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AR154-4004
1-5/8" hub-to-hub and be fitted with either 9
Stainless Steel 4 into 1 Merge Collectors2-1/2" Primary's into 4-1/2" Collector Outlet
Stock LS rocker arms can experience cageless needle bearing failure when loads are increased
They're truly maintenance free
Guide Plate Set (Flat) 5/16" Pushrod, 8mm Stud CO4854-8 Callies AR154-4004Guide Plate Set (Flat) 5 16" Pushrod, 8mm StudSuit Chevy LS1 LS6 CO4854 8 4854 8 Designed using stereo lithography techniques for accurate fit; hardened and black oxide finished Feature exact stud placement and rounded contact points Necessary for high lift spring pressure environments of today's performance engines
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