Drag Race Camshafts BB Chevy V8 1967-95 396, 402, 427, 454, 502, Rodeck 481 Aluminum
Duration @ .050" Adv. Dur.
Valve Lash Gross Lift
Cam Part No.
Lifter Part No.
Basic RPM
Recommended Comp. Ratio
Lobe Sep.
Application
Int.
Exh.
Int.
Exh.
Int.
Exh.
Int.
Exh.
Roller Camshafts For Drag Racing Good Low/Mid Range Torque And HP, 11.0-12.5:1 Comp. Ratio, 3500+ Converter CRN138101 1
CRN13570-16 4
3600-7200 11.0-12.5:1 254° 262° 286° 294° 112° .020" .020" .714" .714"
Good Mid Range Torque And HP, 11.5:1 Minimum Comp. Ratio, 4000+ Converter Good Mid/Upper Range Torque And HP, 12.5:1 Min. Comp. Ratio Race Converter 500+ Cu. In. Bracket Racing,12.5:1 Comp. Ratio, Race Converter
CRN138131 1
CRN13570-16 4
4200-7600 11.5:1 Min.
262° 270° 294° 302° 114° .020" .020" .714" .714"
4600-8000 12.5:1 Min.
274° 284° 314° 324° 110° .026" .026" .737" .726"
CRN138291 1
CRN13570-16 4
CRN138351 CRN13570-16 4 CRN13574-16 7
4600-8200 12.5:1 Min.
274° 284° 314° 324° 114° .026" .026" .737" .726"
Ford-Mercury V8 1962-87 221-255-260-289-302 (5.0L) (Except 1982-95 302 (5.0L) HO)
Duration @ .050" Adv. Dur.
Valve Lash Gross Lift
Cam Part No.
Lifter Part No.
Basic RPM
Recommended Comp. Ratio
Lobe Sep.
Application
Int.
Exh.
Int.
Exh.
Int.
Exh.
Int.
Exh.
Mechanical Camshafts For Drag Racing Good Mid/Upper Range Torque And HP, 11.0-12.5:1 Comp. Ratio, Race Converter
CRN364681 CRN99257-16 3200-7000 11.0-12.5:1 244° 252° 280° 288° 108° .026" .026" .553" .572"
1: Requires cam button spacer. Cam has an integral cast iron distributor drive gear. For engines with mechanical fuel pumps, fuel pump pushrod CRN11985-1 is recommended to prevent fuel pump lobe wear.
4: Ultra Pro Series vertical locking bar roller lifters. 7: Ultra Pro Series vertical locking bar roller lifters for .904" dia. lifter bores.
BB CHEVY NOTES: 1991-95 Gen. V engines can use these camshafts and components if the lifter preload is checked, or they are converted to adjustable rocker arms. Machine the cylinder heads for screw-in 7/16" studs CRN99157-16 and pushrod guideplates CRN13650-1 and install appropriate rocker arms. For 1965- 66 engines, a groove 3/16" wide and 7/64" deep must be machined in the center of the rear cam bearing journal. When using dual valve springs on engines where exhaust valve rotators have been eliminated, spring spacers CRN99459-8 or four valve spring retainers CRN99948-2 must be used on the exhaust side only to prevent excessive valve spring shimming. These listings are just a sampling of the many popular Crane Cams we have in stock.
Cam Lock Plate And Bolt Kit CRN99168-1 Prevents cam timing sprocket bolts from coming loose. Fits 90° V6 Chevy, SB and BB Chevy 1957-95. Vacuum Reserve System CRN99590-1 Radical cams reduce vacuum, causing power brake problems on street/strip cars. Compact 5" x 7" canister’s one-way check valve stores vacuum until it’s needed. Com- plete with fittings.
Valvetrain Organizer Tray CRN99015-1 Lightweight tray accepts rockers, pushrods, adjusting nuts, lifters, and spark plugs. Keeps valvetrain parts in the correct order for proper replace- ment in the engine. Camshaft Buttons And Thrust Bearings
Prevents roller camshaft “walking” during en- gine operation. Uniquely designed roller bearing reduces binding at the cam nose, eliminating horsepower robbing friction. Aluminum buttons are also available.
Aluminum Part No.
Roller Part No.
Description
Chevrolet V8 262 thru 400, 90° V6 Chevrolet V8 396 thru 454
CRN99001-1 CRN99164-1 CRN99005-1 CRN99165-1
Chrysler V8 “B” And 426 Hemi With 3-Bolt Gear
CRN99163-1
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