Re: ZLX question
From page 150 of vintage "How to HotRod Big Block Chevys" in the Heavy duty parts list they show chevy part #3970699 as a partial engine assembly L-88 427: "430 HP L-88/ZL-X short block with 12.5:1 c.r. pistons for use with open-chamber heads, 4-bolt mains." I still dont know what ZL-X refers to.
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1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 Anti-Spin differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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