Hello all. I am building a small block budget motor with an early 350 4bolt main hydraulic block. I went to the yard and found a set of heads off of an early 3rd gen z-28 Camaro. The car was a tbi car and the heads are cast and centerbolt. I don't have any numbers. Are those heads any good or are they just babies of the 80's junk? Thanks!

 

tbi heads are crap, what are the casting #'s

 

Depends on how much torque you want from idle-5,000 rpm. Not even the Vortecs can match the TBIs to about 4,000 rpm.

 

I would like to pull about 300-350hp with the engine at the crank. I was planning on using a cam with a lift around .500. As far as torque, anywhere between 300-350. I hpoe that this is not out of reason.

 

you def. need different heads. those arent what you want.

 

Thanks for the help, I was trying to do this all on a budget of about $600, I have just a block and crank, summit has a whole kit with bearings, pistons, and all the gaskets for $200. I guess I will just go aluminum.
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On this subject, I am running a ZZ4 crate engine that has the L98 heads, I have not been impressed by their specs. I would like to go with Victor JR heads, but I cannot justify the cost.

 

if it were me, i would stay away from the edelbrock heads. There are a lot of choices out there, i think my next set will be some patriot heads. good flow, cheap price.

 

If you can only justify $600, you might want to drop that into a die grinder and some bits. For about $400 total you can really kick those L98 heads up a notch.
There was one guy on here that went, "max effort" on those heads and got some downright amazing (unbelievable?) results. I think he made 3 separate threads. On the TPI forum. Something like 270cfm at .600" lift was the final result.

 

Wow, I should look into that, thanks for the help.

 

What's a "hydraulic block"?

 

Sorry, hydraulic cam, non-roller.