Page 712 - 2022-23 Auto Performance Drag Racing

Ford Modular 4.6/5.4L Twisted Wedge Street/Strip Cylinder Head TRFTFS-51910001-M38
Twisted Wedge 185-series
DRAG RACING
SB Chevy Gen. III GenX
Street/Strip Cylinder Heads
Increase the performance of GM LS-series engines. GenX alu- minum cylinder heads have a 15° to 13.5° reduction in valve angle to reduce valve shrouding and increase mid-lift air flow. Heads are CNC-ported and include 1.300" dual valve springs and titanium retainers. Available for LS1 and LS2, in pairs, completely assembled.
BB Chrysler PowerPort Cylinder Heads
Aluminum cylinder heads for big block Chrysler include many improvements over OEM cast iron heads. Heads include an optimized runner design with CNC-porting for dramatically improved flow. Compatible with OEM-
style pistons, roller rocker arms,
intake manifolds, and headers, fully
assembled heads include stainless
11/32" valves, dual valve springs, and
choice of steel or titanium retainers. Sold per pair.
*Heads include titanium retainers.
SB Chrysler PowerPort Cylinder Heads NEW!
Suited to both early "LA" and
"Magnum" small block Chrysler
engines, aluminum PowerPort
cylinder heads for small block
Chrysler flow significantly
better than stock iron heads.
Sold per pair, CNC-ported heads are
fully assembled with dual valve springs, stainless steel valves and choice of steel or titanium retainers.
cylinder head includes relo-
cated combustion chambers
and intake valves that dramatically
increase mid-lift air flow, while provid-
ing added piston-to-valve clearance and valve-to-bore clear- ance, allowing higher lift cams, and large valves without the need for machine work. Head fits all 2V Romeo and Windsor engines, and is fully compatible with all OE-type camshafts, followers, lash adjusters, valve covers, and most front covers. Sold each as a fully assembled cylinder head.
Assembled Cyl. Head 185cc 1.840” 1.450” .940”/1.050” 38cc
BB Ford PowerPort Cylinder Heads
Add significant horsepower and
torque to big block Ford engines.
PowerPort aluminum heads are
offered for 429-460 or 390-428
"FE" engines in "Fast as Cast" of
CNC-ported versions. "Fast as Cast"
are engineered for street/strip, while CNC-ported heads are suited to competition engines. Sold per pair, fully assembled with dual valve springs and stainless steel valves. Heads have no provision for EGR.
*Heads include titanium retainers.
SB Chevy Ultra 18° 250 Race
Cylinder Head
TRFTFS-3181T001-C01
Engineered for high-RPM drag
race engines, Ultra 18° 250
cylinder heads provide more
horsepower out-of-the box than fully prepped OEM-style 23° heads.. Aluminum head includes CNC-profiled combustion chambers and competition-ported runners for maximum flow. Head accepts most 18° intake manifolds, headers, and re- lated components. Requires offset shaft-mounted rocker arms and mechanical roller camshaft with offset intake lifters.
*Heads include titanium retainers.
Cylinder Head Accessories
Part No.
Description
Part No.
Description
Intake Runner
Comb. Chamber
Valve Spring
Int. Valve
Exh. Valve
TRFTFS-3061T001
LS1 Cyl. Heads
220cc
64cc
1.300" Dual
2.040"
1.575"
TRFTFS-3061T001-C02
LS2 Cyl. Heads
225cc
65cc
1.300" Dual
2.055"
1.575"
Description
Intake Runner
Int. Valve
Exh. Valve
Valve Spring
Comb. Cham. Volume
Part No.
Description
Intake Runner
Comb. Chamber
Valve Spring
Int. Valve
Exh. Valve
TRFTFS-61617801-C00
CNC-Ported Street Heads
240cc
78cc
1.460" Dual
2.190"
1.760"
TRFTFS-61617802-C00
CNC-Ported Street Heads
240cc
78cc
1.550" Dual
2.190"
1.760"
TRFTFS-61617802-C01
CNC-Ported Comp Heads
270cc
78cc
1.550" Dual
2.190"
1.760"
TRFTFS-6161T784-C00*
CNC-Ported Street Heads
240cc
78cc
1.560" Dual
2.190"
1.760"
TRFTFS-6161T784-C01*
CNC-Ported Comp Heads
270cc
78cc
1.560" Dual
2.190"
1.760"
Part No.
Description
Intake Runner
Comb. Chamber
Valve Spring
Int. Valve
Exh. Valve
BB Ford 429-460 Cylinder Heads
TRFTFS-53410001
"Fast as Cast" Heads
290cc
74cc
1.460" Dual
2.200"
1.760"
TRFTFS-5341T010-C01*
CNC-Ported Race Heads
325cc
78cc
1.640" Dual
2.250"
1.760"
BB Ford 390-428 Cylinder Heads
TRFTFS-56417002-C00
CNC-Ported Street Heads
175cc
70cc
1.550" Dual
2.190"
1.625"
Part No.
Intake Runner
Comb. Chamber
Valve Spring
Int. Valve
Exh. Valve
TRFTFS-61417801-C00
190cc
60cc
1.460" Dual
2.020"
1.570"
TRFTFS-6141T784-C00*
190cc
60cc
1.560" Dual
2.020"
1.570"
Description
Intake Runner
Int. Valve
Exh. Valve
Valve Spring
Comb. Cham. Volume
Assembled Cyl. Head
250cc
2.150”
1.600”
1.560”
56cc
TRFTFS-92025
BB Chrysler "B"/"RB" Cylinder Head Bolt Kit NEW!
TRFTFS-92030
SB Chrysler Cylinder Head Bolt Kit, Hex Head NEW!
TRFTFS-31500811*
SB Chevy Valve Cover Adapters, Centerbolt, Increases Height, Pair
TRFTFS-51400265
SB Ford Thermactor Plugs, Used to Plug A.I.R. Passages, Each
TRFTFS-51400419
SB Ford Head Bolt Bushings, 1/2" To 7/16", 20 Pcs.
TRFTFS-51411801
SB Ford Cast Aluminum Valve Covers, Black, Pair
TRFTFS-61600613
BB Chrysler Rocker Arm Shaft Studs, 3/8” Dia., 10-Pack
710
* Requires narrow-body rocker arms.
2022-23