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Old 12-04-2006, 11:07 PM
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WILMASBOYL78 WILMASBOYL78 is offline
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Default Re: '70 Nova L78 (nicely documented)

RPO-L78 Novas in 1970.....total produced 3765. The L78 top end was basically identical to the LS6 454 motors. Heads were the newer 291's with larger valves..2.19 int...1.88 exh. They both shared the same cam, carb, TCS and low profile intake. The other major difference from 69 was the actual CID of the motor...though labeled a 396, they were actually 402's. Lots of theories on why...I will let others debate that. Some guys I know claim the low profile intake hurt performance and many switched back to the 163 or aftermarket in the day. By the way...I know that 69 green car quite well and one of it's prior owners... almost bought it..sorry I didn't...nice car..good luck!


wilma
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