Huh,I thought that's what the L89 option designated;aluminum heads. Were you trying to say no L78 '70 Chevelles had the L89 option?
Clint Hooper
LT5 Registry
Wichita Falls,Tx
(940) 855-6636 anytime
'90 ZR-1 Red/Red #952
TX TAGS: USA ZR1
http://www.LT5Registry.com/
----- Original Message -----
 
No L89 396/375 HP had aluminum heads (1970 18 made)
Larry

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