I've read where The 062 Vortec heads flow much better (particularly from the exhaust port) than the other "Vortec" castings. other casting #s are 906
well the 117,000mi 5.7 SBC Vortec engine I found has the # 10239906 head. he said he would let it go for $450 to me, we been good friends since grade school. hes in the office of a salvage yard and said hes sold prob 40 pair of vortec heads, and has yet to see a 062 casting head. the circle trackers are buying the 10239906 Vortec Heads up. I'm looking at a $450 for a running SBC plus the cost of a LT1 cam swap, and new valve springs (the LT1 cam cause I want to) intake, Carb & HEI and electric fuel pump to get the 63 moving. you think the 906 heads are that bad of a choice ? I will do all the machine work to the vortec heads when 5.7 vortec is tired and I build my next SBC, prob including bigger valves. the vortec motor is temporary (1 1/2 to 2yrs is max I would run the vortec motor) till I can afford to build my 383
Mustangsaly
well the 117,000mi 5.7 SBC Vortec engine I found has the # 10239906 head. he said he would let it go for $450 to me, we been good friends since grade school. hes in the office of a salvage yard and said hes sold prob 40 pair of vortec heads, and has yet to see a 062 casting head. the circle trackers are buying the 10239906 Vortec Heads up. I'm looking at a $450 for a running SBC plus the cost of a LT1 cam swap, and new valve springs (the LT1 cam cause I want to) intake, Carb & HEI and electric fuel pump to get the 63 moving. you think the 906 heads are that bad of a choice ? I will do all the machine work to the vortec heads when 5.7 vortec is tired and I build my next SBC, prob including bigger valves. the vortec motor is temporary (1 1/2 to 2yrs is max I would run the vortec motor) till I can afford to build my 383
Mustangsaly