CYLINDER HEADS
283-400 (Cont.) Speedmaster Aluminum Cylinder Heads
Speedmaster 23° Small Block Chevy aluminum cylinder heads feature high-quality alu- minum alloy, standard 4-polt perimeter valve cover rail, 3-angle machined ductile iron valve seats, and bronze valve guides. Assembled using 2.020" intake and 1.600" exhaust stainless steel valves, PC valve seals, 1.450" single valve springs with damper, and chrome moly retainers and locks. Rocker arm studs and guide plates not included. Sold in pairs.
Intake Runner
Comb. Chamber
Plug Angle
Valve Angle
Intake Valve
Exhaust Valve
Part No.
Description
Assembled, 1.450" Springs for Hyd. Cam .550" Max Lift VAssembled, 1.450" Springs for Hyd. FT Cam .550" Max Lift
SPMPCE281.2001
190cc
64cc
Straight
23°
2.020"
1.600"
SPMPCE281.2004
190cc
64cc
Straight
23°
2.020"
1.600"
Trick Flow Ultra 18° Aluminum Head An ideal head for drag racing and high-rpm circle track applications. Trick Flow Ultra 18° heads feature CNC-profiled combustion chambers, CNC-ported competition 250cc intake runners, 100cc raised exhaust ports, 18° valve angle, titanium retainers, 10° locks, and bronze guides. Require the use of offset, shaft-mounted rocker arms, and mechanical roller camshaft with offset intake lifters. Fully assembled. Sold each.
Intake Runner 250cc 195cc
Comb. Chamber
Plug Angle Angle
Valve Angle
Intake Valve
Exhaust Valve 1.600" 1.600"
Part No.
Description
TRFTFS-3181T001-C01
Assembled - 1.560" Dual Spring
56cc 62cc
18° 23°
2.150" 2.020"
TRFTFS-30410003
Super 23, 195, Assembled 1.460" Springs
Angled
STREET PERFORMANCE/COMPETITION VALVES
283-400 Ferrea Part No.
Description
Diameter
Length
Qty.
5000 Series Competition Valves Exhaust Valves FERF801500-8
OEM Replacement, 11/32" High-Performance, 11/32" High-Performance, 11/32" OEM Replacement, 11/32" High-Performance, 11/32" High-Performance, 11/32" High-Performance, 11/32" High-Performance, 11/32" High-Performance, 11/32" High-Performance, 11/32" High-Performance, 11/32" OEM Replacement , 11/32" High-Performance, 11/32" High-Performance, 11/32" High-Performance, 11/32" OEM Replacement, 11/32" High-Performance, 11/32" High-Performance, 11/32" High-Performance, 11/32" High-Performance, 11/32" High-Performance, 11/32"
1.500" 1.500" 1.600" 1.600" 1.600" 1.600" 1.600" 1.625" 1.840" 1.840" 1.940" 1.940" 1.940" 1.940" 2.020" 2.020" 2.020" 2.020" 2.055" 2.055" 2.080"
4.910" 4.910" 4.910" 4.910" 4.935" 4.960" 5.010" 5.010" 4.910" 4.935" 4.910" 4.910" 4.935" 5.010" 4.910" 4.910" 4.935" 5.010" 4.910" 5.010" 5.010"
8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
FERF5004-8 FERF5005-8 FERF801600-8 FERF5105-8 FERF5046-8 FERF5025-8 FERF5006-8 FERF5060-8 FERF5161-8 FERF5001-8 FERF801940-8 FERF5101-8 FERF5048-8 FERF5002-8 FERF802020-8 FERF5102-8 FERF5027-8 FERF5003-8 FERF5022-8 FERF5023-8
Intake Valves
56
2021-22 ENGINE BUILDER CATALOG
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