Thread: sbc chev zz4

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i have a question , i just purchased a used zz4 sbc, i see it has 305 heads vortec heads... the engine came out of a 95 chev truck ,
i also just found a set of gm 23 degree aluminum heads

trying to put together a 55 chev truck..want a streetable hotrod..wont be a daily driver for sure...i just would like advice on which heads to use.

by my internet research it looks like the 305's will give it 11.1 compression

also should i use the zz4 cam or can you recommend a new cam with the aluminum?

the heads are supposed to have the heavy springs, what roller rockers lift should i have 3/8 studs?

thanks for any advice you can give me

i am a newbe at hotrodding

i am looking for a street/strip rod

the head numbers are 14101081, the block numbers 10243880

I also found a red and silver sticker glued to the block says remanufactured number 548767
probably was a crate motor that was rebuilt with vortec heads 4 bolts down center valve cover , is hard to say whats inside without dismantling
what do you think?

i know its a lot of questions but want to do this right
thanks