Page 220 - 2018 Racecar Engineering Drag Racing Parts and Accessories Catalog

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 Lifter Basic Recommended Lobe
Application Part No. Part No. RPM Comp. Ratio Int. Exh. Int. Exh. Sep. Int. Exh. Int. Exh.
Hydraulic Camshafts For Drag Racing
Good Low/Mid Range Torque
And HP, 8.75-10.0:1 Comp. Ratio, CRN100172 B CRN99277-16 1800-5400 8.75-10.0:1 218° 218° 274° 274° 106° .000" .000" .450" .450"
2500+ Converter
Good Mid Range Torque And HP,
9.5-10.75:1 Comp. Ratio, CRN100132 B CRN99277-16 2000-5800 9.5-10.75:1 222° 222° 278° 278° 110° .000" .000" .467" .467"
2500+ Converter
Good Mid/Upper Range Torque CRN10008
And HP, 9.5-11.1: Comp Ratio CRN100082 B CRN99277-16 2400-6200 9.5-11.0:1 226° 226° 282° 282° 106° .000" .000" .470" .470"
3000+ Converter
Good Mid/Upper Range Torque
And HP, 9.5-11.0:1 Comp. Ratio CRN100072 B CRN99277-16 2800-6200 9.5-11.0:1 228° 228° 284° 284° 112° .000" .000" .480" .480"
3000+ Converter
Good Mid Range Torque And HP,
10.0-11.5:1 Comp. Ratio, CRN110591 CRN99277-16 2800-6400 10.0-11.5:1 228° 234° 284° 290° 106° .000" .000" .480" .494"
3000+ Converter
Good Upper Range Torque And
HP, 10.5-12.0:1 Comp. Ratio, CRN10011 B CRN99277-16 3400-7000 10.5-12.0:1 246° 246° 302° 302° 106° .000" .000" .500" .500"
3500+ Converter CRN100112
Mechanical Camshafts For Drag Racing
Good Mid Range Torque And HP,
10.5-12.0:1 Comp. Ratio, CRN110921 B CRN99250-16 3200-6800 10.5-12.0:1 244° 252° 280° 288° 106° .026" .026" .518" .536"
3000+ Converter CRN110922
Good Mid Range Torque And HP,
11.5-12.5:1 Comp. Ratio, CRN110981 CRN99250-16 3800-7200 11.5-12.5:1 252° 260° 288° 296° 106° .026" .026" .536" .554"
Race Converter
Roller Camshafts For Drag Racing
Good Mid/Upper Range Torque
And HP, 11.5:1 Comp. Ratio CRN118831 C CRN11570-16 4200-8000 11.5:1 Min. 260° 264° 292° 296° 106° .020" .020" .630" .630"
Race Converter
BB Chevy V8
1967-95 396, 402, 427, 454, 502, Rodeck 481 Aluminum
Duration @ .050" Adv. Dur. Valve Lash Gross Lift
Cam Lifter Basic Recommended Lobe
Application Part No. Part No. RPM Comp. Ratio Int. Exh. Int. Exh. Sep. Int. Exh. Int. Exh.
Hydraulic Camshafts For Drag Racing
Good Mid Range Torque And HP,
9.5-10.75:1 Comp. Ratio, CRN133801 CRN99277-16 2000-5800 9.5-10.75:1 222° 234° 278° 290° 114° .000" .000" .529" .525"
2500+ Converter
Good Mid/Upper Range Torque
And HP, 9.5-11.0:1 Comp. Ratio, CRN103072 B CRN99277-16 2200-5600 9.5-11.0:1 226° 226° 282° 282° 108° .000" .000" .533" .533"
2500+ Converter
Good Mid/Upper Range Torque
And HP, 9.5-11.0:1 Comp. Ratio, CRN103062 B CRN99277-16 2800-6200 9.5-11.0:1 228° 228° 284° 284° 112° .000" .000" .544" .544"
2500+ Converter
Good Mid Range Torque And HP,
10.0-11.5:1 Comp. Ratio, 3000+ CRN134561 CRN99277-16 3000-6800 10.0-11.5:1 236° 246° 296° 306° 114° .000" .000" .553" .571"
Converter
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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