what can you tell me about these heads, I can take any other pics you want to. My friend has them, I wanna know ANYTHING you can tell me. Should I put them on my car?

 

I found this on a web site

Years- 1968-76
Casting Number- 3998993 (Casting number on the heads)
Displacement- 350
Intake- 1.72
Exhaust- 1.5
Application- truck

So I'd take it my L98 heads are better?

 

Brian, those heads will choke your engine.


Truck heads aren't really performance-minded heads (one notable exception, the Vortec heads), and thus, you'll need to invest some machine work to get them ready.

Minimal work will be a cleaning to make sure they're not cracked, and a valve job to get them up to 1.94/1.5 valves.

I'd also venture to say that they're 76cc chambers.

 

cool, thanx for the info, my friend basically got them for free and they were offered to me.

 

Yes, they're 76cc chambers... I have a set in my garage also. (If anyone wants em... )

 

Who's the idiot that painted the chambers and the gasket sealing surfaces ?!??!??!?

 

I bet the valve seats are painted too.

 

Dont you use those heads for anything other than door stops. Those were absolutely awful. They crack really easy and those valves wont flow any air at all. Either that or you can use them as a boat anchor.