R rhardfrumnc New member Jan 9, 2009 #1 Did they <<(GM>> change from the aluminum block to a steel block any particular year?,,,and did GM sleeve the cylinders in 75 and 76? Or were they all aluminum ,,and no sleeves?
Did they <<(GM>> change from the aluminum block to a steel block any particular year?,,,and did GM sleeve the cylinders in 75 and 76? Or were they all aluminum ,,and no sleeves?