 | There were two versions of the big-block 396-ci 375-hp engines offered for the 1969 Camaro: the L78 and the L89. The L78 used standard cast-iron cylinder heads, while the L89 featured aluminum heads. 311 of the lighter L89s were made, compared with 4,889 L78s. The heads shaved about 50 pounds of curb weight off the car’s nose, and that was an important factor for hardcore racers. The option was an expensive $710.95 — more than double the price of the L78 option.The L78 utilized a solid-lifter camshaft, forged-steel crankshaft, and forged, domed pistons building a compression ratio of 11.0:1. It likely produced 425 hp and not the touted 375hp. | |
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