Oldsmobile

Description

HYDRAULIC CAMSHAFTS

Non Roller 1967-up 260 307 (5.0L) 350 (5.7L) 400 403 425 455 (39 bank angle)
Note: These cams use .000" intake and exhaust valve lash.

X-TREME MILEAGE CAMS AVAIL ABLE!

BAJA BEAST / PERFORMANCE LEVEL 2 - Low to mid-range torque for daily drivability. Economical price. RPM Power Range: 1500 to 4250 / Redline: 5500 plus.

260 56915 350

280H 112 289H 112 304H 112

280 289

204 214 .450" .474"

84057

POWER BEAST / PERFORMANCE LEVEL 3 - Delivers impressive mid350 56903 range and top end power. Healthy sound. Economical price. 425 RPM Power Range: 1750 to 4500 / Redline: 5750 plus. ULTRA BEAST / PERFORMANCE LEVEL 4 - Upper mid-range to top end power. Emphasis on top end. RPM Power Range: 2000 to 4800 / Redline: 6200 plus. MILEAGE COMPU-PRO / Performance Level 1 - These cams are designed to enhance throttle response and low-end torque in vans, trucks and passenger cars while delivering fuel efficient motoring. High vacuum and smooth idle are characteristic of these profiles. Stock or small cfm carburetor, small diameter tube headers, dual exhaust, and ignition rework are recommended for maximum benefit. RPM Power Range: Idle to 3500-3700 / Redline: 4500 plus. POWER COMPU-PRO / Performance Level 2 - These cams provide excellent low end and mid-range power and extended rpm range for spirited street and offroad driving. A perfect combination of mileage and power. Modifications should include small diameter tube headers, low restriction dual exhaust, aftermarket manifold, increased cfm carburetor and reworked or performance ignition. Increase in compression ratio to 9.5:1 is recommended for maximum output. Works well with automatic transmission or 4-speed. RPM Power Range: 1300-1500 to 4000-4200 / Redline: 5500 plus. 455 56919 cid

289 300

214 224 .474" .498"

84057

304 316

234 244 .520" .542"

84057

400 56258 250HDP 250 258 403 112 425 56260 260HDP 260 266 cid 112 260 56258 250HDP 250 258 cid 112 350 56260 260HDP 260 266 cid 112 400 56261 270HDP 270 276 425 112 455 56262 276HDP 276 281 cid 112

192 196 .429" .445"

84057

203 211 .448" .450"

84057

192 196 .429" .445" 203 211 .448" .450" 210 219 .451" .474" 215 221 .488" .494"

84057 84057 84057 84057

HIGH PERFORMANCE COMPU-PRO / Performance Level 3 - Intended for the performance oriented hot street application. These cams offer an extended rpm range with emphasis on upper bottom to top end power (strong mid-range). Performance gears, headers, dual exhaust, larger than stock cfm carburetor, performance manifold and increased compression (9.5:1 to 10.5:1) are required. Works well with automatic transmission if matched with proper ring and pinion gears and/or high stall converter. RPM Power Range: 1600-1800 to 4500-4800 / Redline: 6000 plus.

260 56261 270HDP 270 276 cid 112 350 56262 276HDP 276 281 cid 112 400 56263 280HDP 280 286 425 112 455 56264 284HDP 284 290 cid 112

210 219 .451" .474" 215 221 .488" .494" 220 227 .485" .496" 229 236 .520" .528"

84057 84057 84057 84057

ULTRA-PERFORMANCE COMPU-PRO / Performance Level 4 - The following grinds are best suited for dual purpose hot street/drag strip situations. These cams exhibit strong mid-range and top end torque and horsepower. Headers, dual exhaust, larger cfm carburetor, performance ignition and 11:1 compression are a must. Cylinder head modifications would be beneficial. Use with standard transmission or automatic with high stall converter. Low gearing a must. RPM Power Range: 2000-2200 to 6000-6200 / Redline: 6500

260 56263 280HDP 280 286 cid 112 350 56264 284HDP 284 290 cid 112 400 56265 297HDP 297 308 425 112 455 56266 311HDP 311 316 cid 112

220 227 .485" .496" 229 236 .520" .528" 237 240 .538" .533" 247 251 .546" .557"

84157 84157 84157 84157

Engineered Component Kit & Accessories refer to the following page for specs or contact CROWER for more Info.

124

For technical support call 619-661-6477 Some products listed are not legal for sale or use on emission controlled motor vehicles RPM ranges vary upon application www.crower.com

Non Roller 1967-up 260 307 (5.0L) 350 (5.7L) 400 403 425 455 (39 bank angle)
Note: These cams use .000" intake and exhaust valve lash.

HYDRAULIC CAMSHAFTS (continued)

Oldsmobile
Rec Kit

X-TREME MILEAGE CAMS AVAIL ABLE!

HI-DRAULIC HAULER / PERFORMANCE LEVEL 3 - Lope at idle. Hot street/strip cam with strong mid-range power RPM Power Range: 2500 to 6500 HI-DRAULIC HAULER / PERFORMANCE LEVEL 4 - Rough idle. Explosive mid-range power and torque. RPM Power Range: 3000 to 6500 HI-DRAULIC HAULER / PERFORMANCE LEVEL 4 - Rough idle. Violent mid-range acceleration. RPM Power Range: 3500 to 6500 CUSTOM GROUND HYDRAULIC - Special order hydraulic lifter camshaft ground to your specifications. Call our technical support staff for personalized camshaft assistance.

400 56270 284HDP 288 298 cid 108 400 56271 296HDP 296 304 cid 108 400 56272 304HDP 304 312 cid 108 All cid

228 238 .464"

.482" 84157

229 241 .505"

.532" 84157

244 249 .540"

.568" 84157

00001

Refer to page 7 for camshaft recommendation form

See Below

SOLID CAMSHAFTS
Description

Note: These cams use .022" intake, .024" exhaust valve lash.
Grind Advertised Duration Gross Lift C.I.D. Part Lobe Duration @ .050" 1.6 / 1.6 Group Number Center Intake Exhaust Intake Exhaust Intake Exhaust Rec Kit

COMPU-PRO / PERFORMANCE LEVEL 3 - High revving, super mid to top end power. RPM Power Range: 3000 to 7000 plus. COMPU-PRO / PERFORMANCE LEVEL 4 - Super torque with explosive mid-range power. RPM Power Range: 3500 to 7500 plus. COMPU-PRO / PERFORMANCE LEVEL 5 - Upper mid-range and top end profile for added power above 7000 rpm. RPM Power Range: 4000 to 8000 plus. CUSTOM GROUND SOLID - Special order solid lifter camshaft ground to your specifications. Call our technical support staff for personalized camshaft assistance. CUSTOM GROUND ROLLER - Special order roller lifter camshaft ground to your specifications. Call our technical support staff for personalized camshaft assistance.

400 56360 274FDP 274 278 455 110 400 56361 284FDP 284 290 455 108 400 56362 300FDP 300 308 455 108 All cid All cid

238 242 .526" 248 255 .552" 260 268 .584"

.539" 84357 .568" 84357 .601" 84357

00000 00003 or 00006

Refer to page 7 for camshaft recommendation form Refer to page 7 for camshaft recommendation form

84357 Call Crower

ENGINEERED COMPONENT KITS

Retainers Seals 87048-16 87048-16 86072-16 87048-16 86072-16

Spring pressure: 68305X1-16 Seat: 1.700" @ 68 lbs / Nose: 1.200" @ 250 lbs / Coil bind: 1.050" (Stock O.D., no machine work). 68405-16 Seat: 1.700" @ 110 lbs / Nose: 1.100" @ 338 lbs / Coil bind: 0.980" (Machine work, use cutter 68983*). * Machine work required, specify 1132 pilot shaft when ordering. Note: For lifts over .480" pushrods 70049-16 or 70050-16 are required. All solid lifter profiles require adjustable pushrods. Non-adjustable pushrods can be used if you have proper lifter preload (.050" off snap-ring). Custom length pushrods are available from Crower to achieve proper lifter preload. Customer must furnish accurate pushrod length. In order to assist in proper preload measurement, Crower offers an adjustable checking pushrod. Note: 1964-66 Oldsmobile blocks require 45 cam cores and cannot be interchanged with late model (39) cam cores. Early model 45 camshafts are available on a special order basis. Customer must furnish lifter bore diameter when ordering. Valve timing events are available online at: www.crower.com/valvtime.html

For severe duty applications, Crower offers a high-lube CamSaver lifter that channels more oil to the cam Remarks lobe and lifter surface. Specify X3 after corresponding Hydraulic Lifter. 6000 plus rpm. component kit. Hydraulic Lifter. 6500 rpm. For severe duty applications, Crower recommends using Solid Lifter. 7500 plus rpm. our solid lifter with the added "coolface oiling option". Specify X980 after corresponding component kit.

ACCESSORIES

Description Part No. Spring seat cutter See pg. 180 Pg's.146-149 Pushrods Timing gear set See pg. 138 Pg's.150-165 Rocker arms (1.6) 716

Note: If exceeding 7500 rpm, high pressure springs and titanium retainers may be required. See specs or contact Crower. Note: If using longer than stock valves you may require spring and retainer modifications. See specs or contact Crower. Note: If making valve train adjustable with rockers, screw-in studs and guide plates are required. Call Crower for details.

For technical support call 619-661-6477 Some products listed are not legal for sale or use on emission controlled motor vehicles RPM ranges vary upon application www.crower.com

125