Page 129 - 2018 Racecar Engineering Open Wheel Parts and Accessories Catalog

Pushrod Length Checker COM7901-1 High Energy Die-Cast Aluminum
Roller Rocker Arms
Determine correct pushrod length quickly and easily when building (ɈVYKHISL YVJRLY HYTZ OH]L KPL JHZ[ HS\-
race engines. Made from a thin wall 5/16" pushrod that is cut and minum bodies. Needle-bearing fulcrums and
threaded. Checker has 5/16" ball on each end and extends from 7.5" roller bearings reduce friction and decrease oil
to 8.7". temperature. Sold in sets of 16.
Rocker Rocker
Part No. Description Stud Ratio
Pushrod Guide Plates COM17001-16 SB Chevy 265-400 3/8" 1.5
A must for the high lift and spring COM17002-16 SB Chevy 265-400 3/8" 1.6
pressure of per for mance engines, guide COM17004-16 SB Chevy 265-400 7/16" 1.5
plates are designed using a stereolitho-
NYHWOPJ WYVJLZZ MVY \S[PTH[L Ä[ ,_HJ[ COM17005-16 SB Chevy 265-400 7/16" 1.6
stud placement and round ed contact points are two out stand ing
features of the black-oxidized guide plates. Sold in sets of 8.
Ultra-Gold Aluminum
Part No. Description Type Pushrod Size
COM4800-8 SB Chevy 265-400 Raised 5/16" Roller Rocker Arms
COM4808-8 SB Chevy 265-400 Flat 5/16" CNC-machined aluminum roller rockers are rigid,
COM4810-8 SB Chevy 265-400 Flat 3/8" WYV]PKL Z\ɉJPLU[ JSLHYHUJL MVY 6+ ]HS]L
springs and can withstand extremely high spring
Adjustable Pushrod Guide Plates pressures and lifts. Sold in sets of 16.
Often required when cylinder heads have Rocker Rocker
relocated intake ports, guide plates may be Part No. Description Stud Ratio
^LSKLK HM[LY ÄUHS HKQ\Z[TLU[Z :VSK PU ZL[Z VM LPNO[ COM19001-16 A SB Chevy 265-400 3/8" 1.5
COM19002-16 A SB Chevy 265-400 3/8" 1.6
Part No. Description Type Pushrod Size Stud Dia.
COM4835-8 SB Chevy/SB Ford, 2-Pc. Flat 5/16" 7/16" COM19004-16 A,B SB Chevy 265-400 7/16" 1.5
COM4839-8 SB Chevy 265-400 Flat 3/8" 7/16" COM19005-16 A,B SB Chevy 265-400 7/16" 1.6
COM19043-16 SB Ford 289-351W 3/8" 1.6
Rocker Arm Studs A: Will not replace late model rail rocker.
Choose from three series of rocker studs. B: Must use screw-in studs and guide plates.
High Energy and Magnum rocker studs
work well with moderate valve lift and
ZWYPUN WYLZZ\YLZ ;OL /P ;LJO 9HJL Z[\KZ HYL PKLHS MVY OPNO 974 Ultra Pro Magnum
roller cam equipped race cars. Sold in sets of 16.
Roller Rocker Arms
Base Thread
Stud Stud
Part No. Description Size Length Size Length <S[YH 7YV 4HNU\T Z YPNPK ^LI SPRL KLZPNU YLK\JLZ
COM4500-16 High Energy Studs 7/16" .680" 3/8" 1.750" moment of inertia. Made of 8650 chrome moly and
COM4501-16 High Energy Studs 7/16" .680" 7/16" 1.750" ÄUPZOLK PU ISHJR V_PKL YVJRLY HYTZ OH]L V]LYZPaLK
COM4502-16 Magnum Studs 7/16" .680" 3/8" 1.750" trunnions, sorted needle bearings and hardened roller
COM4503-16 Magnum Studs 7/16" .750" 7/16" 1.750" tips. Sold in sets of 16.
COM4505-16 Hi-Tech Race Studs 7/16" .680" 3/8" 1.750" Rocker Rocker
Part No. Description Stud Ratio
Rocker Arm Adjusting Nuts COM1601-16 SB Chevy 265-400 3/8" 1.52
Alloy nuts provide ultimate strength COM1602-16 SB Chevy 265-400 3/8" 1.6
and locking force. Stud girdle poly locks COM1604-16 SB Chevy 265-400 7/16" 1.52
are ground for minimum runout and COM1605-16 SB Chevy 265-400 7/16" 1.6
tapered for extra strength in the locking area. Sold in sets of 16.
Part No. Description Stud Size
COM4508-16 Stud Girdle Adjusting Nuts 7/16" Ultra Pro Magnum XD
Hi-Tech Polylock Roller Rocker Arms
COM4600-16 7/16"
For Aluminum/Stainless/Pro Magnum Rockers The next design in the evolution of steel stud
Hi-Tech Polylock
COM4601-16 3/8" TV\U[ YVJRLY HYTZ <S[YH 7YV 4HNU\T ?+ YVJR-
For Aluminum/Stainless/Pro Magnum Rockers
COM4602-16 Magnum Polylock 3/8" LYZ VɈLY PUJYLHZLK Z[YLUN[O HUK \UZ\YWHZZLK
COM4603-16 Magnum Polylock 7/16" durability. Rocker arms are made of 8650 steel
COM4604-16 High Energy Polylock 3/8" with super accurate ratios, billet pushrod seat
inserts, precision-sorted needle bearings and
hardened roller tips. Compatible with most diameter valve springs
and retainers. Covered by a lifetime guarantee against breakage.
Sold in sets of 16.
Valve Train Assembly Spray COM106 Rocker Rocker
Lubricant clings to components to protect valve springs, Part No. Description Stud Ratio
rocker arms and pushrods at initial start-up. COM1801-16 SB Chevy 265-400 3/8" 1.5
COM1804-16 SB Chevy 265-400 7/16" 1.5
Ground
Shipment COM1805-16 SB Chevy 265-400 7/16" 1.6
Only
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