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My son bought a 70 SS 396 with a 427. We are trying to ID the engine but our books are not too complete and could use some help. The ID number on the front of the engine starts with "LB" and then the rest of the number. My book says its a 1969 427 4bll but nothing else. Of interest to me is that the block has cast in raised letters "high performance" on the side of the block underneath the exhaust ports on the drivers side. Was this cast into all big blocks and does anyone know anything further about the motor? Thanks Ted
 

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L B is a '69 427-335 hp, from an Impala, or big car.

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1972 Malibu (1 st. car) Project waiting to happen
Team Chevelle # 427
A.C.E.S. # 1282
 
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