I am going to be swapping a 94 LT1 into my iroc and i was wondering what headers are the best? This motor does not have D port heads according to the mechanic who is helping me. Otherwise i would just use the headmans on the other threads.

Thanks

 

All of the LT1 engines had d-port exhaust ports. The Hedmans will work just fine. Only difference between the Impala motors and F-body ones are the cast heads instead of aluminum.

 

You wouldnt happen to have a better pic of the exhaust port for me to show him maybe they are d ports and they just dont look like ds to him

THanks

 

That's the only pic I could find, and it was off of e-bay. You can tell they are d-ports with the bottom of the ports being flat, and the top curving around.

 

Do all aftermarket heads for LT1 engines have D ports??

 

They should, I know that Trick Flows do and I believe that AFRs do as well since they are for an LT1 and all LT1 engines had d-port exhaust.