Chevy BBC 454 Guide Plates (3/8" Pushrod - 7/16" Stud Hole - 1 Piece) These Speedmaster flexplate dust covers

These Speedmaster flexplate dust covers have brilliant triple-chrome plating and are made from heavy-gauge steel

The use of 6 pinion gears means the stress on gears is spread over a greater surface area

with the performance and durability required to reach the winner's circle

Speedmaster ring and pinion preload spacer

The Speedmaster MidRise Air design features the identical plenum and runner design as the normal MidRise

Chevy BBC 454 Guide Plates (3/8" Pushrod - 7/16" Stud Hole - 1 Piece) These Speedmaster flexplate dust coversYou need guideplates to keep your pushrods from deflecting under high rpm conditions. That's just what our Speedmaster guideplate sets do, they are made from 5140 Chromoly steel, nitrided and black oxide coated for corrosion and wear resistance.