Page 16 of Northern Tool & Specialty Catalog by Northern Auto Parts

Valve Train: Rocker Arms 16 Some items may not be legal for sale or use in California or on any pollution controlled vehicle. Aluminum Stud Girdles Stud Girdles reduce flex and part breakage. Increased valvetrain rigidity helps minimize energy loss. Each set comes with aluminum stabilizers and poly locks. Two pieces per set. Fits Chevy small block. 66950 For use with 3/8" stud......................$107.81 66951 For use with 7/16" stud ....................$107.81 Fits Chevy big block. 66981 For use with 7/16" stud......................107.81 Chevy Guide Plates Fits Chevrolet small block engines 5/16". Hardened. These precision stampings are carefully formed for exact fit. Each guide plate has been heat treated to increase the hardness and minimize wear. 8 pieces per package. 66880 5/16" S/B, Flat ................................$15.84 66881 5/16" S/B, Raised ............................$17.63 66895C 3/8" B/B ............................................call Screw-In 16-pc Rocker Stud Sets Fits Chevy S/B and Ford. 66870C 3/8" Studs......................................$20.47 Fits Chevy S/B B/B. 66871C 7/16" Studs ....................................$22.70 Heavy-Duty Extruded Aluminum Roller-Rocker Arms Designed for up to 10,000 RPM. This heavy duty design features an oversized body and fulcrum with a triangulated profile for additional rigidity and strength. Accommodates most oversized valve springs. American-made roller bearings are in self-contained bearing-cups for extra low friction wear. Each set includes 16 extruded aluminum roller rockers and 16 poly locks. If you would like to order a single roller rocker, please use your applicable part number and add a "P" at the end (ie "67708P"). Fits Chevy small block engines. 66928 1.5 Ratio, 3/8" Stud ........................$217.45 66928C 1.5 Ratio, 3/8" Stud ........................$219.28 66929 1.6 Ratio, 3/8" Stud ........................$217.45 66929C 1.6 Ratio, 3/8" Stud ........................$219.28 66930 1.5 Ratio, 7/16" Stud.......................$217.45 66930C 1.5 Ratio, 7/16" Stud.......................$219.28 66931 1.6 Ratio, 7/16" Stud.......................$217.45 66931C 1.6 Ratio, 7/16" Stud.......................$219.28 Extruded Aluminum Roller-Rocker Arms Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem tips. Precision machined to insure consistency and ratio accuracy. 16 extruded aluminum roller rockers and 16 poly locks. Fits Chevy small block engines. 66907 1.5 Ratio 3/8" Stud .........................$188.21 66907C 1.5 Ratio 3/8" Stud .........................$190.05 66908 1.6 Ratio 3/8" Stud .........................$188.21 66908C 1.6 Ratio 3/8" Stud .........................$190.05 66909 1.5 Ratio 7/16" Stud........................$188.21 66909C 1.5 Ratio 7/16" Stud........................$190.05 66910 1.6 Ratio 7/16" Stud........................$188.21 66910C 1.6 Ratio 7/16" Stud........................$190.05 66920C 1.5 Ratio 3/8" Stud (8 pcs) ................$190.05 1.6 Ratio 3/8" Stud (8 pcs) Fits Chevy small block engines w/ center hold-down valve covers. 66914 1.5 Ratio 3/8" Stud, Self Aligning........$217.45 66914C 1.5 Ratio 3/8" Stud, Self Aligning........$219.28 66915 1.6 Ratio 3/8" Stud, Self Aligning........$217.15 66915C 1.6 Ratio 3/8" Stud, Self Aligning .......$219.28 Fits Chevy big block engines. 66913 1.7 Ratio 7/16" Stud........................$206.48 66913C 1.7 Ratio 7/16" Stud........................$208.32 Fits Ford small block engines. 66911 1.6 Ratio 3/8" Stud .........................$188.21 66911C 1.6 Ratio 3/8" Stud .........................$190.05 66912 1.6 Ratio 7/16" Stud........................$188.21 66912C 1.6 Ratio 7/16" Stud........................$190.05 Fits Ford Alum. S/B Pedestal Mt. 77-94, 302HO 351W Hyd. Roller Cams. 66879 1.6 Ratio 5/16" Stud........................$193.86 66878 1.7 Ratio 5/16" Stud........................$193.86 Fits Ford 302 Boss 351C, 429-460. 66861C 1.73 Ratio 7/16" Stud ......................$220.08 Fits Oldsmobile 350-455. 66860C 1.6 Ratio 7/16" Stud........................$220.08 Fits Chrysler. Supplied with hardened shaft and hardware. 66869 1.5 Ratio for S/B ............................$281.67 66868 1.5 Ratio for B/B ............................$281.67 Rocker Pushrod Kits Rocker (Long Slot) Heat-Treated Pushrod Kit. Fits Chevy small block engines. 66923C 1.5 Ratio, 3/8" Stud .........................$63.76 Cast Chrome Moly Roller-Rocker Arms These rocker arms are cast of tough chrome moly alloy. Perfect for the average street engine. More rigid and durable than the stock, stamped variety. Roller tip reduces friction. Fits Chevy small block engines. 66933C 1.5 Ratio 3/8" Stud .........................$124.44 66925C 1.6 Ratio 3/8" Stud .........................$126.22 66926C 1.5 Ratio 3/8" Stud, Self Aligning........$144.02 66927C 1.6 Ratio 3/8" Stud, Self Aligning........$144.02 Stamped Roller-Tip Rocker Arms The super affordable way to reduce internal valve train friction and valve stem wear. Extra long slot eliminates rocker to stud interference when using high lift cams. 16 rockers, anti-gall grooved balls and nuts per package. Fits Chevy small block engines. 66906B 1.5 Ratio 3/8" Stud...........................$72.92 66906C 1.5 Ratio 3/8" Stud...........................$72.92 66922 1.6 Ratio 3/8" Stud...........................$87.54 66922C 1.6 Ratio 3/8" Stud...........................$89.37 Stamped Stock Long-Slot Rocker Arms For use when roller tip is not required. Proven OEM quality. Extra long slot eliminates rocker to stud interference when using high lift cams. 16 rockers, grooved balls and nuts per package. Fits Chevy small block engines. 66905 1.5 Ratio 3/8" .................................$39.66 67300 1.6 Ratio 3/8" .................................$51.60 Poly Locks for Roller-Rocker Arms Fits most extruded aluminum rocker arms. 16 per package. 66935 3/8" .............................................$16.38 66936 7/16"............................................$16.38 Grooved Balls and Nuts Fits most stamped rocker arms. Anti-gall balls. 16 each per package. 66924C 3/8" x 24 threaded studs ....................$18.67 Suffix C Clamshell Packaging.

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