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Vehicle Info NeededBRODIXPART NUMBER: 158-9992016-3
BB-3 XTRA Series Top End Kit
$4,71651
Truck Freight
Ships on 09/18/2026
Lowest Price GuaranteeBB-3 XTRA 345 Series Cylinder Heads
BB-3 XTRA Series Top End KitCNC Ported 345cc Rectangle Intake Ports 119cc Combustion Chambers 2.300 in. Intake / 1.880 in. Exhaust Valves 1.625 in. Dia. Springs - 250# Seat Pressure Titanium Retainers Assembled Heads
Cylinder Head Specifications:
- Intake Port Volume: 345cc - Rectangle Port
- Combustion Chamber Volume: 119cc
- Valves: 2.300 in. dia. x 5.568 in. o.a.l. Intake / 1.880 in. dia. x 5.494 in. o.a.l. Exhaust ( 11/32 in. Stem Diameter)
- Valve Springs: 1.645 in. Diameter - Open Pressure: 745 lbs.; Closed Pressure: 255 lbs.
- Installed Height: 2.050 in.; Max Lift: .800 in.
- Spring Retainers: 1.625 in. 10-degree Titanium
- Rocker Studs: 7/16 in.
- Guide Plates: 3/8 in.
- Valve Seals: 11/32 in.
Facts and Related Components:
- Torque Heads: 70 ft-lbs.
- Torque Rocker Studs: 40-45 ft-lbs.
- Valve Angle: 24-degree and 4-degree Intake, 15-degree and 4-degree exhaust
- Angle Milling: .0066 in PER cc
- Flat Milling: .0050 in PER cc
- Pistons: 2-degree valve rolled piston
Part TypeTop End Kit
BrandBRODIX
Package Height2.15
Package Width2.25
Package Length2.4
Weight152.0 PG
Part CategoryPerformance Parts
Package Qty1
Package TypeEA
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