2021-22 Circle Track Catalog

Fuel Pump Block-Off Plates Block the fuel pump boss when mechanical fuel SXPSLVQRWXVHG$YDLODEOHLQDQRGL]HGDOXPLQXP chrome-plated steel, and black anodized billet alumi- QXP¿QLVKHV

Aluminum Crankshaft and Alternator Pulleys V-belt pulleys are machined with ex-

Black Anodized Aluminum

Chrome - Plated Steel

Black Anodized Billet Aluminum

Description

tra-deep grooves for belt

Small Block Chevy

MOR65391 MOR65393 MOR65395

MOR64050

MOR64060

Ford (Exc. 351C, 351M-400)

MOR65392

— MOR65396

MOR64110

MOR64800

retention. Smaller crank pulley diameter slows fan, water pump, DQGDOWHUQDWRUIRUOHVVKRUVHSRZHUGUDZ/DUJHDOWHUQDWRUSXOOH\V reduce alternator speed. Use 36° x 17/32" belt. Part No. Description Crankshaft Pulleys MOR64050 SB Chevy, Single Groove, Pre-1969, Short Water Pump, 5.25" O.D., 30% Reduction MOR64060 SB Chevy, Double Groove, Pre-1969, Short Water Pump, 5.40" O.D., 25% Reduction MOR64110 SB Chevy, Double Groove, 1969-Up, Long Water Pump, 4.04" O.D., 50% Reduction Alternator Pulley MOR64800 GM/Ford, Single Groove, 5.00" O.D. Cooling System Expansion Tanks 'HYHORSHGIRUXVHZKHUHWKHWRSRIWKHUDG L DWRULVPRXQWH GEHORZWKHPDQLIROG¿OOHUQHFN Each tank is made of aluminum with one 1/4" SLSH¿WWLQJQHDUWKHWRSIRURYHUÀ RZDQGRQH SLSH¿WWLQJRQWKHERWWRPIRUD¿OOHUOLQHWR the cooling system. Part No. Description MOR63650 1-1/2-Qt. Capacity, Stamped Neck, 3-5/8" Deep MOR63651 1-1/2-Qt. Capacity, Billet Neck, 3-5/8" Deep MOR63655 1-Qt. Capacity, Stamped Neck, 2-5/8" Deep MOR63656 1-Qt. Capacity, Billet Neck, 2-5/8" Deep MOR63772 1-1/4-Qt. Expansion/1 Qt. Recovery Tank, Billet Neck MOR63773 1-1/4-Qt. Expansion Tank with Sight Tube, Billet Neck Coolant Expansion Tank for Subaru WRX/STI NEW! MOR63871 $GLUHFWEROWRQIRUWKH2(0SODVWLFXQLWIRXQGRQ 6XEDUX:5;DQG67,IDEULFDWHGDOXPLQXP tank includes a provision for the OEM siphon hose. Sold complete with billet aluminum cap. 4CFKCVQT1XGTƃQY6CPM 3ODVWLFRQHTXDUWRYHUÀRZWDQNKDVDGLDPHWHUDQG LVKLJK$KRVH¿WWLQJDQGGUDLQFRFNDUHLQFOXG - ed. Mounting bracket is available separately. Part No. Description MOR63657 Radiator Overflow Tank MOR63401 Universal Mounting Bracket, Fits 3"-3.25" Dia. Tanks Racing Radiator Caps High-pressure radiator caps are engineered for standard radiator necks and utilize stainless steel springs and solid brass spring retainers. Part No. Description MOR63320 19-21 PSI MOR63324 23-25 PSI MOR63328 27-29 PSI MOR63332 31-33 PSI NEW!

Lightweight Fuel Pump Push Rods /LJKWZHLJKWIXHOSXPSSXVKURGVZLWKKDUGH QHG ends reduce reciprocating mass, preventing SXPSDUPÀRDWDQGIXHOVWDUY DWLRQ)RU XVHZLWKÀDWWDSSHWFDPVKDIWVRQO\ Part No. Description MOR65750 SB Chevy MOR65752

“Rocket” Block, .200" Longer

Aluminum Water Pumps Pumps have reinforced housings for H[WUDVWUHQJWKDQGDUH¿WWHGZLWKLP - pellers to reduce drag to save horse-

power. Water pump spacer kits to convert short water pumps to long type are sold separately. Part No.

Description

MOR63500 SB Chevy, 1955-68 “Short” Design, 5/8" Shaft MOR63510 SB Chevy Water Pump Spacers, Converts MOR63500 to “Long” Design Universal Water Pump Pulley Shim Kit MOR64035 Shims install between the water pump pulley DQGWKHGULYHÀDQJHWRSURSHUO\DOLJQEHOW drive. The kit contains two 1/16" and one 1/8" spacers. Fits all GM and Ford water pumps with either 3/4" or 5/8" shaft. Water Outlet Restrictor Kit MOR63440 Fits all GM V-8’s, V-6’s, and small block

)RUGV$QRGL]HGDOXP LQ XPUHVWULFWRU plates mount under the water outlet on the intake manifold. By reducing the RXWOHWÀRZZDWHUDEVRUEVPRUHKHDWIRU LPSURYHGFRROLQJ.LWFRQVLVWVRIWKUHH SODWHVZLWKDQG,'KROHV 2'  Deck Plug Kit MOR37800 ,QVWDOO137SOXJVLQEORFNWRJUHDWO\UHGXFH upper cylinder wall distortion in small block and

ƒ9&KHY\V+ROHVPXVWEHWDSSHGEHIRUHWKHSOXJV are screwed in, and block machining is necessary after LQVWDOODWLRQ3OXJVDOVRUHVWULFWZDWHUÀRZWRWKHF\OLQGHUKHDGV by reducing water passage holes. Six per package.

Temperature Fitting MOR63645 &RUURVLRQUHVLVWDQWEUDVV¿WWLQJ¿WV137 holes and accepts sending units with 5/8"-18 threads.

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CIRCLE TRACK 2021-22

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