Accelerated Motion logo and Canadian Maple Leaf

Oldsmobile V8
1965-85

Cam and Lifter Kits

  • 260   1975-82
  • 307   1980-90
  • 350   1968-80
  • 400   1968-69   Toronado camshaft only; .921 lifters are not available
  • 400   1968-69   Except Toronado
  • 403   1977-79
  • 455   1968-76
www.amotion.com/olds.html

Parts Selection Guide

The Accelerated Motion Parts Selection Guide uses 8 typical performance levels from mild to wild. Choose your performance level based on your driving habits, normal rpm range, or the horsepower that you require. If you aren't sure which range to use, be conservative. If you choose too high an rpm range it will rarely be used and you will be disappointed but an rpm range that is lower than you need will still be used. Each performance level suggests the range of camshaft, carb size, compression ratio, header size, ignition, and gear ratios that will work together the best for that performance level.

Camshaft and Lifter Kits

Precision made camshafts are fully computer analyzed before packaging and come with a lifetime guarantee agains manufaturing defects. If you don't see the camshaft you need in the wide selection of Accelerated Motion camshafts it can probably be custom made for you. These features make Accelerated Motion Cam and Lifter Kits one of the best values available anywhere.

Top of Page | Parts Combination Guide | Camshaft and Lifter Kits
www.amotion.com | Catalogue | Cam Checking | Tech Pages


Accelerated Motion
Performance Products

Burnaby, B.C. Canada

Request price and availability: cams@amotion.com

Parts Combination Guide

Parts that do not match stock specs are intended only for vehicles that do not require pollution controls.

    Torque and City  (idle to 3600 rpm, max. HP @ 4600 rpm)
Good fuel economy, light to medium towing and improved low-end for
city use.  Recalibrate stock carb.  No other internal engine 
modifications required.
Engine:        Cam Range*
260            up to 19547
307            up to 19630
350 w/1.88     up to 19787
350 w/2.00     up to 19667
400 w/2.00     up to 20000
400 w/2.07     up to 19930
403            up to 20020
455 w/2.00     up to 20367
455 w/2.07     up to 20297
              *The cam range refers to the 2nd half of
               the Accelerated Motion part number.
Compression:   Gasoline 9.0:1 or less, Propane 10.5:1 or less
Exhaust:       Stock or dual exhaust
Gear Ratio:    3.7:1 and lower (numerically)
Idle:          800 rpm or less
Ignition:      Recurved distributor and electronic ignition



    RV and Commuter  (1000 rpm to 4000 rpm, max. HP @ 5000 rpm)
Good fuel economy, medium towing and improved mid-range performance
for every day use.  No internal engine modifications are required.
Engine:        Cam Range*        Air/Fuel Range:     Horsepower:
260            19547 to 20347     383 to 478 cfm     Max. 208 HP
307            19630 to 20430     452 to 565 cfm     Max. 246 HP
350 w/1.88     19787 to 20587     515 to 644 cfm     Max. 280 HP
350 w/2.00     19667 to 20467     515 to 644 cfm     Max. 280 HP
400 w/2.00     20000 to 20800     589 to 736 cfm     Max. 320 HP
400 w/2.07     19930 to 20730     589 to 736 cfm     Max. 320 HP
403            20020 to 20820     593 to 742 cfm     Max. 322 HP
455 w/2.00     20367 to 21167     670 to 837 cfm     Max. 364 HP
455 w/2.07     20297 to 21097     670 to 837 cfm     Max. 364 HP
              *The cam range refers to the 2nd half of
               the Accelerated Motion part number.
Compression:   Gasoline 9.5:1 or less, Propane 11.0:1 or less
Exhaust:       Stock, dual exhaust, or small tube headers
Gear Ratio:    3.9:1 or lower (numerically)
Idle:          850 rpm or less
Ignition:      Recurved distributor and electronic ignition



    Mild Performance  (1400 rpm to 4400 rpm, max. HP @ 5400 rpm)
Fair idle, moderate fuel economy, improved mid-range performance
and enough torque for medium/heavy towing.  4 barrel carb recommended.
Engine:        Cam Range*        Air/Fuel Range:     Horsepower:
260            20347 to 21147     430 to 533 cfm     Max. 234 HP
307            20430 to 21230     508 to 629 cfm     Max. 276 HP
350 w/1.88     20587 to 21387     579 to 717 cfm     Max. 315 HP
350 w/2.00     20467 to 21267     579 to 717 cfm     Max. 315 HP
400 w/2.00     20800 to 21600     662 to 819 cfm     Max. 360 HP
400 w/2.07     20730 to 21530     662 to 819 cfm     Max. 360 HP
403            20820 to 21620     667 to 825 cfm     Max. 363 HP
455 w/2.00     21167 to 21967     753 to 932 cfm     Max. 410 HP
455 w/2.07     21097 to 21897     753 to 932 cfm     Max. 410 HP
              *The cam range refers to the 2nd half of
               the Accelerated Motion part number.
Compression:   Gasoline 8.5:1 to 10.0:1, Propane 10.0:1 to 11.5:1
Exhaust:       Stock dual exhaust or small tube headers
Gear Ratio:    3.1:1 to 4.1:1
Idle:          900 rpm or less, slight lope
Ignition:      Recurved distributor and electronic ignition



    Performance  (1800 rpm to 4800 rpm, max. HP @ 5800 rpm)
Good upper mid-range performance for street machines.  Also works
well for medium and heavy towing.  A 4 barrel carb is required.
Engine:        Cam Range*        Air/Fuel Range:     Horsepower:
260            21147 to 21947     480 to 587 cfm     Max. 260 HP
307            21230 to 22030     566 to 693 cfm     Max. 307 HP
350 w/1.88     21387 to 22187     646 to 791 cfm     Max. 350 HP
350 w/2.00     21267 to 22067     646 to 791 cfm     Max. 350 HP
400 w/2.00     21600 to 22400     738 to 903 cfm     Max. 400 HP
400 w/2.07     21530 to 22330     738 to 903 cfm     Max. 400 HP
403            21620 to 22420     744 to 910 cfm     Max. 403 HP
455 w/2.00     21967 to 22767     840 to 1028 cfm    Max. 455 HP
455 w/2.07     21897 to 22697     840 to 1028 cfm    Max. 455 HP
              *The cam range refers to the 2nd half of
               the Accelerated Motion part number.
Compression:   Gasoline 9.0:1 to 10.5:1, Propane 10.5:1 to 12.0:1
Exhaust:       Dual 2.25, headers are recommended
Gear Ratio:    3.3:1 to 4.3:1
Idle:          950 rpm or less, small lope
Ignition:      Recurved or perf. distributor, electronic ignition



    Hot Performance  (2200 rpm to 5200 rpm, max. HP @ 6200 rpm)
Strong upper rpm performance.  Not for towing.
Multi-angle valve grind is recommended.
Engine:        Cam Range*        Air/Fuel Range:     Horsepower:
260            21947 to 22747     531 to 642 cfm     Max. 286 HP
307            22030 to 22830     626 to 758 cfm     Max. 338 HP
350 w/1.88     22187 to 22987     714 to 864 cfm     Max. 385 HP
350 w/2.00     22067 to 22867     714 to 864 cfm     Max. 385 HP
400 w/2.00     22400 to 23200     816 to 988 cfm     Max. 440 HP
400 w/2.07     22330 to 23130     816 to 988 cfm     Max. 440 HP
403            22420 to 23220     822 to 995 cfm     Max. 443 HP
455 w/2.00     22767 to 23567     928 to 1124 cfm    Max. 501 HP
455 w/2.07     22697 to 23497     928 to 1124 cfm    Max. 501 HP
              *The cam range refers to the 2nd half of
               the Accelerated Motion part number.
Compression:   Gasoline 9.5:1 to 11.0:1, Propane 11.0:1 to 12.5:1
Exhaust:       Dual exhaust with headers
Gear Ratio:    3.5:1 to 4.5:1
Idle:          1000 rpm or less, has a lope
Ignition:      Recurved or perf. distributor, electronic ignition



    Street/Strip  (2600 rpm to 5600 rpm, max. HP @ 6600 rpm)
Strong performance above 2500 rpm.  Expect low manifold vacuum.
Mild port work and multi-angle valve grind are recommended.
Automatic transmissions may require a high stall torque converter.
Engine:        Cam Range*        Air/Fuel Range:     Horsepower:
260            22747 to 23547     583 to 697 cfm     Max. 312 HP
307            22830 to 23630     688 to 823 cfm     Max. 368 HP
350 w/1.88     22987 to 23787     784 to 938 cfm     Max. 420 HP
350 w/2.00     22867 to 23667     784 to 938 cfm     Max. 420 HP
400 w/2.00     23200 to 24000     896 to 1072 cfm    Max. 480 HP
400 w/2.07     23130 to 23930     896 to 1072 cfm    Max. 480 HP
403            23220 to 24020     903 to 1080 cfm    Max. 484 HP
455 w/2.00     23567 to 24367    1019 to 1220 cfm    Max. 546 HP
455 w/2.07     23497 to 24297    1019 to 1220 cfm    Max. 546 HP
              *The cam range refers to the 2nd half of
               the Accelerated Motion part number.
Compression:   Gasoline 10.0:1 to 11.5:1, Propane 11.5:1 to 13:1
Exhaust:       Dual exhaust with headers
Gear Ratio:    3.7:1 to 4.7:1
Idle:          1100 or less, has a lope
Ignition:      Performance distributor and electronic ignition



    Pro Street and Race  (3000 rpm and up)
Super top-end performance.  Manifold vacuum might be too low for
power brakes and automatic transmission modulators.  Mild port work
and multi-angle valve grind are recommended.  NOT for daily driving.
Automatic transmissions will require a high stall torque converter.
Engine:        Cam Range*       Air/Fuel Range:      Horsepower:
260            23547 and up       636 cfm and up    312 HP and up
307            23630 and up       751 cfm and up    368 HP and up
350 w/1.88     23787 and up       856 cfm and up    420 HP and up
350 w/2.00     23667 and up       856 cfm and up    420 HP and up
400 w/2.00     24000 and up       978 cfm and up    480 HP and up
400 w/2.07     23930 and up       978 cfm and up    480 HP and up
403            24020 and up       985 cfm and up    484 HP and up
455 w/2.00     24367 and up      1113 cfm and up    546 HP and up
455 w/2.07     24297 and up      1113 cfm and up    546 HP and up
              *The cam range refers to the 2nd half of
               the Accelerated Motion part number.
Compression:   Gasoline 10.5:1 and up, Propane 12.0:1 and up
Exhaust:       Dual exhaust with headers
Gear Ratio:    3.9:1 and higher (numerically)
Idle:          1100 rpm or more, will be rough
Ignition:      Performance distributor and electronic ignition



    Which Cam Duration In The Range Will Work Best?
Cars (large):  Use short or medium duration, exhaust can be longer.
Cars (small):  Use long intake duration, exhaust can be longer.
Propane:       Use short or medium duration, exhaust can be shorter.
Trucks:        Use short duration for intake and exhaust.
Turbos:        Use short or medium duration, exhaust can be shorter,
                       compression must be lower than shown.

    How Much Lift Is Enough?
260 with 1.520 valves gets the best flow at only .390 lift.
307 with 1.750 valves gets the best flow at only .448 lift.
All with 2.000 valves get the best flow at .510 lift.
All with 2.070 valves get the best flow at .528 lift.
Lifts higher than these figures will add more duration at the maximum
flow point.  Excessive lifts will cause more problems than they are
worth in an engine that is not fully race prepared.

    Minimum Engine Horsepower Required To Reach A 1/4 Mile Speed:
HPq = (0.00426 x MPH) x (0.00426 x MPH) x (0.00426 x MPH) x Weight
Top of Page | Parts Index | Parts Combination Guide | Camshafts | Engine Parts
www.amotion.com | Catalogue | Cam Checking | Tech Pages


Accelerated Motion
Performance Products

Burnaby, B.C. Canada

Request price and availability: cams@amotion.com

Camshafts

     Hydraulic Cam and Lifter Kits
All cam and lifter kits include computer cam checking.

Compare     .050 Dur   V.Lift   Adv Dur  Sep    Accelerated Motion #

260 Stock   180/187  .395/.400  256/277  107    69861-18573
307-403 Stock                                   69861-19273
            187/200  .400/.400  277/291  109    69861-19273
307-455 Stock                                   69861-20044
            196/208  .440/.442  272/294  110    69861-20044
307-403 Performer type                          69861-20378
            204/214  .450/.474  280/289  114    69861-20378
MaxVelocity type                                69861-20578
            204/214  .450/.474  280/289  112    69861-20578
            205/213  .448/.451  272/282  110    69861-20811
            205/214  .448/.473  272/281  110    69861-20845
            205/213  .448/.451  272/282  108    69861-21011
            215/215  .455/.455  271/271  111    69861-21446
425-455 Performer type                          69861-21581
            214/224  .474/.498  289/300  112    69861-21581
Performer RPM type                              69861-22583
            224/234  .496/.520  290/300  112    69861-22583
390hp W31   232/232  .474/.474  329/329  113    69861-22947
            234/244  .520/.542  304/316  112    69861-23585
390hp W30   244/244  .475/.475  320/320  110    69861-24448


     LIFTER SET
1968-69     Hydraulic Lifter Set - .842 OD      HT951*16
1970-85     Hydraulic Lifter Set                HT951*16

Top of Page | Parts Index | Parts Combination Guide | Camshafts | Engine Parts
www.amotion.com | Catalogue | Cam Checking | Tech Pages


Accelerated Motion
Performance Products

Burnaby, B.C. Canada

Request price and availability: cams@amotion.com

Last updated September 2011.
(C) Copyright 1996-2011 by Doug Friesen, doug@amotion.com. All rights reserved.
The Accelerated Motion name and logo is a registered trademark of Doug Friesen. All other marks, names and part numbers are the property of their respective owners and are used for the sole purpose of promoting sales and proper use of their products. The information contained at this site is accurate to the best of my abilities and is subject to change without notice.