hp
V8 351 h code 144 hp
V8 302 f code 171 hp
V6 250 ci code? 89 hp
Believe all are hp at fly wheel
Check VIN# for engine code
These ar hp ratings appear in several '73 Mach 1 specs
Like it was pointed out above, a dyno will show the true hp
V8 351 h code 144 hp
V8 302 f code 171 hp
V6 250 ci code? 89 hp
Believe all are hp at fly wheel
Check VIN# for engine code
These ar hp ratings appear in several '73 Mach 1 specs
Like it was pointed out above, a dyno will show the true hp
#5
V8 351 ci Q code (Cobra Jet) 266 hp
V8 351 h code 144 hp
V8 302 f code 171 hp
V6 250 ci code? 89 hp
Believe all are hp at fly wheel
Check VIN# for engine code
These ar hp ratings appear in several '73 Mach 1 specs
Like it was pointed out above, a dyno will show the true hp
V8 351 h code 144 hp
V8 302 f code 171 hp
V6 250 ci code? 89 hp
Believe all are hp at fly wheel
Check VIN# for engine code
These ar hp ratings appear in several '73 Mach 1 specs
Like it was pointed out above, a dyno will show the true hp
Lynn
#6
#9
I'm very familiar with the head design was just curious why you went with the 4v heads which generally don't make good power/torque unless at high rpm without ALOT of work going into them. Was just wondering why you didn't go with aftermarket windsor aluminum heads but hey as long as your happy that's all that matters. Now, lets see a pic of the car.
#10
specs: '69 351w block stock bottom end besides the JE flat top pistons, 1971 351c h.o 4v closed chamber ported heads with crane cams valve springs, split keepers, and steel spring retainers, Manley race stainless 2.19 intake 1.71 exhaust valves, compression around 11:1 or more, 1969 351w 8.152" pushrods, 1.6 comp magnum roller rockers, hydraulic flat tappet and lifter kit H-288-2 crane cam Duration 288/292 Lift .528/.536 powerband: 2,500-5,500rpm, 1 5/8'' 3'' col. hooker headers, B&A ford street boss 351w manifold to fit the cleveland heads, mallory unilite and at last a 750cfm Holley double pumper carb. Car is currently running off of straight pipes with no crossover pipe, has a c6 tranny with 10'' B&M 2500 stall, 9'' detroit locker with 3.25 gears.
Does anybody have opinions on how much this street beast is putting out
I am saying around 400+hp leave comments thank you!
Does anybody have opinions on how much this street beast is putting out
I am saying around 400+hp leave comments thank you!
Mine is a 377 with port/polish 2V open chamber heads, 2.08/1.71 valves, CR=10:1 with dish pistons, 1.7 roller rockers, comp cam w/.510/.550 lift, rhoads lifters, 1-5/8" 3" col. hedman headers, street boss 351 manifold, MSD ignition, holley 750 vac sec carb.
I went 2V since I live at 5000 feet and could use more velocity than 4V heads. I've heard of using port plates to increase low end torque on the 4Vs.