Speed Pro AT-992 Engine Valve Lifter
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Speed Pro

Speed Pro AT-992 Engine Valve Lifter

Brand Speed Pro AT-992
Note O.E. Replacement
Type MF
Fits Chevrolet and Pontiac · 208 vehicles

O.E. replacement. Mechanical valve lifter for dependable valve train service.

Engine valve lifter. Built for precise valve train operation in performance engines.

Speed-Pro value. Trusted engine components with quality and performance focus.

Cross-references Four Seasons 36992, 2131692 and 5231315 for the same application. See all 25.

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Mechanical OE Replacement Valve Lifter

Speed Pro AT-992 is a mechanical engine valve lifter built as an OE replacement for classic Chevrolet and Pontiac applications. It is listed for high-performance and mechanical valvetrain setups across Corvette, Camaro, Impala, Bel Air, Nova, and related models.

  • Mechanical design for solid valvetrain applications
  • OE replacement specification for direct-service use
  • Type MF construction for listed engine applications
  • Fits a wide range of Chevrolet and Pontiac V8-era performance builds
  • Part number AT-992 for catalog and service matching

Fitment Coverage

  • Fits 1970-1972 Chevrolet Bel Air, with Special High Performance Engine; Mechanical
  • Fits 1970-1972 Chevrolet Camaro, with Special High Performance Engine; Mechanical
  • Fits 1970-1972 Chevrolet Caprice, with Special High Performance Engine; Mechanical
  • Fits 1962-1972 Chevrolet Corvette, Mechanical
  • Fits 1970-1972 Chevrolet Impala, with Special High Performance Engine; Mechanical
  • Fits 1970-1972 Chevrolet Monte Carlo, with Special High Performance Engine; Mechanical
  • Fits 1970-1972 Chevrolet Nova, with Special High Performance Engine; Mechanical
  • Fits 1970-1971 Pontiac Acadian, with Special High Performance Engine; Mechanical
  • Fits 1970 Pontiac Laurentian, with Special High Performance Engine; Mechanical
  • Fits 1970 Pontiac Parisienne, with Special High Performance Engine; Mechanical
  • Fits 1958-1969 Chevrolet Bel Air, Mechanical
  • Fits 1967-1969 Chevrolet Camaro, Mechanical
  • Fits 1966-1969 Chevrolet Caprice, Mechanical
  • Fits 1958-1969 Chevrolet Impala, Mechanical
  • Fits 1969 Chevrolet Nova, Mechanical
  • Fits 1965-1969 Pontiac Acadian, Mechanical
  • Fits 1958-1969 Pontiac Laurentian, Mechanical
  • Fits 1959-1969 Pontiac Parisienne, Mechanical
  • Fits 1964-1967 Chevrolet Malibu, Mechanical
  • Fits 1957-1961 Chevrolet Bel Air, High Lift Camshaft; Mechanical
  • Fits 1957-1961 Chevrolet Corvette, High Lift Camshaft; Mechanical
  • Fits 1958-1961 Chevrolet Impala, High Lift Camshaft; Mechanical
  • Fits 1957-1961 Pontiac Laurentian, High Lift Camshaft; Mechanical
  • Fits 1959-1961 Pontiac Parisienne, High Lift Camshaft; Mechanical

What This Valve Lifter Helps Address

  • Worn or noisy mechanical lifter operation in classic V8 valvetrains
  • Service replacement needs for OE-style mechanical lifter applications
  • Restoration work on Chevrolet Corvette, Camaro, and Impala engines
  • High-lift camshaft valvetrain service on listed Chevrolet and Pontiac models
  • Catalog matching when replacing an existing AT-992 lifter

Installation Notes

Verify the engine uses a mechanical lifter setup before ordering. Confirm the application against the vehicle’s engine code, camshaft type, and service history, especially on Chevrolet Corvette, Camaro, and Impala models with special high-performance or high-lift camshaft notes. This part cross-references Four Seasons 36992 for the same application.

Quality Assurance

Speed Pro positions this component as an OE replacement part for performance and street use, with coverage aimed at factory-style service needs in classic Chevrolet and Pontiac engines. Part number AT-992 is supported by multiple interchange references for catalog verification.

Related reading

This part fits 208 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1972ChevroletBel Air6.6LV8N/Awith Special High Performance Engine; Mechanical
1972ChevroletCamaro6.6LV8N/Awith Special High Performance Engine; Mechanical
1972ChevroletCaprice6.6LV8N/Awith Special High Performance Engine; Mechanical
1972ChevroletCorvette5.7LV8N/AMechanical
1972ChevroletImpala6.6LV8N/Awith Special High Performance Engine; Mechanical
1972ChevroletMonte Carlo6.6LV8N/Awith Special High Performance Engine; Mechanical
1972ChevroletNova6.6LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletBel Air7.4LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletBel Air6.6LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletCamaro6.6LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletCaprice7.4LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletCaprice6.6LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletCorvette5.7LV8N/AMechanical
1971ChevroletCorvette7.4LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletImpala7.4LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletImpala6.6LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletMonte Carlo7.4LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletMonte Carlo6.6LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletNova7.4LV8N/Awith Special High Performance Engine; Mechanical
1971ChevroletNova6.6LV8N/Awith Special High Performance Engine; Mechanical
1971PontiacAcadian7.4LV8N/Awith Special High Performance Engine; Mechanical
1971PontiacAcadian6.6LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletBel Air7.4LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletBel Air6.6LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletCamaro6.6LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletCaprice7.4LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletCaprice6.6LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletCorvette5.7LV8N/AMechanical
1970ChevroletCorvette7.4LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletImpala7.4LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletImpala6.6LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletMonte Carlo7.4LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletMonte Carlo6.6LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletNova7.4LV8N/Awith Special High Performance Engine; Mechanical
1970ChevroletNova6.6LV8N/Awith Special High Performance Engine; Mechanical
1970PontiacAcadian7.4LV8N/Awith Special High Performance Engine; Mechanical
1970PontiacAcadian6.6LV8N/Awith Special High Performance Engine; Mechanical
1970PontiacLaurentian7.4LV8N/Awith Special High Performance Engine; Mechanical
1970PontiacLaurentian6.6LV8N/Awith Special High Performance Engine; Mechanical
1970PontiacParisienne7.4LV8N/Awith Special High Performance Engine; Mechanical
1970PontiacParisienne6.6LV8N/Awith Special High Performance Engine; Mechanical
1969ChevroletBel Air7.0LV8N/AMechanical
1969ChevroletCamaro6.5LV8N/AMechanical
1969ChevroletCamaro5.3LV8N/AMechanical
1969ChevroletCamaro4.9LV8N/AMechanical
1969ChevroletCamaro5.4LV8N/AMechanical
1969ChevroletCamaro7.0LV8N/AMechanical
1969ChevroletCamaro5.0LV8N/AMechanical
1969ChevroletCaprice7.0LV8N/AMechanical
1969ChevroletCaprice5.3LV8N/AMechanical
1969ChevroletCaprice5.4LV8N/AMechanical
1969ChevroletCorvette7.0LV8N/AMechanical
1969ChevroletCorvette5.7LV8N/AMechanical
1969ChevroletImpala5.3LV8N/AMechanical
1969ChevroletImpala5.4LV8N/AMechanical
1969ChevroletImpala7.0LV8N/AMechanical
1969ChevroletNova6.5LV8N/AMechanical
1969PontiacAcadian6.5LV8N/AMechanical
1969PontiacLaurentian5.3LV8N/AMechanical
1969PontiacLaurentian7.0LV8N/AMechanical
1969PontiacParisienne5.3LV8N/AMechanical
1969PontiacParisienne7.0LV8N/AMechanical
1968ChevroletBel Air5.3LV8N/AMechanical
1968ChevroletBel Air6.5LV8N/AMechanical
1968ChevroletBel Air7.0LV8N/AMechanical
1968ChevroletBel Air5.4LV8N/AMechanical
1968ChevroletCamaro6.5LV8N/AMechanical
1968ChevroletCamaro5.3LV8N/AMechanical
1968ChevroletCamaro4.9LV8N/AMechanical
1968ChevroletCamaro5.4LV8N/AMechanical
1968ChevroletCaprice7.0LV8N/AMechanical
1968ChevroletCaprice6.5LV8N/AMechanical
1968ChevroletCaprice5.3LV8N/AMechanical
1968ChevroletCaprice5.4LV8N/AMechanical
1968ChevroletCorvette5.3LV8N/AMechanical
1968ChevroletCorvette7.0LV8N/AMechanical
1968ChevroletCorvette5.4LV8N/AMechanical
1968ChevroletImpala5.3LV8N/AMechanical
1968ChevroletImpala5.4LV8N/AMechanical
1968ChevroletImpala6.5LV8N/AMechanical
1968ChevroletImpala7.0LV8N/AMechanical
1968PontiacAcadian6.5LV8N/AMechanical
1968PontiacAcadian5.3LV8N/AMechanical
1968PontiacLaurentian5.3LV8N/AMechanical
1968PontiacLaurentian7.0LV8N/AMechanical
1968PontiacLaurentian6.5LV8N/AMechanical
1968PontiacParisienne5.3LV8N/AMechanical
1968PontiacParisienne7.0LV8N/AMechanical
1968PontiacParisienne6.5LV8N/AMechanical
1967ChevroletBel Air5.3LV8N/AMechanical
1967ChevroletBel Air6.5LV8N/AMechanical
1967ChevroletBel Air7.0LV8N/AMechanical
1967ChevroletCamaro6.5LV8N/AMechanical
1967ChevroletCamaro5.3LV8N/AMechanical
1967ChevroletCamaro4.9LV8N/AMechanical
1967ChevroletCaprice7.0LV8N/AMechanical
1967ChevroletCaprice6.5LV8N/AMechanical
1967ChevroletCaprice5.3LV8N/AMechanical
1967ChevroletCorvette5.3LV8N/AMechanical
1967ChevroletCorvette7.0LV8N/AMechanical
1967ChevroletImpala5.3LV8N/AMechanical
1967ChevroletImpala5.4LV8N/AMechanical
1967ChevroletImpala6.5LV8N/AMechanical
1967ChevroletImpala7.0LV8N/AMechanical
1967ChevroletMalibu5.3LV8N/AMechanical
1967ChevroletMalibu6.5LV8N/AMechanical
1967PontiacAcadian5.3LV8N/AMechanical
1967PontiacLaurentian5.3LV8N/AMechanical
1967PontiacLaurentian7.0LV8N/AMechanical
1967PontiacLaurentian6.5LV8N/AMechanical
1967PontiacParisienne5.3LV8N/AMechanical
1967PontiacParisienne7.0LV8N/AMechanical
1967PontiacParisienne6.5LV8N/AMechanical
1966ChevroletBel Air5.3LV8N/AMechanical
1966ChevroletBel Air6.5LV8N/AMechanical
1966ChevroletBel Air7.0LV8N/AMechanical
1966ChevroletCaprice7.0LV8N/AMechanical
1966ChevroletCaprice6.5LV8N/AMechanical
1966ChevroletCaprice5.3LV8N/AMechanical
1966ChevroletCorvette5.3LV8N/AMechanical
1966ChevroletCorvette7.0LV8N/AMechanical
1966ChevroletImpala5.3LV8N/AMechanical
1966ChevroletImpala5.4LV8N/AMechanical
1966ChevroletImpala6.5LV8N/AMechanical
1966ChevroletImpala7.0LV8N/AMechanical
1966ChevroletMalibu5.3LV8N/AMechanical
1966ChevroletMalibu6.5LV8N/AMechanical
1966PontiacAcadian5.3LV8N/AMechanical
1966PontiacLaurentian5.3LV8N/AMechanical
1966PontiacLaurentian7.0LV8N/AMechanical
1966PontiacLaurentian6.5LV8N/AMechanical
1966PontiacParisienne5.3LV8N/AMechanical
1966PontiacParisienne7.0LV8N/AMechanical
1966PontiacParisienne6.5LV8N/AMechanical
1965ChevroletBel Air5.3LV8N/AMechanical
1965ChevroletBel Air6.5LV8N/AMechanical
1965ChevroletCorvette5.3LV8N/AMechanical
1965ChevroletCorvette6.5LV8N/AMechanical
1965ChevroletImpala5.3LV8N/AMechanical
1965ChevroletImpala5.4LV8N/AMechanical
1965ChevroletImpala6.5LV8N/AMechanical
1965ChevroletMalibu5.3LV8N/AMechanical
1965ChevroletMalibu6.5LV8N/AMechanical
1965PontiacAcadian5.3LV8N/AMechanical
1965PontiacLaurentian5.3LV8N/AMechanical
1965PontiacParisienne5.3LV8N/AMechanical
1964ChevroletBel Air5.3LV8N/AMechanical
1964ChevroletCorvette5.3LV8N/AMechanical
1964ChevroletImpala5.3LV8N/AMechanical
1964ChevroletImpala5.4LV8N/AMechanical
1964ChevroletMalibu5.3LV8N/AMechanical
1964PontiacLaurentian5.3LV8N/AMechanical
1964PontiacParisienne5.3LV8N/AMechanical
1963ChevroletBel Air5.3LV8N/AMechanical
1963ChevroletCorvette5.3LV8N/AMechanical
1963ChevroletImpala5.3LV8N/AMechanical
1963PontiacLaurentian5.3LV8N/AMechanical
1963PontiacParisienne5.3LV8N/AMechanical
1962ChevroletBel Air6.7LV8N/AMechanical
1962ChevroletBel Air5.3LV8N/AMechanical
1962ChevroletCorvette5.3LV8N/AMechanical
1962ChevroletImpala6.7LV8N/AMechanical
1962ChevroletImpala5.3LV8N/AMechanical
1962PontiacLaurentian6.7LV8N/AMechanical
1962PontiacLaurentian5.3LV8N/AMechanical
1962PontiacParisienne6.7LV8N/AMechanical
1962PontiacParisienne5.3LV8N/AMechanical
1961ChevroletBel Air4.6LV8N/AHigh Lift Camshaft; Mechanical
1961ChevroletBel Air5.7LV8N/AMechanical
1961ChevroletBel Air6.7LV8N/AMechanical
1961ChevroletCorvette4.6LV8N/AHigh Lift Camshaft; Mechanical
1961ChevroletImpala5.7LV8N/AMechanical
1961ChevroletImpala4.6LV8N/AHigh Lift Camshaft; Mechanical
1961ChevroletImpala6.7LV8N/AMechanical
1961PontiacLaurentian4.6LV8N/AHigh Lift Camshaft; Mechanical
1961PontiacLaurentian5.7LV8N/AMechanical
1961PontiacLaurentian6.7LV8N/AMechanical
1961PontiacParisienne5.7LV8N/AMechanical
1961PontiacParisienne4.6LV8N/AHigh Lift Camshaft; Mechanical
1961PontiacParisienne6.7LV8N/AMechanical
1960ChevroletBel Air4.6LV8N/AHigh Lift Camshaft; Mechanical
1960ChevroletBel Air5.7LV8N/AMechanical
1960ChevroletCorvette4.6LV8N/AHigh Lift Camshaft; Mechanical
1960ChevroletImpala5.7LV8N/AMechanical
1960ChevroletImpala4.6LV8N/AHigh Lift Camshaft; Mechanical
1960PontiacLaurentian4.6LV8N/AHigh Lift Camshaft; Mechanical
1960PontiacLaurentian5.7LV8N/AMechanical
1960PontiacParisienne5.7LV8N/AMechanical
1960PontiacParisienne4.6LV8N/AHigh Lift Camshaft; Mechanical
1959ChevroletBel Air4.6LV8N/AHigh Lift Camshaft; Mechanical
1959ChevroletBel Air5.7LV8N/AMechanical
1959ChevroletCorvette4.6LV8N/AHigh Lift Camshaft; Mechanical
1959ChevroletImpala5.7LV8N/AMechanical
1959ChevroletImpala4.6LV8N/AHigh Lift Camshaft; Mechanical
1959PontiacLaurentian4.6LV8N/AHigh Lift Camshaft; Mechanical
1959PontiacLaurentian5.7LV8N/AMechanical
1959PontiacParisienne5.7LV8N/AMechanical
1959PontiacParisienne4.6LV8N/AHigh Lift Camshaft; Mechanical
1958ChevroletBel Air4.6LV8N/AHigh Lift Camshaft; Mechanical
1958ChevroletBel Air5.7LV8N/AMechanical
1958ChevroletCorvette4.6LV8N/AHigh Lift Camshaft; Mechanical
1958ChevroletImpala5.7LV8N/AMechanical
1958ChevroletImpala4.6LV8N/AHigh Lift Camshaft; Mechanical
1958PontiacLaurentian4.6LV8N/AHigh Lift Camshaft; Mechanical
1958PontiacLaurentian5.7LV8N/AMechanical
1957ChevroletBel Air4.6LV8N/AHigh Lift Camshaft; Mechanical
1957ChevroletCorvette4.6LV8N/AHigh Lift Camshaft; Mechanical
1957PontiacLaurentian4.6LV8N/AHigh Lift Camshaft; Mechanical
Directly replaces or cross-references 25 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 369922131692523131552315855232215523243952325505232695A992JB992M402M992MA992ML4ML102ML992ML992MMT992T1242VL17VL43VL63VT1840VT1883VT1992