raroz28

I was looking for a site or sites with stock LT1 head flow numbers, and what certain methods of porting got them flowing. I'm getting a 300 dollar port job and I'm trying to figure out what exactly its gonna do for me. He said he's gonna do a bowl blend, port the inside. I dont know about gasket match porting.

Anything??

SiDeWaYZz28

ive searched the site and im also curios the stock head flow #'s

rskrause

http://www.fierolt1.com/lt1_lt4_headflow.htm

Rich

1quikZ

How come the 94-95 Impala cast Iron's are flowing more and have higher HP potential than the Aluminum LT1's?

rskrause

While I can't verify the accuracy of every number on that page, stock cast iron LT1 heads are well known to flow a bit more than stock aluminum castings. As far as hp potential, even though iron heads also have a thermal advantage over aluminum, the Al heads can usually run a bit higher compression, so it's probably a wash in spite of a few additional CFM.

Rich

1quikZ

really, so I have all mods in my sig in '95 impy SS motor in my car, does this mean im making slighty more power than an identical al head motor?

1quikZ

does this make sense then?