STREET PERFORMANCE/COMPETITION VALVES
Chevrolet Big Block 396-454 Manley - Cont. Part No. Description Dia.
Length
Qty.
Severe-Duty Valves Intake Valves MAN11784-8
Severe-Duty, 11/32" Severe-Duty, 11/32" Severe-Duty, 11/32" Severe-Duty, 11/32" Severe-Duty, 11/32"
2.300" 5.444" 2.300" 5.494" 2.300" 5.610" 2.325" 5.509" 2.350" 5.610" 2.375" 5.600" 2.400" 6.600"
8 8 8 8 8 8 8
MAN11854-8 MAN11878-8 MAN11838-8 MAN11880-8 MAN12340-8 † MAN11582-8
Severe-Duty, 11/32" + .350" Brodix
Severe-Duty, 11/32"
† These valves are specifically made for Brodix 383 Head Hunter cylinder heads. Titanium Valves Exhaust Valves MAN11921-1 †
Titanium Square Groove, 3/8", Big Chief/Pontiac Pro Stock 1.900" 6.450"
1
Intake Valves MAN11920-1 †
Titanium Square Groove, 3/8", Big Chief/Pontiac Pro Stock 2.400" 6.600"
1
† Requires tip protection. Use Manley wear caps P/N MAN42104-16 Note: Most of these valves are available individually. Replace -8 with a -1 for a single valve.
VALVE SPRINGS - See Page 538-548
VALVE SPRING RETAINERS, LOCKS, SEATS, & SHIMS See Page 548-554 VALVE STEM SEALS, LASH CAPS, & ROTATOR ELIMINATORS See Page 554-556
ROCKER ARMS
Chevrolet “W” Engine 348-409 Aluminum Full Roller Rocker Arms Part No. Description Stud Ratio Qty. Edelbrock EDE77790 Extruded 7/16" 1.7 16 Crane Cams CRN15750-16 Extruded 3/8" 1.7 16 Chevrolet Big Block 396-454 Original Equipment Replacement Rocker Arms Part No. Description Stud Ratio Qty. Comp Cams COM1211-16 Long-Slot Replacement 7/16" 1.7 16 Crane Cams CRN13800-16 Long-Slot Replacement 7/16" 1.7 16 Most of these rocker arms are available individually. Replace the -16 with a -1.
EDE77790
COM1211-16
213
2021-22 ENGINE BUILDER CATALOG
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