SB Ford Twisted Wedge Street/Strip Cylinder Heads NEW! An improved combustion chamber design rotates the
SB Chevy Ultra 18° 250 Race Cylinder Head TRFTFS-3181T001-C01 Engineered for high-RPM racing engines, ultra 18° 250 race cylinder heads
provide more horsepower out-of-the box than fully prepped OEM-style 23° heads. Aluminum head LQFOXGHV&1&SUR¿OHG
valves over the center of the cylinder bores for optimum valve angles, locations, and chamber shape. Aluminum heads include IXOO\&1&PDFKLQHG FFLQWDNHUXQQHUV6ROGHDFKFRPSOHWH - ly assembled with stainless valves and high-performance dual valve springs.
combustion chambers and competition ported runners for max- LPXPÀRZ+HDGDFFHSWVPRVWLQWDNHPDQLIROGVKHDGHUV and related components. Requires offset shaft-mounted rocker arms and mechanical roller camshaft with offset intake lifters. 6ROGHDFK Intake Runner Intake Valve Exhaust Valve Valve Spring Combustion Chamber Volume 250cc 2.150" 1.600" 1.560" 56cc Small Block Chevy Valve Cover Adapters adapters allow using popular, early-style small block Chevy valve covers on late cen- terbolt-style cylinder heads. Increased height also allows using stud girdles for increased valvetrain stability. 6ROGFRPSOHWHZLWKQHFHVVDU\KDUGZDUHDQGWKLFNVWHHO core gaskets. SB Ford Twisted Wedge Cylinder Heads $QLPSURYHG&1&SUR¿OHGFRPEXVWLRQ chamber design rotates valves TRFTFS-31500811 6SHFLDOWKLFNVWHHO
Intake Runner
Comb. Chamber
Valve Spring
Int. Valve
Exh. Valve
Part No.
TRFTFS-52515601-C01 TRFTFS-52516601-C01
190cc 56cc 1.295" 2.055" 1.600" 190cc 66cc 1.295" 2.055" 1.600"
SB Chevy Gen. III GenX Street/Strip Cylinder Heads NEW!
Increase the performance RI*0/6VHULHVHQJLQHV *HQ;DOXPLQXPF\OLQGHU heads have a 15° to 13.5° reduction in valve angle to reduce valve shrouding and LQFUHDVHPLGOLIWDLUÀRZ Heads are CNC-ported and include 1.300" dual valve springs and titanium retainers. Avail- DEOHIRU/6DQG/6VROGHDFKFRPSOHWHO\DVVHPEOHG
Intake Runner
Comb. Chamber
Valve Spring
Int. Valve
Exh. Valve
Part No.
Description
TRFTFS-3061T001 LS1 Cyl. Heads 220cc 64cc 1.300" 2.040" 1.575" TRFTFS-3061T001-C02 LS2 Cyl. Heads 225cc 65cc 1.300" 2.055" 1.575" Cylinder Head Accessories NEW! Part No. Description TRFTFS-306SB600 GM LS Steam Line Plumbing Kit TRFTFS-30600611 GM LS Steam Line Fittings Only TRFTFS-51400419 SB Ford Head Bolt Reducer Bushings, 1/2" to 7/16", 20 Pcs. TRFTFS-51400520 SB Ford 289-351W Roller Rocker Arms, 1.6 Ratio, 7/16" Stud, 16 Pcs. TRFTFS-51400614 Rocker Arm Studs, 7/16"-20 x 1.900" Long, Ford/Chevy, 16 Pcs. TRFTFS-51400904 SB Ford 289-351 Premium Head Set, for Twisted Wedge Heads TRFTFS-52400622 SB Ford 302-351W Pushrod Guideplates, 5/16" Pushrods, Set of Four SB Ford Track Max Harmonic Balancer NEW! TRFTFS-19006 Rigid carbon steel elastomer-style harmonic balanc- HUPHHWVVWULQJHQW6),VSHFL¿FDWLRQV'HVLJQHG for small block Ford 289-351W (except 5.0L), external- ly balanced 28-oz. applications. Camshaft Degree Kit NEW! TRFTFS-90000-16
over the center of the cyl- inder bores for optimum valve angles, locations, and chamber shape. Alu- PLQXPKHDGVDUH¿WWHG
with 2.020" intake and 1.600" exhaust valves, intake valves that do not UHTXLUHÀ\FXWWLQJRISLVWRQV6ROGHDFKFRPSOHWHO\DVVHPEOHG
Intake Runner
Comb. Chamber
Valve Spring
Int. Valve
Exh. Valve
Part No.
TRFTFS-51410004-M58* 170cc 58cc 1.460" Dual 2.020" 1.600" TRFTFS-51410010-M61 170cc 61cc 1.460" Dual 2.020" 1.600" * Emissions legal. SB Ford Cast Aluminum Valve Covers TRFTFS-51411801 Cast from A319 aluminum
for rigidity and pre- vention of oil leaks. Valve covers are 3" and black powder coated with a raised 7ULFN)ORZ6SHFLDO - ties logo. Fits all 289- :HQJLQHV6ROGLQSDLUV
All inclusive kit allows degreeing cam- shafts quickly and precisely. Includes 11" dia. aluminum degree wheel, 0-1" travel dial indicator and stand with magnetic base, low-tension checking springs, wire pointer, TDC stop, and adapter bushings, all packed in a neat carrying case. Kit may also be used to check piston-to-valve clearance, crankshaft end play, ring gear backlash, etc.
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CIRCLE TRACK 2021-22
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