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Part fits the following years:1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988


1978-88 Monte Carlo Cylinder Head, 454-O Big-Block Chamber Vol. 118cc, Int. Port Vol. 315cc

Part# M980023


Mfg# 60459

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SAVE: $95.96 Retail: $1,055.95

OPGI Price: $959.99


Part Type: (P) High Performance, designed to improve performance
Years: Sold As: EACH
2017 Late Monte Carlo Catalog Page: 245


  • NOTE1: This high-performance item is not eligible for any further discounts or promotional pricing.

These high-performance aluminum cylinder heads have been designed to support over 540 HP in a big-block Chevrolet engine. Each oval port cylinder head uses a unique intake port design to increase flow numbers and performance. Performer cylinder heads have the same great features as the Performer RPM with the exception of the exhaust crossover passage for emissions applications. Part# ED60499 cylinder heads feature a smaller combustion chamber for a higher compression ratio.

Deck Thickness 9/16" Valve Spring Dia. 1.55" Rocker Stud Dia. 7/16" Pushrod Dia. 3/8" Max. Valve Lift .700" Bolt Torque 70-ft./lbs. Exhaust Port Vol. 110cc

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Estimated to arrive the
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