Online-Support-btn

Home :: Holden :: Holden V8 252-308 1970-1988
Holden V8 252-308 1970-1988

1-Holden-V8-1970-1988-HFTC-HRC 66xxx1
cam recommendation_btnAll Howards™ Cams use the highest-grade race quality cores available. All hydraulic and mechanical flat tappet camshafts are 100% Rockwell checked and Parkerized to ensure the highest quality control standards available anywhere. Howards™ Cams are manufactured on dedicated high precision cam grinding machines. Most Howards™ Cams are packaged and shipped in our unique, hard, high impact plastic reusable cases. This ensures that the high quality camshaft that went into the case comes out in the same condition, when delivered, as when it was packed.




Cam Part No. Cam & Lifter Set Part No. Duration
IN
Advertised
EX
Duration
IN
@.050"
EX
Valve w/1.60
IN
Lift Rockers
EX
Lobe Separation Angle Intake Centerline Valve
IN
Lash
EX
Notes
660931-10 NA 267 267 213 213 .480 .480 110 106 Hyd. Hyd. 1
2000-4800  Smooth idle, Street Performance, Towing, fuel economy.     
661211-12 NA 269 275 215 221 .485 .475 112 108 Hyd. Hyd. 1
2000-5000  Strong low & mid-range torque & horsepower.      
660991-08 NA 275 275 221 221 .501 .501 108 104 Hyd. Hyd. 1
2200-5600  Mild idle, Good low & mid-range horsepower. 9.5:1 CR, good exhaust & intake.    
660651-10 NA 277 285 223 231 .496 .501 110 106 Hyd. Hyd. 1
2600-5700  Fair idle, Strong mid range & top end. 9.5-10.5:1, 2800+ stall & gears.    
660011-10 NA 279 279 225 225 .496 .496 110 106 Hyd. Hyd. 1
2600-5800  Fair idle, Nice single pattern cam. Hot Street/Strip performance.     
660961-10 NA 285 285 231 231 .501 .501 110 106 Hyd. Hyd. 1
2800-5800  Fair idle, Street/Strip, strong mid-range torque & horsepower.     
661751-08 NA 289 299 235 245 .520 .544 108 104 Hyd. Hyd. 1
2800-6000  Lopey idle, Serious Street/Strip. Needs 3200+ stall, header & gears.     
660971-10 NA 289 289 235 235 .501 .501 110 106 Hyd. Hyd. 1
3000-6100  Lopey idle, Hot Street/Strip, strong mid-range torque & horsepower. 3200+ stall.    
660841-10 NA 291 291 237 237 .520 .520 110 106 Hyd. Hyd. 1
3000-6400  Rough idle, Street/Strip, strong mid range & top end power. 3500+ stall, 10.0:1+ CR.   
661731-08 NA 291 297 237 243 .520 .541 108 104 Hyd. Hyd. 1
3000-6600  Rough idle, Hot Street/Strip. Good mid range & top end performance. 10.5:1+ CR.    
661811-08 NA 297 297 243 243 .541 .541 108 104 Hyd. Hyd. 1
3400-6700  Rough idle, Hot Street/Bracket, Nice upper mid range & top end.     
661951-08 NA 307 307 253 253 .565 .565 108 104 Hyd. Hyd. 1
3600-6800  Rough idle, Hot Street/Strip, great mid range to top end performance. 11.0:1+ CR, 3500+.   
669991 NA Custom Grind Camshaft
Hydraulic Flat Tappet Special Order Camshaft.       
Hyd. Hyd. 1

Camshaft Notes

1. Stock (O.E.) valve springs cannot be used.
2. Requires thrust button.
3. Cam and lifter sets with "DL" suffix feature Direct Lube™ lifters.
4. Ignition firing order must be changed to 1-8-7-3-6-5-4-2.
5. Requires upgraded distributor gear.
6. Requires 3-Bolt timing set.
7. Requires use of Retro-Fit Tie Bar Hydraulic Roller Lifters.
8. Includes 2 camshafts.
9. Includes 4 camshafts.
10. Ignition firing order must be changed to 1-3-7-2-6-5-4-8.
11. Ignition firing order must be changed to 1-8-7-2-6-5-4-3.
12. Requires custom programmer/tuning.
13. Requires adjustable valvetrain.
14. No specific vacuum rating is guaranteed.
15. Lobes designed to take maximum advantage of .904" dia. lifter.
16. Lobes designed to take maximum advantage of .875" dia. lifter. 

 


cam recommendation_btnHoward Cams, always synonymous with high performance camshafts and valve train innovation, our comments have been top fuel favorites since the early days of drag racing and the basic timing of Howards blown alcohol cams is still used today.

All Howards™ Cams use the highest-grade race quality billets available. All hydraulic and mechanical flat tappet camshafts are 100% Rockwell checked and Parkerized to ensure the highest quality control standards available anywhere. Howards™ Cams are manufactured on dedicated high precision cam grinding machines. All Howards™ Cams are packaged and shipped in our unique, hard, high impact plastic reusable cases. This ensures that the high quality camshaft that went into the case comes out in the same condition, when delivered, as when it was packed.




2-Holden-V8--1970-1988-MFTC-HRC 66xxx1
cam recommendation_btnAll Howards™ Cams use the highest-grade race quality cores available. All hydraulic and mechanical flat tappet camshafts are 100% Rockwell checked and Parkerized to ensure the highest quality control standards available anywhere. Howards™ Cams are manufactured on dedicated high precision cam grinding machines. Most Howards™ Cams are packaged and shipped in our unique, hard, high impact plastic reusable cases. This ensures that the high quality camshaft that went into the case comes out in the same condition, when delivered, as when it was packed.




Cam Part No. Cam & Lifter Set Part No. Duration
IN
Advertised
EX
Duration
IN
@.050"
EX
Valve w/1.60
IN
Lift Rockers
EX
Lobe Separation Angle Intake Centerline Valve
IN
Lash
EX
Notes
661442-10 NA 271 279 236 244 .512 .512 110 106 .022 .022 1
2600-5600  Mild lopey idle, Street Performance, broad mid range power band. 3200+ stall, 9.5:1 CR.   
660102-09 NA 275 281 240 246 .539 .549 109 105 .022 .022 1
2800-5800  Hot Street/Bracket. Needs 10.0+ CR, 3200+ stall & gears.     
662352-08 NA 281 287 246 252 .555 .565 108 104 .022 .022 1
3200-6100  Hot Street/Bracket, good mid-range performance.      
660822-06 NA 287 295 252 260 .581 .592 106 102 .022 .022 1
3400-6500  Rough idle, Pro Street/Strip. Great mid range torque & power. 10.0:1+ CR.    
660822-08 NA 287 295 252 260 .581 .592 108 104 .016 .016 1
3400-6600  Rough idle, Street/Strip, good mid range with strong top end performance. 10.0:1+ CR.   
661772-06 NA 295 301 260 266 .603 .592 106 102 .022 .022 1
3800-7000  Pro Street/Serious Competition. Great mid range to top end power.     
661772-08 NA 295 301 260 266 .603 .592 108 104 .022 .022 1
3800-7000  Pro Street/Competition. Good mid & upper end performance. 4000+ stall.    
669992 NA Custom Grind Camshaft
Mechanical Flat Tappet Special Order Camshaft.         
1

cam recommendation_btnHoward Cams, always synonymous with high performance camshafts and valve train innovation, our comments have been top fuel favorites since the early days of drag racing and the basic timing of Howards blown alcohol cams is still used today.

All Howards™ Cams use the highest-grade race quality billets available. All hydraulic and mechanical flat tappet camshafts are 100% Rockwell checked and Parkerized to ensure the highest quality control standards available anywhere. Howards™ Cams are manufactured on dedicated high precision cam grinding machines. All Howards™ Cams are packaged and shipped in our unique, hard, high impact plastic reusable cases. This ensures that the high quality camshaft that went into the case comes out in the same condition, when delivered, as when it was packed.



Home :: Holden :: Holden V8 252-308 1970-1988


hrc logo


hrc logo_2

custom cam_logo
Copyright © 2013.
All Rights Reserved.




Upcoming Events
 
Join us!

SEMA 2013
Las Vegas Convention Center
Las Vegas, Nevada
November 5 - 8, 2013

PRI
Indiana Convention Center
Indianapolis IN
December 12 - 14,  2013





Featured Products
    • Max Certified Hydraulic Flat Tappet Cam & Lifter Sets w/ 5yr Warranty
    • HRC Extreme Billet Main Caps
    • Professional 2-Sided 14" Degree Wheels
    • Ultra Lite Billet Composite Fuel Pump Pushrods
    • Max Z.P.M™ Camshaft Break-In Lube & Oil Change Additive
    • "The Original" Direct Lube™ Extreme Duty Lifters 
    • Precision Dense Forged Connecting Rods
    • Tool Steel Mechanical Lifters
    • ProMax™ Stud Girdle Kits
    • Track Smart™ Nitro-Carbided Rocker Arms
    • Howards™ Billet Aluminum Rockers



Contact Us 
280 W. 35th Ave.
Oshkosh, WI 54902
T: (920)2335228
F: (920)2321572
Email: info@howardscams.com
Hours: M-F 8:00 - 5:00 CST

Social Media