OK ... wow alright right now on my engine...i THINK these are the heads i have....

"cylinder heads: cast iron with 64cc chambers. this head include 1.94" intake and 1.50" exhaust valves, with straight type spark plug holes.
they are non-swirl heads.."

that came with a sheet when i bought my car about my engine.....and i was just looking at jegs online...and i looked at the cast iron vortec heads and this is wat is said abuot them.....

"Material: Cast Iron
Intake Port Volume: 170cc
Combustion Chamber Volume: 64cc
Vale Diameter: 1.94'' Int./ 1.50'' Exh.
Spark Plugs: Straight"

so im assuming i could very well have vortec heads???? could this be true?

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when i get home im going to check the casting numbers and all that im just kinda looking for reassurance because i wana know i have some decent parts on my 350
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*mods this post is under aftermarkert products, so if u want delete that one*

 

vortecs have a saw tooth pattern on the front or back of the head...i cant remember. but thats one why ive seen to tell

 

Check the intake bolt pattern.

 

What intake do you have?

 

Never ASSume! If the heads are accessible to the rear. Obtain the serial# & have your friendly GM parts guy decode them. As stated above check the intake bolt pattern. More accurately, what induction is it? Vortec TPI intakes are currently only available through Scoggin Dickey in Texas and NOT cheap. Carbs usually run Edelbrock performer intakes.
I have these heads on my 409ci El Camino engine.
485 pounds torque 420hp!! Complete roller engine w/mild goodies!