Page 58 - 2021-22_EngineCatalogAP

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.
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.
STREET PERFORMANCE/COMPETITION VALVES
283-400
Ferrea
Part No.
Description
Intake Runner
Comb. Chamber
Plug Angle
Valve Angle
Intake Valve
Exhaust Valve
SPMPCE281.2001
Assembled,
1.450" Springs for Hyd. Cam .550" Max Lift
190cc
64cc
Straight
23°
2.020"
1.600"
SPMPCE281.2004
VAssembled,
1.450" Springs for Hyd. FT Cam .550" Max Lift
190cc
64cc
Straight
23°
2.020"
1.600"
Part No.
Description
Intake Runner
Comb. Chamber
Plug Angle
Valve Angle
Intake Valve
Exhaust Valve
TRFTFS-3181T001-C01
Assembled - 1.560" Dual Spring
250cc
56cc
Angle
18°
2.150"
1.600"
TRFTFS-30410003
Super 23, 195, Assembled 1.460" Springs
195cc
62cc
Angled
23°
2.020"
1.600"
Part No.
Description
Diameter
Length
Qty.
5000 Series Competition Valves
Exhaust Valves
FERF801500-8
OEM Replacement, 11/32"
1.500"
4.910"
8
FERF5004-8
High-Performance, 11/32"
1.500"
4.910"
8
FERF5005-8
High-Performance, 11/32"
1.600"
4.910"
8
FERF801600-8
OEM Replacement, 11/32"
1.600"
4.910"
8
FERF5105-8
High-Performance, 11/32"
1.600"
4.935"
8
FERF5046-8
High-Performance, 11/32"
1.600"
4.960"
8
FERF5025-8
High-Performance, 11/32"
1.600"
5.010"
8
FERF5006-8
High-Performance, 11/32"
1.625"
5.010"
8
Intake Valves
FERF5060-8
High-Performance, 11/32"
1.840"
4.910"
8
FERF5161-8
High-Performance, 11/32"
1.840"
4.935"
8
FERF5001-8
High-Performance, 11/32"
1.940"
4.910"
8
FERF801940-8
OEM Replacement , 11/32"
1.940"
4.910"
8
FERF5101-8
High-Performance, 11/32"
1.940"
4.935"
8
FERF5048-8
High-Performance, 11/32"
1.940"
5.010"
8
FERF5002-8
High-Performance, 11/32"
2.020"
4.910"
8
FERF802020-8
OEM Replacement, 11/32"
2.020"
4.910"
8
FERF5102-8
High-Performance, 11/32"
2.020"
4.935"
8
FERF5027-8
High-Performance, 11/32"
2.020"
5.010"
8
FERF5003-8
High-Performance, 11/32"
2.055"
4.910"
8
FERF5022-8
High-Performance, 11/32"
2.055"
5.010"
8
FERF5023-8
High-Performance, 11/32"
2.080"
5.010"
8
56 2021-22 ENGINE BUILDER CATALOG
CHEVROLET SMALL BLOCK