Reply to "Please help a beginner ☺ with Valve Spring Questions"

George PAdmin.

I'm not familiar with Scorpion tappets, other than the fact that they are inexpensive ... that's why everybody purchases them! So to be safe I must reply no, unless the block has tappet bore bushings with 0.060" restrictions the Scorpion tappets are most likely inappropriate.

If the block has no tappet bore bushings, then the solid flat tappet must be of the design with internal oil metering plates. Speed Pro AT2000 solid flat tappet. Manufactured in the US by Johnson Lifters. Also sold by Crower Cams under part number 66915X980-16P. Thee are the original type tappets employed in the Boss 351 Mustang engine. There was a most specific reason why Ford changed their tappet design. This is because tappets employing edge orifice" type oil metering will in every situation send too much oil to the valve train.

9/9/1610:15 PM

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