Exhaust port difference?
 

I have a 71 C10 that has an LT style vortec 350 in it and I’m looking for a set of chrome-oly headers but unsurprisingly nobody makes headers for that era truck that are LT specific. so my question is will there be any significant issues or power drops using normal headers on LT type heads?

Re: Exhaust port difference?
 

If this is the "LT" type engine that was used in cars, from around 1994-1997, that engine was never factory installed in Chevy or GMC pickups. It's a good engine, just not a pickup engine, and was not built for very long. You may have to go with factory exhaust manifolds or have headers made...

Re: Exhaust port difference?
 

You are talking the "D" port on the LT vs the regular square port right?