first fuel injected 302
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85 and up 5.0L HO's had roller lifters, and the roller lifter block, of course. I don't have any pictures, but the regular non HO 5.0 blocks from about 85-86 will accept the roller tappets, and roller tappet cams. But the bosses for the spider hold down bolts must be drilled and tapped on the non-HO 5.0L's. If the valley doesn't have any thing bolted into it (..ie the spider) that holds down the lifters, then it's not a roller tappet engine.
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Just to confirm some of the previous info: I know that at least some 85s were equipped with EFI 302s, cuz' I own one. Mine is a stock, light duty F-250, 4X4 with an AOD. It's got an EFI 302 and was from the factory that way.
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1985 302 straight port fuel injection pick up.
I had a new1985 ford pickup with a 302 with straight port fuel injection. Fastest truck I ever drove. Many who drove it agreed. Only made them in 85, something to do with emissions.
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From: south louisiana
First, there was the CFI (Central Fuel Injection) fuel injection from 84 and 85. This was a throttle body style fuel injection atop a carb type intake manifold. CFI performed poorly compared to a four barrel carb, and it didn't tolerate any engine modifications that increased airflow. The CFI 302's used flat tappet cams with the 351w firing order.
The first Sequential Electronic Fuel Injection (SEFI) system was on the 86 5.0L HO. The HO SEFI motors used a roller tappet cam that was first used on the four barrel carbed 85 5.0L HO. These roller tappet cams use the 351w firing order. The Computor was speed density until 1989 (88 in California), after which it was mass air.
The regular pass car SEFI motors as used on Crown Vics, Town Cars ..ect.. came in 87 and are similar to the Mustang HO in appearance, but the throttle body is on the drivers side of the upper intake, instead of on the passenger side. The pass car SEFI motors used a flat tappet cam that uses the old 289/302 firing order. The pass
car SEFI motors had Speed Density computor controls.
Truck 5.0L motors also got EFI in 87, as reported by Mr Roehl. The truck motors used speed density and the cams were flat tappet(289 firing order), untill the mid 90's. The last truck 5.0L's had mass air computors and roller tappet cams. The 95-96 truck 5.0L use the 351w firing order. My guess is that they just started using the Mustang 5.0L HO short blocks in the trucks, that had been built in the Cleveland engine plant. I had a 96 F150, and in my experiance the later truck 5.0's had much more punch and got noticably better fuel milege than the earlier truck EFI 5.0's.
The first Sequential Electronic Fuel Injection (SEFI) system was on the 86 5.0L HO. The HO SEFI motors used a roller tappet cam that was first used on the four barrel carbed 85 5.0L HO. These roller tappet cams use the 351w firing order. The Computor was speed density until 1989 (88 in California), after which it was mass air.
The regular pass car SEFI motors as used on Crown Vics, Town Cars ..ect.. came in 87 and are similar to the Mustang HO in appearance, but the throttle body is on the drivers side of the upper intake, instead of on the passenger side. The pass car SEFI motors used a flat tappet cam that uses the old 289/302 firing order. The pass
car SEFI motors had Speed Density computor controls.
Truck 5.0L motors also got EFI in 87, as reported by Mr Roehl. The truck motors used speed density and the cams were flat tappet(289 firing order), untill the mid 90's. The last truck 5.0L's had mass air computors and roller tappet cams. The 95-96 truck 5.0L use the 351w firing order. My guess is that they just started using the Mustang 5.0L HO short blocks in the trucks, that had been built in the Cleveland engine plant. I had a 96 F150, and in my experiance the later truck 5.0's had much more punch and got noticably better fuel milege than the earlier truck EFI 5.0's.
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