Drag Race Camshafts SB Chevy V8 1957-87 262, 267 (4.4 L), 283, 302, 305 (5.0 L), 307, 327, 350 (5.7 L), 400
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.
Hydraulic Camshafts For Drag Racing Good Low/Mid Range Torque And HP, 8.75-10.0:1 Comp. Ratio, 2500+ Converter CRN100172 B
CRN99277-16 1800-5400 8.75-10.0:1 218° 218° 274° 274° 106° .000" .000" .450" .450"
Good Mid Range Torque And HP, 9.5-10.75:1 Comp. Ratio, 2500+ Converter Good Mid/Upper Range Torque And HP, 9.5-11.1: Comp Ratio 3000+ Converter Good Mid/Upper Range Torque And HP, 9.5-11.0:1 Comp. Ratio 3000+ Converter Good Mid Range Torque And HP, 10.0-11.5:1 Comp. Ratio, 3000+ Converter Good Upper Range Torque And HP, 10.5-12.0:1 Comp. Ratio, 3500+ Converter
CRN100132 B
CRN99277-16 2000-5800 9.5-10.75:1 222° 222° 278° 278° 110° .000" .000" .467" .467"
CRN10008 CRN100082 B
CRN99277-16 2400-6200 9.5-11.0:1 226° 226° 282° 282° 106° .000" .000" .470" .470"
CRN100072 B
CRN99277-16 2800-6200 9.5-11.0:1 228° 228° 284° 284° 112° .000" .000" .480" .480"
CRN110591 CRN99277-16 2800-6400 10.0-11.5:1 228° 234° 284° 290° 106° .000" .000" .480" .494"
CRN10011 CRN100112 B
CRN99277-16 3400-7000 10.5-12.0:1 246° 246° 302° 302° 106° .000" .000" .500" .500"
Mechanical Camshafts For Drag Racing Good Mid Range Torque And HP, 10.5-12.0:1 Comp. Ratio, 3000+ Converter CRN110921 CRN110922 B
CRN99250-16 3200-6800 10.5-12.0:1 244° 252° 280° 288° 106° .026" .026" .518" .536"
Good Mid Range Torque And HP, 11.5-12.5:1 Comp. Ratio, Race Converter
CRN110981 CRN99250-16 3800-7200 11.5-12.5:1 252° 260° 288° 296° 106° .026" .026" .536" .554"
Roller Camshafts For Drag Racing Good Mid/Upper Range Torque And HP, 11.5:1 Comp. Ratio Race Converter CRN118831 C
CRN11570-16 4200-8000 11.5:1 Min.
260° 264° 292° 296° 106° .020" .020" .630" .630"
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.
Hydraulic Camshafts For Drag Racing Good Mid Range Torque And HP, 9.5-10.75:1 Comp. Ratio, 2500+ Converter
CRN133801 CRN99277-16 2000-5800 9.5-10.75:1
222° 234° 278° 290° 114° .000" .000" .529" .525"
Good Mid/Upper Range Torque And HP, 9.5-11.0:1 Comp. Ratio, 2500+ Converter Good Mid/Upper Range Torque And HP, 9.5-11.0:1 Comp. Ratio, 2500+ Converter Good Mid Range Torque And HP, 10.0-11.5:1 Comp. Ratio, 3000+ Converter
CRN99277-16 2200-5600 9.5-11.0:1 226° 226° 282° 282° 108° .000" .000" .533" .533"
CRN103072 B
CRN103062 B
CRN99277-16 2800-6200 9.5-11.0:1 228° 228° 284° 284° 112° .000" .000" .544" .544"
CRN134561 CRN99277-16 3000-6800 10.0-11.5:1 236° 246° 296° 306° 114° .000" .000" .553" .571"
B: Cam and lifter kit, includes assembly lubricant. C: Requires cam button spacer and a .489" I.D. (CRN11990-1) or .500" I.D. (CRN11989-1) aluminum-bronze distributor gear. For engines equipped with a mechanical fuel pump, (CRN11985-1) pushrod is highly recommended to prevent fuel pump lobe wear. SB CHEVY NOTES: When using 1955-56 265 C.I. blocks, late model cam bearings must be installed. 1988-99 Chevy 305 and 350 C.I. engines (and some 1987 350 C.I. engines) use a different configuration cam core than the 1957-87 engines and can’t interchange. BB CHEVY NOTES: Use cams and components in 1991-95 Gen. V engines only if lifter preload is checked, or they have been converted to adjustable rocker arms. For 1965- 66 big block Chevy 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 in 1973 thru 1981 454 C.I. engines, exhaust valve rotators must be eliminated and spring spacers (CRN99459-8) or valve spring retainers (CRN99948-2) must be substituted 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.
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