Rocker Arm Studs Choose from three series of rocker VWXGV+LJK(QHUJ\DQG0DJQXPURFNHU studs work well with moderate valve
SB Chevy 3-Pc. Aluminum Timing Cover COM310 Unique, three-piece design timing cover allows FDPVKDIWWLPLQJDGMXVWPHQWVZLWKRXWKDYLQJWR remove the harmonic balancer or disturb the IURQWRLOSDQVHDO/LJKWZHLJKWWLPLQJFRYHULV manufactured from rigid, billet aluminum and is sold complete with necessary hardware. Double-Roller Timing Chain Sets Comp offers a variety of true, double roller timing sets. Magnum sets are ideal for “claim- HU´RUPLOGUDFLQJDSSOLFDWLRQVZKLOH+L7HFK VHWVDUHGHVLJQHGIRUVHULRXVUDFLQJ(DFKVHW features hardened iron camshaft gear, three key- way billet steel crank sprocket and heat treated, true double roller timing chain. Part No. Description Magnum Timing Chain Sets COM2100 SB Chevy, 1955-91 Exc. OEM Roller Cam
lift and spring pressures. The Hi-Tech Race studs are ideal for high-RPM roller cam equipped race cars. Sold in sets of 16.
Base Thread
Stud Size
Stud Length
Part No. Size Length COM4500-16 High Energy Studs 7/16" .680" 3/8" 1.750" COM4501-16 High Energy Studs 7/16" .680" 7/16" 1.750" COM4502-16 Magnum Studs 7/16" .680" 3/8" 1.750" COM4503-16 Magnum Studs 7/16" .750" 7/16" 1.750" COM4504-16 Magnum Ford Studs 5/16" .680" 3/8" 1.750" COM4505-16 Hi-Tech Race Studs 7/16" .680" 3/8" 1.750" Rocker Arm Adjusting Nuts Description
Alloy nuts provide ultimate strength and locking force. Stud girdle poly locks are ground for minimum runout and tapered for extra strength in the locking area. Sold in sets of 16. Part No. Description
Stud Size
COM2135* COM2138*
SB Ford 351W, 1969-84 SB Ford 302-351W, 1984-92
COM4508-16 COM4600-16 COM4601-16 COM4602-16 COM4603-16 COM4604-16 COM4610-16
Stud Girdle Adjusting Nuts
7/16"
Hi-Tech Polylock For Aluminum/Stainless/Pro Magnum Rockers 7/16"
Hi-Tech Timing Chain Sets COM3100
Hi-Tech Polylock For Aluminum/Stainless/Pro Magnum Rockers
SB Chevy, 1955-91 Exc. OEM Roller Cam
3/8" 3/8"
Magnum Polylock Magnum Polylock High Energy Polylock
SB Chevy, Includes Billet Steel Cam Gear And Thrust Bearing
COM7100 #
Keyway Adjustable Billet Timing Chain Set COM7138
7/16"
3/8"
SB Ford, 1965-88 289-351W
Rocker Arm Adjusting Kit For SB Ford With Non-Adjust. Rockers
* Accommodates two-piece fuel eccentric. # Includes billet steel cam gear, thrust bearing and 9 keyway crank sprocket. SB Chevy Adjustable Billet Timing Set COM8100 Manufactured with high-strength billet
5/16"
Shaft-Mount Aluminum Rocker Arms For GM LS COM1500 (QJLQHHUHGIRUSRSXODU*0 /6/6DQG/6 engines with cathedral port cylinder heads, shaft rocker arms offer increased valvetrain stability and increased horsepower. 2024 aluminum-construction rocker arms include an internal oiling V\VWHPWKDWSURYLGHVDFRQVLVWHQWÀRZRIRLOIURPWKHSXVKURG cup to the shaft bearings and the roller tip. Sold complete with 1.7 ratio roller rocker arms and 8620 steel shafts.
gears, seamless heavy-duty dou- ble-roller timing chain and Thor- rington roller thrust bearing. The two-piece billet cam sprocket allows
changing cam timing without removing the degree wheel or re- OHDVLQJWKHYDOYHWUDLQORDG7LPLQJFDQEHDGMXVWHGPD[LPXP advance/retard in 2° increments. Ideal for all street and race DSSOLFDWLRQV:LOOQRW¿WIDFWRU\K\GUDXOLFUROOHUFDP Cam Lock Plate COM4605 &DPORFNSODWHKROGVWKHFDPEROWV¿UPO\LQ place. Fits big and small block Chevys. Thrust Buttons Cam thrust buttons ride between the front of the timing gear and the back of the timing cover to hold the cam in its proper location. Available in solid nylon and roller thrust bearing versions. Part No. Description COM200 Roller Button SBC 265-400 C.I., .795" Length COM202 Nylon Thrust Button SBC 265-400, 90° V-6, .810" Length
GM LS Engine Plug Kit COM251 .LWLQFOXGHVDOORIWKHKDUGWR¿QGSOXJVWR VHDOWKHZDWHUDQGRLOJDOOHULHVRID*0 /6VHULHVHQJLQH3OXJVDUHPDQXIDF - tured from brass or galvanized steel to resist corrosion and provide an extended life.
Valve Train Assembly Spray COM106 /XEULFDQWFOLQJVWRFRPSRQHQWVWRSURWHFWYDOYH springs, rocker arms, and pushrods at initial start-up.
Ground Shipment Only
276 2019-20 CIRCLE TRACK PARTS AND ACCESSORIES
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