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Part fits the following years: 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977

Chevelle Cylinder Head, Vortec, by GM

Part# 99L0601

Mfg# 12558060

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SAVE: $42.00 Retail: $461.95

OPGI Price: $419.95

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Brand: GM
Part Type: (G) Genuine General Motors product
Years: Sold As: EACH
2015 Chevelle Catalog Page: 363
2016 Chevelle Catalog Page: 373

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Finally, a performance cylinder head at an economical price! GM's Vortec assembled head features modified combustion chambers and high-velocity port technology to offer very impressive power gains of between 20-40 horsepower over earlier cast-iron heads.

FEATURES INCLUDE: 1.95"/1.5" valves 64cc combustion chambers Straight spark plugs No heat risers Requires Vortec specific manifold Can be machined to accept 2.02"/1.60" valves Pressed-in studs, can be pinned or drilled Valve spring seat diameter is 1.48" Cams with more than 0.475" left require machining Fits 1955 and later small-block except LT1/LT4 and LS family of engines

Make & ModelYear RangeApplication Details
Chevrolet Chevelle1964-1977(G)
Chevrolet Malibu1978-1988(G)
Chevrolet El Camino1964-1977(G)
Chevrolet El Camino1978-1988(G)
Chevrolet Monte Carlo1970-1977(G)
Chevrolet Monte Carlo1978-1988(G)
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