Page 227 - 2018 Racecar Engineering Drag Racing Parts and Accessories Catalog

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)
CRN11632-16 1955-87 Chevy V8 262-400 Heavy Wall (.062") 5/16" 7.865" (+.100")
CRN11633-16* 1955-87 Chevy V8 262-400 Heavy Wall (.062"), Heat Treated 5/16" 7.965" (+.200)
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.
CRN13634-16* 1965-90 Chevy V8 396-454 Heavy Wall (.062"), Heat Treated 3/8" 8.250" Int./9.250" Exh.
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)
CRN36622-16* 1969-95 Ford V8 255-302, Heat Treated 5/16" 6.875" (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 compatability with guide plates.
Adjustable Checking Pushrods
Rocker Arm Studs
Special pushrod length checkers are adjustable with over Made from heat-treated, high qual-
1.000" of travel. Determine correct pushrod length, while main- ity alloy steel, studs have specially
taining proper valve train geometry. Sold in pairs. machined threads and shoulder area
to provide firm, positive rocker arm
Part No. Description
7.500"-8.700" Length, 5/16" Dia., AMC V8, support.
CRN99726-2 SB Chevy 265-400, Chrysler “B” 350-400, Ford 351C/Boss, BB Top Stud Bottom Stud Dimensions
Ford 429-460, SB Olds 260-403 Part No. Dia. & Thread Dia. & Thread “A” “B” “C” “D”
7.500"-8.700" And 8.500"-9.800" Length, 5/16" Dia.,
CRN99730-2 Standard Rocker Arm Studs
BB Chevy 396-454
Note: Pushrod length checkers are NOT designed to be run in any engine CRN99152-16* 7/16"-20 3/8"-16 2.650" .750" 1.900" 1.000"
and should only be used as a tool to determine proper pushrod length. CRN99156-16 3/8"-24 7/16"-14 2.396" .716" 1.680" .806"
CRN99157-16 7/16"-20 7/16"-14 2.560" .800" 1.760" .860"
Steel Rocker Arm CRN99159-16 7/16"-20 7/16"-14 2.670" .740" 1.930" 1.060"
Adjusting Nuts * Conversion stud for Chevy Mark V and VI, use factory guideplates. Not
recommended for applications with 480lbs.+ open valve spring pressure.
Locknuts, are available in traditional
self-locking, and new patented Kool Nut, Aluminum
for use with stamped steel rocker arms.
Kool Nut’s unique design directs a pressure-fed flow of oil to the Rocker Arm Adjusting Nuts
pivot ball. Sold in sets of 16. Machined billet steel lock nuts for roller tip, needle
bearing aluminum rocker arms include Allen-head
Part No. Description
set screws. Available for standard valve trains or
Kool Nut, 3/8"-24,
CRN99768-16
Counterbored To Work With Bottleneck Studs valve trains fitted with stud girdles.
Kool Nut, 7/16"-20, Part No. Description Min. Rocker Slot Width Overall Ht.
CRN99769-16
Counterbored To Work With Bottleneck Studs Standard Adjusting Nuts
CRN99770-16 Self Locking, 3/8"-24 CRN99788-16 3/8"-24 Nuts .550" 1.063"
CRN99771-16 Self Locking, 7/16"-20 CRN99790-16 7/16"-20 Nuts .550" .922"
CRN99772-16 Self Locking, 5/16"-24 CRN99792-16 7/16"-20 Nuts .600" .969"
Stud Girdle Adjusting Nuts
Shaft Type Rocker Arm CRN99803-8 3/8"-24 Nuts .550" 2.013"
Adjusting Screws CRN99809-8** 7/16"-20 Nuts .600" 2.637"
Machined from billet steel and heat CRN99810-8 7/16"-20 Nuts .600" 2.013"
treated for maximum strength. Sold in ** Commonly used on BB Chevy 396-454 intake.
sets of 16.
Part No. Description
Chrysler V8, “LA”, “B”/“RB”, And 426 Hemi, With Locknut, Severe
CRN99780-16*
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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