Page 227 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

Drag Race Camshafts
BB Chevy V8
1967-95 396, 402, 427, 454, 502, Rodeck 481 Aluminum
Cam Lifter Basic Recommended Duration @ .050" Adv. Dur. Lobe Valve Lash Gross Lift
Application Part No. Part No. RPM Comp. Ratio Int. Exh. Int. Exh. Sep. Int. Exh. Int. Exh.
Roller Camshafts For Drag Racing
Good Low/Mid-Range Torque And HP,
11.0-12.5:1 Comp. Ratio, CRN138101 1 CRN13570-16 4 3600-7200 11.0-12.5:1 254° 262° 286° 294° 112° .020" .020" .714" .714"
3500+ Converter
Good Mid-Range Torque And HP,
11.5:1 Minimum Comp. Ratio, — CRN13570-16 4 4200-7600 11.5:1 Min. 262° 270° 294° 302° 114° .020" .020" .714" .714"
4000+ Converter
Good Mid/Upper-
Range Torque And HP, 1
12.5:1 Min. Comp. Ratio CRN138291 CRN13570-16 4 4600-8000 12.5:1 Min. 274° 284° 314° 324° 110° .026" .026" .737" .726"
Race Converter
500+ Cu. In. Bracket Racing,12.5:1 4
Comp. Ratio, CRN138351 CRN13570-16 7 4600-8200 12.5:1 Min. 274° 284° 314° 324° 114° .026" .026" .737" .726"
Race Converter CRN13574-16
Ford-Mercury V8
1962-87 221-255-260-289-302 (5.0L) (Except 1982-95 302 (5.0L) HO)

Cam Lifter Basic Recommended Duration @ .050" Adv. Dur. Lobe Valve Lash Gross Lift
Application Part No. Part No. RPM Comp. Ratio Int. Exh. Int. Exh. Sep. Int. Exh. Int. Exh.
Mechanical Camshafts For Drag Racing
Good Mid/Upper-Range Torque And
HP, 11.0-12.5:1 Comp. Ratio, — CRN99257-16 3200-7000 11.0-12.5:1 244° 252° 280° 288° 108° .026" .026" .553" .572"
Race Converter
1: Requires cam button spacer. Cam has an integral cast iron distributor drive gear. For 4: Ultra Pro Series vertical locking bar roller lifters.
engines with mechanical fuel pumps, fuel pump pushrod CRN11985-1 is recommended to 7: Ultra Pro Series vertical locking bar roller lifters for .904" dia. lifter bores.
prevent fuel pump lobe wear.
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 Valvetrain Organizer Tray
CRN99168-1 CRN99015-1
Prevents cam timing sprock et bolts from Lightweight tray accepts rock ers,
coming loose. Fits 90° V6 Chevy, SB and BB pushrods, adjusting nuts, lifters, and
Chevy 1957-95. spark plugs. Keeps valvetrain parts in the
cor rect order for proper replacement in
Vacuum Reserve System the en gine.
CRN99590-1
Radical cams reduce vacuum, causing power brake Camshaft Buttons And Thrust Bearings
problems on street/strip cars. Compact 5" x 7" Prevents roller cam shaft “walk ing” dur ing en gine op er a tion.
canister’s one-way check valve stores vacuum until Unique ly designed roll er bear ing reduces bind ing at the cam
it’s needed. Complete with fittings. nose, elim i nat ing horse pow er rob bing friction. Alu mi num
buttons are also available.
Aluminum Roller
De scrip tion Part No. Part No.
Chevrolet V8 262 thru 400, 90° V6 — CRN99164-1
Chevrolet V8 396 thru 454 CRN99005-1 CRN99165-1
Chrysler V8 “B” And 426 Hemi With 3-Bolt Gear CRN99163-1 —

Ken “Chrome Bolts” Firlik

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