tfi
Postmaster
Joined: Jun 2001
Posts: 4,496
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Used the tfi distributor on efi engines.
The 351w went roller compatible in 93 1/2, you would see F4TE stamped on the block as part of the casting number. These engines still used flat tappet camshafts.
The only F4TE 351w engines I know of that came from the factory with an actual roller camshaft, were the 97 f-250's.
The first generation lightnings had F4TE blocks but flat tappet camshafts as well.
The 351w went roller compatible in 93 1/2, you would see F4TE stamped on the block as part of the casting number. These engines still used flat tappet camshafts.
The only F4TE 351w engines I know of that came from the factory with an actual roller camshaft, were the 97 f-250's.
The first generation lightnings had F4TE blocks but flat tappet camshafts as well.
