3973487x heads

[83gbody]

Can anybody tell me bout these heads or are they worth redoing.

 

[1bad79]

chevy heads?

 

[83gbody]

Yes Chevy heads an the other head reads 3998993

 

[woody31]

the heads dont match hope you didnt spend alot of money on these

 

[83gbody]

They was free but I just found that they are both 72 model with 1.94/1.50 75cc the 3998993 was made to replace the 487x

 

[1bad79]

just my 2 cents vortec heads are cheap and will out perform those heads if your looking for bang for your buck

 

[83gbody]

I have never use vortec heads but I'm putting these on a 305

 

[mightymouse]

The combustion chamber size is too big to use on a 305.