4.3 TBI

[Vandervoort, Richard D]

Shannen

The L35 heads have bigger ports and flow better than earlier vortec
heads,  I want to know if the heads that came stock on my vehicle are
the L35 type or the earlier TBI type.


> Vandervoort, Richard D wrote:
> > 
> > The GM part book lists one cylinder head for both the 94 TBI and 94
> CPI
> > (L35) engine, does that guarantee that both use the same head or
> that
> > just one replacement head is available.  I have the TBI engine which
> > included the balance shaft in 94.  How do I determine which
> powertrain
> > controller is used in my vehicle.
> > 
> >snipped<
> 
> What do you need to know about the heads?
> We've put 86 heads on 95 replacement block, and new GM
> replacement engines for early TBI 4.3 is a Vortec engine
> minus intake and exhaust manifolds.  Never run into 4.3
> cylinder head incompatibility, doesn't mean it doesn't
> exist.
> 
> Shannen
> 
> Shannen
>