PONTIAC

4 Cylinder
Engine Parts



151 (2.5L) 1977-79 except cross flow head
151 (2.5L) 1979-93 with cross flow head



Parts Index

Parts Combination 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. Continue to the parts lists to find the parts that fit your level.

Camshaft and lifter kits.

Valve Train includes pushrod sets, rocker arm sets, timing sets, valve spring sets, valves, and everything for assembling your heads.

Engine Bottom End includes engine overhaul kits, oil pumps, piston sets, ring sets, and misc. parts for assembling your short block.

Top of Page | Parts Index | Parts Combination Guide | Camshafts
For Reference only: Valve Train | Engine Bottom End

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 Car  (idle to 3600 rpm, max. HP @ 4600 rpm)
Good fuel economy and improved low-end for city use.  Recalibrate your
stock fuel system.  No other modifications are required.
Engine:        Cam Range*
151            up to 19600
              *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
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 and improved mid-range performance for every day use.
No internal engine modifications are required.
Engine:        Cam Range*         Air/Fuel Range:     Horsepower:
151            19600 to 20400      222 to 278 cfm     Max. 121 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 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.
Engine:        Cam Range*         Air/Fuel Range:     Horsepower:
151            20400 to 21200      250 to 309 cfm     Max. 136 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 perf. 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.
Engine:        Cam Range*         Air/Fuel Range:     Horsepower:
151            21200 to 22000      278 to 341 cfm     Max. 151 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:       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 for street machines.  Multi-angle valve
grind is recommended.
Engine:        Cam Range*         Air/Fuel Range:     Horsepower:
151            22000 to 22800      308 to 373 cfm     Max. 166 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:       Performance 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:
151            22800 to 23600      338 to 405 cfm     Max. 181 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 13.0:1
Exhaust:       Performance 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:
151            23600 and up        369 cfm and up      181 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:       Performance 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?
151 gets the best flow past the valves at only .440 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
For Reference only: Valve Train | Engine Bottom End

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 Kit  1979-84 with cross flow head
	 Also AMC/Jeep w/GM 151(2.5) 4 Cyl. 1980-83

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

1979-86     Hydraulic Lifter Set                HT2077*8      ***
All kits include computer cam checking:
Stock       190/190  .406/.406  276/276  112    76441-18841
            190/190  .464/.464  253/253  112    76441-18846
            190/202  .464/.474  253/261  112    76441-19264
            192/202  .474/.474  252/261  112    76441-19380
            198/200  .478/.481  263/280  111    76441-19814
            205/213  .476/.470  267/277  111    76441-20614
Turbo and/or Propane                            76441-20680
            213/205  .470/.476  277/267  114    76441-20680
            213/213  .470/.470  277/277  112    76441-21147
            214/224  .516/.543  280/290  112    76441-21585
Turbo and/or Propane                            76441-21720
            224/214  .543/.516  290/280  114    76441-21720
Turbo and/or Propane                            76441-21951
            226/217  .518/.515  292/277  114    76441-21951
            217/226  .515/.518  277/292  111    76441-21952
            225/225  .535/.535  277/277  112    76441-22354

     Hydraulic Roller Cam and Lifter Kit  1984-93
Five types of hydraulic roller cam engines were produced and the
cams are not interchangeable.  Check the 8th position of your
vehicle identification number or measure the cam snout to be sure
of which engine you have.

     Hydraulic Roller Cam and Lifter Kit  1984-93
     VIN 2, A, E, or R.  Snout is 1.0 long.  Gear drive.
     Buick Century to 1990.
     All Chevrolet, including Camaro to 1990.
     Chevrolet S10/S15 Trucks to 1993.
     Oldsmobile Cutlass to 1990.
     Pontiac 6000 and Firebird to 1990.
     Pontiac Fiero to 1988 except chain driven cam.

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

1984-93     Hydraulic Roller Lifter Set         HT2148*8      ***
All kits include computer cam checking:
Stock 1984-91                                   76448-18840
            190/190  .404/.404  276/276  112    76448-18840
Stock Cars 1990, S10/S15 Trucks 1991-93         76448-19144
            193/193  .434/.434  273/277  112    76448-19144
            204/204  .469/.469  262/262  112    76448-20247
Propane and/or Turbo                            76448-20315
            208/204  .487/.469  277/262  114    76448-20315
            204/214  .469/.478  262/277  112    76448-20580
Propane and/or Turbo                            76448-20582
            210/208  .489/.487  277/277  114    76448-20582
            207/208  .503/.513  268/268  112    76448-20584
            208/210  .487/.489  277/277  112    76448-20715
            208/214  .487/.478  277/277  112    76448-20848
            210/210  .489/.489  277/277  112    76448-20849
            211/211  .539/.539  267/267  112    76448-20954
            214/214  .478/.478  277/277  112    76448-21248
Turbo       220/211  .549/.539  292/267  114    76448-21355
            211/220  .539/.549  267/292  110    76448-21454
            220/220  .549/.549  292/292  112    76448-21854
            225/225  .541/.541  291/291  112    76448-22354

     Hydraulic Roller Cam and Lifter Kit  1985-89
     VIN U.  Snout is .860 long.  Gear drive.
     Buick Skylark and Somerset to 1989.
     Oldsmobile Calais to 1989.
     Pontiac Grand Am to 1989.

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

1985-89     Hydraulic Roller Lifter Set         HT2148*8      ***
All kits include computer cam checking:
Stock       190/190  .404/.404  276/276  112    76458-18840
            204/204  .469/.469  262/262  112    76458-20247
Propane and/or Turbo                            76458-20315
            208/204  .487/.469  277/262  114    76458-20315
            204/214  .469/.478  262/277  112    76458-20580
Propane and/or Turbo                            76458-20582
            210/208  .489/.487  277/277  114    76458-20582
            207/208  .503/.513  268/268  112    76458-20584
            208/210  .487/.489  277/277  112    76458-20715
            208/214  .487/.478  277/277  112    76458-20848
            210/210  .489/.489  277/277  112    76458-20849
            211/211  .539/.539  267/267  112    76458-20954
            214/214  .478/.478  277/277  112    76458-21248
Turbo       220/211  .549/.539  292/267  114    76458-21355
            211/220  .539/.549  267/292  110    76458-21454
            220/220  .549/.549  292/292  112    76458-21854
            225/225  .541/.541  291/291  112    76458-22354
Top of Page | Parts Index | Parts Combination Guide | Camshafts
For Reference only: Valve Train | Engine Bottom End

www.amotion.com | Catalogue | Cam Checking | Tech Pages


Accelerated Motion
Performance Products

Burnaby, B.C. Canada

Request price and availability: cams@amotion.com

VALVE TRAIN

     CAM KEY
Advance or retard your cam to suit your need.
     2 degree short                    Mr. Gasket 987
     4 degree short                    Mr. Gasket 988

     CAM LUBE
     3 oz. Tube, Paste                 Bel-Ray Anti-Seize
     4 oz. Bottle, LL-5 Liquid         Sealed Power 55-400

     LIFTER SET
     1977-79 Hydraulic                 Sealed Power HT969*8
     1977-84 Hydraulic high rev        Speed Pro HT969R*8
     1979-84 Hydraulic                 Sealed Power HT2077*8
     1984-92 Hydraulic roller          HT2148*8

     PUSH ROD SET
     1977-79 except cross flow  9.677  Sealed Power RP3180*8
     1977-79 chrome moly        9.680  Speed Pro RP3214R*8
     1977-79 +.124 lift         9.748  Sealed Power RP3276*8
     1979-81 cross flow         8.906  Sealed Power RP3210*8
     1979-81 +.123  lift        8.976  Sealed Power RP3211*8
     1982-84 exc hyd roller     8.976  Sealed Power RP3211*8
     1984 hydraulic roller      8.276  Sealed Power RP3263*8
     1985-86 hydraulic roller   8.383  Sealed Power RP3170*8
     1987-92                    8.276  Sealed Power RP3263*8

     ROCKER ARM SET
     Stock shoulder bolt style         Sealed Power R894*8

     TIMING SET
     1977-90 Stock gear set 1977-90    Sealed Power 221-2542S
     1985-89 U Stock gear set          Sealed Power 221-2544S
     1990-91 3pc chain set exc. U      Sealed Power KT3-378S

     VALVE KEEPER SET
     1977-86 Stock, 11/32              Sealed Power VK115*16
     1977-86 Hardened, 11/32           Speed Pro VK115R*16
     1977-86 Machined/Hardened, 11/32  Speed Pro VK315R*16
     Machined/Hardened, 11/32, 3/8x7   Speed Pro VK415R*16
     1984 Stock Fiero                  Sealed Power VK216*16
     1987-92 Stock                     Sealed Power VK216*16
     Machined/Hardened, 5/16, 11/32x7  Speed Pro VK244R*16
     Machined/Hardened, 5/16, 3/8x7    Speed Pro VK444R*16

     VALVE SPRING INSERT
     1.250 x .875 x .030               Sealed Power 259-201B
     1.250 x .875 x .060               Sealed Power 259-201A
     1.360 x 1.000 x .015              Sealed Power 259-102C
     1.360 x 1.000 x .030              Sealed Power 259-102B
     1.360 x 1.000 x .060              Sealed Power 259-102A
     Set of 8 standard inserts, mix and match
     1.250 x .875 x .015 hardened      Speed Pro 259-201CHP
     1.360 x 1.000 x .015 hardened     Speed Pro 259-102CHP
     1.360 x 1.000 x .030 hardened     Speed Pro 259-102BHP
     1.360 x 1.000 x .060 hardened     Speed Pro 259-102AHP
     Set of 8 hardened inserts, mix and match

     VALVE SPRING RETAINER SET
     For VS739R as below               Speed Pro VSR7000R*8
     Chrome-Moly 1.25OD, 11/32x7+.050  Speed Pro VSR7000R*8
     For VS890R as below               Speed Pro VSR7001R*8
     Chrome-Moly 1.44OD, 3/8x7, +.060  Speed Pro VSR7001R*8
     For VS890R as below               Speed Pro VSR7018R*8
     Chrome-Moly 1.37OD, 11/32x7       Speed Pro VSR7018R*8
     For VS741R as below               Speed Pro VSR7006R*8
     Chrome-Moly 1.40OD, 3/8x7, +.080  Speed Pro VSR7006R*8

     VALVE SPRING SET
     1977-85 stock height is 1.66
     1977-85 Stock                     Sealed Power VS521*8
     1986 Stock                        Sealed Power VS921*8
     1987-88 Stock                     Sealed Power VS861*8
     1989-90 Stock                     Sealed Power VS922*8
     1991-92 Stock                     Sealed Power VS925*8
  Performance and Race Valve Spring Selection:
     Int.Dur.@.050   Seat Pressure   Open Pressure
       180 to 200      90 to 100      225 to 250
       200 to 220     100 to 110      250 to 275
       220 to 240     110 to 120      275 to 300
       240 to 260     120 to 130      300 to 325
Use Valve Spring Shims to adjust height and pressure.
Performance spring lift and pressure is based on 1.66 stock
height and the variance caused by the retainer.
S    Single springs
S-D  Single springs with dampeners
D    Dual springs
D-D  Dual Springs with dampeners
Dual valve springs require cylinder head machining.
S/D  1.26OD/100#@1.71/277#@.500Lift    Speed Pro VS739R*8
D    1.38OD/110#@1.72/260#@.670Lift    Speed Pro VS890R*8
D    1.39OD/124#@1.66/260#@.610Lift    Speed Pro VS890R*8
D    1.39OD/138#@1.74/319#@.590Lift    Speed Pro VS741R*8

     VALVE STEM SEAL SET (machining required)
     .343v .562g .728 rubber/teflon    Sealed Power ST2001*8
     .343v .531g .697 rubber/teflon    Sealed Power ST2003*8
     .343v .531g .650 teflon           Speed Pro ST2018R*8

     VALVE STEM SEAL GUIDE CUTTER
     For ST2001 seals                  Sealed Power MT2001H
     For ST2003 and ST2018R seals      Sealed Power MT2003H

     VALVE - EXHAUST
     1977-79 exc cross flow, 1.50      Sealed Power V2078
     1979-86 cross flow, 1.50 x 11/32  Sealed Power V2203
     1987-88, 1.50 x 8mm               Sealed Power V2436
     1989-92, 1.50 x 8mm               Sealed Power V2529

     VALVE - EXHAUST SET OF 4
     1.50 x 11/32 x 4.924    (21-2N)   Sealed Power V2078*4
     1.50 x 11/32 x 4.619    (21-2N)   Sealed Power V2203*4
     1.50 x 8mm x 4.355      (21-2N)   Sealed Power V2436*4
     1.50 x 8mm x 4.541      (21-2N)   Sealed Power V2529*4

     VALVE - INTAKE
     1977-79 exc cross flow, 1.72      Sealed Power V2079
     1979-86 cross flow, 1.72 x 11/32  Sealed Power V2204
     1987-88, 1.72 x 8mm               Sealed Power V3941
     1989-92, 1.72 x 8mm               Sealed Power V2530

     VALVE - INTAKE SET OF 4
     1.72 x 11/32 x 4.924    (1047)    Sealed Power V2079*4
     1.72 x 11/32 x 4.669    (1041)    Sealed Power V2204*4
     1.72 x 8mm x 4.394      (1547)    Sealed Power V3941*4
     1.72 x 8mm x 4.591      (1547)    Sealed Power V2530*4
Top of Page | Parts Index | Parts Combination Guide | Camshafts
For Reference only: Valve Train | Engine Bottom End

www.amotion.com | Catalogue | Cam Checking | Tech Pages


Accelerated Motion
Performance Products

Burnaby, B.C. Canada

Request price and availability: cams@amotion.com

ENGINE BOTTOM END

     CAM BEARING SET
     Stock                    (Babbit) F-M 1461M

     CONNECTING ROD - RECONDITIONED
     1977-84                           F-M CR1455

     FROST PLUG BLOCK KIT - BRASS
     1977-85                           Sealed Power 381-8045
     1986-92                           Sealed Power 381-8074

     MAIN BEARING SET
     1977-92 except U, 1.009 flange    F-M 6689M
     U, .943 flange                    F-M 6690M

     OIL PUMP
     1977-79 except cross flow         Sealed Power 224-4158
     1977-79 high volume               Sealed Power 224-4158HV
     1979-87 cross flow                Sealed Power 224-41239
     1979-87 cross flow, high volume   Sealed Power 224-41239V
     1979-87, performance high volume  Speed Pro 224-111R

     OIL PUMP INTERMEDIATE SHAFT       Sealed Power 224-61239

     PISTON SET
     8.5:1                             TRW Forged L2484F*4
     9.1:1                             TRW Forged L2485F*4

     PISTON PIN BUSHING SET

     RING SET (5/64-5/64-3/16)
     Plain cast                        Sealed Power E382X
     Moly cast                         Sealed Power E382K
     Plasma moly, ductile iron         Speed Pro R10511
     P.Moly, ductile iron, file fit    Speed Pro R10355

     ROD BEARING SET                   F-M 4-2500RAA
Top of Page | Parts Index | Parts Combination Guide | Camshafts
For Reference only: Valve Train | Engine Bottom End

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 February 2012.
(C) Copyright 1996-2012 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.