Page 231 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

Chrome Moly Pushrods
Crane’s pushrods are made from air craft-grade seam less 4130 chrome moly steel tub ing, with or without heat treating, with tensile strength ratings up to
128,000 lbs. Sold in sets of 16, or available separately. Replace the -16 with a -1 for an individual pushrod.
Part No. Description Diameter Length
CRN10621-16 1988-99 Chevy V8 305-350 With Factory Roller Lifters 5/16" 7.178"
CRN11621-16* 1955-87 Chevy V8 262-400 Heat Treated 5/16" 7.765" (Stock Length)
CRN11622-16* 1955-87 Chevy V8 262-400 Heat Treated 5/16" 7.865" (+.100")
CRN11624-16* 1955-87 Chevy V8 262-400 Heat Treated 5/16" 7.925" (+.160")
CRN11628-16* 1955-87 Chevy V8 262-400 With Crane Hyd. Roller, Heat Treated 5/16" 7.046" (-.719")
CRN11630-16* 1955-87 Chevy V8 262-400 Heavy Wall (.062"), Heat Treated 5/16" 7.765" (Stock Length)
CRN13628-16 1965-90 Chevy V8 396-454 Heavy Wall (.062"), With Crane Hyd. Roller 3/8" 7.531"/8.531"
CRN13630-16* 1965-90 Chevy V8 396-454 Heat Treated 7/16" 8.250" Int./9.250" Exh.
CRN13642-16 1965-90 Chevy V8 396-454 Pro Series, Heavy Wall (.080"), Heat Treated 3/8" 7.560"/8.550"
CRN144621-16 1997-10 GM 5.7L LS1/LS2/LS6 5/16" 7.400"
CRN36621-16* 1963-68 Ford V8 221-302, Heat Treated 5/16" 6.812" (Stock Length)
CRN36625-16* 1986-96 Ford V8 302/302 H.O. w/Crane Alum. Rock. And OEM Hyd. Roller 5/16" 6.375" (+.117")
CRN34641-16* 1958-76 Ford V8 332-428 “FE” With Roller Lifters, Heat Treated 3/8" 9.125" (-.109")
CRN69621-16 1964-91 Plym./Dodge/Chrysler 273-360 (Hyd. Lifters, Adj. Rockers) 5/16" 7.185"
CRN64641-16 1958-78 Plym./Dodge/Chrysler 413-440 (Hyd. Lifters, Adj. Rockers) 3/8" 8.930"
CRN64622-16* 1958-78 Plym./Dodge/Chrysler 413-440 (Mech. Lifters, Adj. Rockers) 3/8" 9.250" (Stock Length)
CRN64629-16* 1958-78 Plym./Dodge/Chrysler 413-440 (Mech. Lifters And Adj. Rockers) 3/8" 8.375" (-.750")
CRN28624-16* 1957-81 Pontiac V8 265-455, Heat Treated 5/16" 9.125" (Stock Length)
*Heat-treated pushrods allow compatibility with guide plates.

Adjustable Checking Pushrods Rocker Arm Studs
Made from heat-treated, high-quality alloy
Special pushrod length checkers are adjustable with over 1.000" of travel. steel, studs have specially machined threads
Determine correct pushrod length, while maintaining proper valve train and shoulder area to provide firm, positive
geometry. Sold in pairs. rocker arm support.
Part No. Description Top Stud Bottom Stud Dimensions
7.500"-8.700" Length, 5/16" Dia., AMC V8, SB Chevy 265-400, Chrysler “B” Part No. Dia. & Thread Dia. & Thread “A” “B” “C” “D”
CRN99726-2 Standard Rocker Arm Studs
350-400, Ford 351C/Boss, BB Ford 429-460, SB Olds 260-403
CRN99730-2 7.500"-8.700" And 8.500"-9.800" Length, 5/16" Dia., BB Chevy 396-454 CRN99152-16 ‡ 7/16"-20 3/8"-16 2.650" .750" 1.900" 1.000"
Note: Pushrod length checkers are NOT designed to be run in any engine and should only be CRN99156-16 3/8"-24 7/16"-14 2.396" .716" 1.680" .806"
used as a tool to determine proper pushrod length. CRN99157-16 7/16"-20 7/16"-14 2.560" .800" 1.760" .860"
CRN99159-16 7/16"-20 7/16"-14 2.670" .740" 1.930" 1.060"
‡Conversion stud for Chevy Mark V and VI, use factory guideplates. Not recommended for
Steel Rocker Arm applications with 480lbs.+ open valve spring pressure.
Adjusting Nuts
Locknuts are available in traditional self-locking, Aluminum Rocker Arm Adjusting Nuts
and new patented Kool Nut, for use with stamped steel rocker arms. Kool Machined billet steel lock nuts for roller tip, needle bearing
Nut’s unique design directs a pressure-fed flow of oil to the pivot ball. Sold aluminum rocker arms include Allen-head set screws.
in sets of 16. Available for standard valve trains or valve trains fitted with
Part No. Description stud girdles.
Kool Nut, 3/8"-24,
CRN99768-16 Part No. Description Min. Rocker Slot Width Overall Ht.
Counterbored To Work With Bottleneck Studs
Kool Nut, 7/16"-20, Standard Adjusting Nuts
CRN99769-16 CRN99788-16 3/8"-24 Nuts .550" 1.063"
Counterbored To Work With Bottleneck Studs
CRN99770-16 Self Locking, 3/8"-24 CRN99790-16 7/16"-20 Nuts .550" .922"
CRN99771-16 Self Locking, 7/16"-20 CRN99792-16 7/16"-20 Nuts .600" .969"
CRN99772-16 Self Locking, 5/16"-24 Stud Girdle Adjusting Nuts
CRN99803-8 3/8"-24 Nuts .550" 2.013"
CRN99809-8** 7/16"-20 Nuts .600" 2.637"
Shaft-Type Rocker Arm CRN99810-8 7/16"-20 Nuts .600" 2.013"
Adjusting Screws **Commonly used on BB Chevy 396-454 intake.
Machined from billet steel and heat treated
for maximum strength. Sold in sets of 16.
Part No. Description
CRN99780-16 † Chrysler V8, “LA”, “B”/“RB”, And 426 Hemi, With Locknut, Severe Duty
CRN99802-16 Chrysler V8, “LA”, “B”/“RB”, And 426 Hemi, With Locknut
CRN99680-16 Ford V8 332-428 “FE”, With Locknut
†Requires special pushrods.

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