| Item: | Years of Interchangeability: |
| Engine Block: | 1955,1956,1957,1959-60,1961-64 (Full size V-8), 1964-69 (Tempest & Grand Prix V-8), 1970-79. |
| Bell Housings: | 1955,1956-57,1958-60,1961-64 (Fullsize), 1964-79 (All but 1964 Fullsize) |
| Oil Pump: | 1955-58, 1959-79 |
| Oil Pan: | 1955-58, 1959-60, 1961-63, 1964, 1965-71, 1972-79 |
| Windage Tray: | 1955-58, 1959-60, 1961-62, 1963, 1964, 1965-72 |
| Oil Filter: | 1955-59, 1960-1979 |
| Oil Filter Housing: | 1955-59, 1960-1962, 1963, 1964-1970 (Straight), 1967-1979 (Tilted) |
| Crankshaft: | 1955-1956, 1957-1958, 1959-1966 (3" Main), 1967-1976 (3" Main), 1962-1969 (3.25" Main) |
| Harmonic Balancer: | 1955-1962, 1963, 1964, 1965, 1966, 1967, 1968-1979 |
| Flywheel: | 1955-1957, 1958-1960, 1961-1962, 1963, 1964-1979 |
| Connecting Rods: | 1955-1979 |
| Pistons: | Must be the same as bore, stroke, & head series. **455 SD only fits with SD rods !!! |
| Wrist Pins: | 1955-1957, 1958-1962, 1963-1965, 1966-1979 |
| Rings: | Interchangeable within same bore size except 455 |
| Heads: | 1955, 1956-1960, 1961-1966, 1967-1979 |
| Rocker Arms: | 1955, 1956-1960, 1961-1964, 1963 (421 HO)-1964 (GTO Tripower), 1965, 1966, 1967 (326 only)1967-1979 |
| Pushrods: | 1955-1960, 1961-1966, 1967-1976 (except Ram Air IV), ***Match pushrod to year of head |
| Valve Covers: | 1955-1957, 1958-1960, 1961-1962, 1963-1966, 1967-1979 |
| Lifters: | 1955, 1956-1979 |
| Camshaft: | 1955-1959 except for Ram Air V & 455 Super duty |
| Intake Manifold: | 1955, 1956, 1957-1958, 1959-1960, 1961-1962, 1963-1964, 1965-1971, 1972-1979 |
| Exhaust Manifolds: | 1955, 1956, 1957, 1958, 1959-1979 (D-port) 1968-1974 (Round port) |
| Distributor: | 1955-1979 except for Ram Air V & 455 Super duty |
| Starter: | 1955, 1956-1960, 1961-1964 (Fullsize) 1964 (Tempest & Grand Prix)-1979 |
| Timing Cover: | 1955-1959, 1960, 1961-1962 (Pontiac 8 & Tempest 4), 1963, 1963 1/2-1965, 1966-1967, 1968, 1969-1979 |
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