I am rebuilding a 5.0, from an 84 block, with a 4 barrel, last year they made it. Anyways, the cylinder heads have casting numbers D80L, and i am just wondering if anyone has flow numbers and chamber numbers on it?
all i know for shure is that the d8 in the part number is 1978 that when they started using that head and the 85s were also carberated at least in first 1/2 the year, and your heads are similar to the e7 heads on my 94 but i dont got the flow #s for them
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94 gt aode baumannator,pi stallion 3000 stall,transgo,mega bite jrs,3.90 gears,31 spine moser axles,comp exteme,1.7 roller rockers,190 pump,mac cold air,ford 1 5/8 unequals, off road h,flowmaster 2 chamber with stainless tails,msd box,PIH(a9p computer ajustable fan controler),q1a k-member,kenny brown frame ties,driveshaft loop,air pump eliminator kit,bbk 70mm tb,pro-m bullit meter,24#injecters,ported heads&intake,and all the little bolt ons.
The '82 was a two barrel. The '83, '84, and '85 were four barrels, with the
TBI available in '84 and '85. Everything after was EFI.
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1992 Deep Emerald Green Mustang GT Hatch, 5 speed, 2.73s, Mac fenderwell cold air intake, '93 Cobra MAF, Mac 70mm throttle body & spacer, Explorer intakes, Mac unequal headers & offroad pipe, Magnaflow catback, Walbro 110lph fuel pump, Jet adjustable FPR, MSD Blaster coil, Accel 8mm wires, FRPP aluminum quadrant, UPR firewall adjuster, stock cable, Granatelli upper control arms.
Waiting to go on: Granatelli lower control arms, and GT40 Iron heads!
I dont believe that casting will flow like the E7's. I remember reading somehting once where they said that ford put the 'truck' heads on in 87. They were the E7's. I could be wrong. These heads were installed on 302 and 351's so they had to flow better.
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13.4@106mph (on old 302, no ET's on stroker yet)
'94 GT 347 Stroker, TFS stage 2 cam (.542 lift), AFR 185 heads, Edelbrock Performer RPM intake, 30 lb injectors, 77mm Pro-M, Fox Accufab 75mm Throttle Body, 255lph fuel pump, Mac fox style Long Tube headers, Tremec TKO, aluminum driveshaft, 3.73 gears , Flowmaster 2 chamber, chrome Cobra R 17x9's, Steeda radiator, Eibach Sportline springs, Tweecer RT
D = 1970's
8 = Year within Decade
O = Product Line ; Fairlane 1962-68; Torino 1969-76; LTD II 1977-79; LN7 1982-83
L = Source of Part ; Ford Parts and Service Division; Industrial Engine Operations
SO I highly doubt these heads flow nearly as well as E7's
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13.4@106mph (on old 302, no ET's on stroker yet)
'94 GT 347 Stroker, TFS stage 2 cam (.542 lift), AFR 185 heads, Edelbrock Performer RPM intake, 30 lb injectors, 77mm Pro-M, Fox Accufab 75mm Throttle Body, 255lph fuel pump, Mac fox style Long Tube headers, Tremec TKO, aluminum driveshaft, 3.73 gears , Flowmaster 2 chamber, chrome Cobra R 17x9's, Steeda radiator, Eibach Sportline springs, Tweecer RT
ok thanks guys, and i'll say it again, 2bbl in 85, along with TBI. Those are the only 2 engines offered in 85, guaranteed. And 82 the 4 bbl was a mex engine.
xjncoguyx, I don't know where you're getting your information about what type of induction was available in 5.0L Mustangs and Capris, but you're incorrect. And you were corrected once already by meangreen92.
well you're also incorrect about the CFI, mustangs came TBI in the early stages. I don't know where you're getting you're info from but in 85 the mustang did not have a 4 bbl carburetor. Only 83 and 84. All others were 2bbl.
my first car was an 85 mustang with a stock motorcraft 4bbl carb! BELIEVE ME, i rebuilt that carb...
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91 notch, 11.5:1 331, victor jr. heads, victor efi manifold, trick flow stage 3 cam. 401 RWHP through AOD hitting the stock rev limiter at 6200. (not including an extra 200hp motivation from a nitrous works system):-D
well you're also incorrect about the CFI, mustangs came TBI in the early stages. I don't know where you're getting you're info from but in 85 the mustang did not have a 4 bbl carburetor. Only 83 and 84. All others were 2bbl.
CFI = Central Fuel Injection, a FORD term
MPFI = Multi-Port Fuel Injection, a GM term
SEFI = Sequential Electronic Fuel Injection, a FORD term
TBI = Throttle Body Injection, a GM term
TPI = Tuned-Port Injection, a GM term
Available in 3-door hatchback only, the GT featured the first true "HO" 302 as standard equipment. The major upgrades and design changes which distinguished the new 157 horsepower HO 5.0L engine from its 302 predecessor, and provided 17 additional horsepower were a 2V Motorcraft carb (369 CFM) fed by a dual snorkel, high lid air cleaner, an aluminum intake manifold, a 2V marine cam with a double row roller timing chain, larger and deeper nylon valve stem oil seals and 8.4:1 CR sandcast pistons.
Of course, the big news for 83 was more horsepower - due primarily to the addition of a healthy Holley 4180C four-barrel carb. With the Holley 600 cfm four-barrel, dual snorkel 460 air cleaner, enlarged exhaust passages, an aluminum intake and a less restrictive single-exhaust system (Y pipe w/ inline catalyst), the 302 snorted out 18 more horses and five more foot pounds of torque than the 82 GTs 2 barrel 302.
The 5.0L 84 Mustang GT was carried over from 83 without significant change. The 4V 600 CFM carb, dual snorkel 460 air cleaner, 2V marine cammed 302 motor reappeared in 1984 with only a revised choke design (eliminating the use of exhaust manifold heat tubes) to set it apart from the prior years HO.
Other big news in 1984 was the introdution of an AOD / CFI equipped GT. In mid-year, an optional 165 horsepower 5.0L engine with central fuel injection and a 4-speed automatic overdrive transmission was offered with a 3.27:1 axle ratio. The 175 HP 4V version carried over from 1983 was available only with the T-5 equipped transmission. The 4V 5-speed was available with a 3.08:1 axle ratio.
While the Turbo GT was discontinued in 1985, the four-barrel 5.0L V-8 was upgraded once again. After Ford had promised, but not delivered, more horsepower for the 1984 GT, they finally came through by harnessing 35 additional horses for the 1985 GT 5.0L - pushing it up to 210 horsepower. 1985 GT engine The GT had finally topped the golden 200 horsepower mark! To accomplish this feat, a number of enhancements were made to the 302 HO (still topped by the 600 cfm Holley 4V with dual snorkel 460 air cleaner) including the addition of a racing-style roller lifter camshaft, stainless steel tubular exhaust manifolds and forged 8.4:1 pistons (replacing sandcast pistons) with thinner, lightweight rings to further reduce friction. Of course, these changes necessitated a revised block and heads to accept the taller roller lifters. Exhaust restriction was reduced by splitting the exhaust pipe behind the catalytic converter and adding dual mufflers and tailpipes. Automatics still came only with the lower performance 302 HO and throttle body fuel injection, even though horsepower was upgraded to 180 hp early in the model year.
D80L cylinder heads? 
